professor ben schafer's thin-walled structures research group - johns hopkins university

 

Publications

 

Publications:

Journal Articles

Accepted/In Press

Tootkaboni, M., Grahan-Brady, L., Schafer, B.W. “Geometrically non-linear behavior of structural systems with random material property: an asymptotic spectral stochastic approach.” Elsevier, Computer Methods in Applied Mechanics & Engineering (Accepted 2009)

Ádány, S., Silvestre, N., Schafer, B.W., Camotim, D. “GBT and cFSM: Two modal approaches to the buckling analysis of unbranched thin-walled members.” International Journal of Advanced Steel Construction. (Accepted 2008).

Published

(37) Sangree, R.H. and Schafer, B.W. (2009). “Experimental and Numerical Analysis of a Halved and Tabled Traditional Timber Scarf Joint.” Elsevier, Construction and Building Materials. 23 (2) 615-524 (doi:10.1016/j.conbuildmat.2008.01.015).

(36) Sangree, R.H. and Schafer, B.W. (2009). “Experimental and Numerical Analysis of a Stop-Splayed Traditional Timber Scarf Joint with Key.” Elsevier, Construction and Building Materials. 37 (1) 376-385 (doi:10.1016/j.conbuildmat.2007.11.004).

(35) Sangree, R.H. and Schafer, B.W. (2008). “Field Experiments and Numerical Models for the Global Condition Assessment of Historic Timber Bridges.” ASCE, Journal of Bridge Engineering. 13 (6) 595-601. (doi:10.1061/(ASCE)1084-0702(2008)13:6(595))

(34) Moen, C.D., Igusa, T., Schafer, B.W. (2008). "Prediction of Residual Stresses and Strains in Cold-Formed Steel Members." Elsevier, Thin-walled Structures. 46 (11) 1274-1289. (doi:10.1016/j.tws.2008.02.002)

(33) Moen, C.D., Schafer, B.W. (2008). "Experiments on Cold-Formed Steel Columns with Holes." Elsevier, Thin-walled Structures. 46 (10) 1164-1182. (doi:10.1016/j.tws.2008.01.021)

(32) Caracoglia, L., Sangree, R.H., Jones, N.P., Schafer, B.W. (2008).  “Interpretation of full-scale strain data from wind pressures on a low-rise structure.” Elsevier, Journal of Wind Engineering & Industrial Aerodynamics. 96 (12) 2363-2382 (doi:10.1016/j.jweia.2008.04.001)

(31) Schafer, B.W. (2008). “Review: The Direct Strength Method of cold-formed steel member design.” Elsevier, Journal of Constructional Steel Research. 64 (7/8) 766-778

(30) Ádány, S., Schafer, B.W. (2008). “A full modal decomposition of thin-walled, single-branched open cross-section members via the constrained finite strip method.” Elsevier, Journal of Constructional Steel Research 64 (1) 12-29. (doi:10.1016/j.jcsr.2007.04.004)

(29) Chodraui, G.M.B., Shifferaw, Y., Malite, M., Schafer, B.W. (2007). “On the stability of cold-formed steel angles under compression.” Revista Escola de Minas 60 (2) 355-363.

(28) Yu, C., Schafer, B.W. (2007). “Effect of Longitudinal Stress Gradients on Elastic Buckling of Thin Plates.” ASCE, Journal of Engineering Mechanics 133 (4) 452-463. (doi:10.1061/(ASCE)0733-9399(2007)133:4(452))

(27) Yu, C., Schafer, B.W. (2007). “Simulation of Cold-Formed Steel Beams in Local and Distortional Buckling with Application to the Direct Strength Method” Elsevier, Journal of Constructional Steel Research 63 (5) 581-590. (doi:10.1016/j.jcsr.2006.07.008)

(26) Yu, C., Schafer, B.W. (2006). “Effect of longitudinal stress gradient on the ultimate strength of thin plates.” Elsevier, Thin-walled Structures. 44 (7) 787-799.

(25) Schafer, B.W., Graham-Brady, L. (2006). “Stochastic Postbuckling of Frames using Koiter’s Method.” World Scientific, International Journal of Structural Stability and Dynamics. 6 (3) 333-358.

(24) Ádány, S., Schafer, B.W. (2006). “Buckling mode decomposition of single-branched open cross-section members via finite strip method: derivation.” Elsevier, Thin-walled Structures. 44 (5) 563-584.

(23) Ádány, S., Schafer, B.W. (2006). “Buckling mode decomposition of single-branched open cross-section members via finite strip method: application and examples.” Elsevier, Thin-walled Structures. 44 (5) 585-600.

(22) Yu, C., Schafer, B.W. (2006). “Distortional buckling tests on cold-formed steel beams.” ASCE, Journal of Structural Engineering. 132 (4) 515-528. (doi:10.1061/(ASCE)0733-9445(2006)132:4(515))

(21) Schafer, B.W., Sarawit, A., Peköz, T. (2006). “Complex edge stiffeners for thin-walled members.” ASCE, Journal of Structural Engineering. 132 (2) 212-226. (doi:10.1061/(ASCE)0733-9445(2006)132:2(212))

(20) Buonopane, S.G., Schafer, B.W. (2006). “Reliability Implications of Advanced Analysis in the Design of Steel Frames.” ASCE, Journal of Structural Engineering. 132 (2) 267-276. (doi:10.1061/(ASCE)0733-9445(2006)132:2(267))

(19) Tseng, Y., Kole, T.P., Lee, J.S.H., Fedorov, E., Almo, S.C., Schafer, B.W., Wirtz, D. (2005). “How actin crosslinking and bundling proteins cooperate to generate an enhanced cell mechanical response.” Elsevier, Biochemical and Biophysical Research Communications.334 (1) 183-192. (doi:10.1016/j.bbrc.2005.05.205)  

(18) Schafer, B.W., Bajpai, P. (2005). “Stability degradation and redundancy in damaged structures.” Elsevier, Engineering Structures. 27 (11) 1642-1651. (doi:10.1016/j.engstruct.2005.05.012)

(17) Hiriyur, B.K.J., Schafer, B.W. (2005). “Yield-line analysis of cold-formed steel members.” KSSC, International Journal of Steel Structures. 5 (1) 43-54. (www.kssc.or.kr)

(16) Lamar, D., Schafer, B.W. (2004). “Structural Analysis of Historic Covered Wooden Bridges” ASCE, Journal of Bridge Engineering. 9 (6) 623-633 (doi:10.1061/(ASCE)1084-0702(2004)9:6(623)).

(15) Panorchan, P., Schafer, B.W., Wirtz, D., Tseng, Y. (2004). "Nuclear envelope breakdown requires overcoming the mechanical integrity of the nuclear lamina." ASBMB, Journal of Biological Chemistry. 279 (42) 43462-43467 (doi:10.1074/jbc.M402474200)

(14) Liu, H., Igusa, T., Schafer, B.W. (2004). “Knowledge-Based Global Optimization of Cold-Formed Steel Columns.” Elsevier, Thin-walled Structures. 42 (6) 785-801 (doi:10.1016/j.tws.2004.01.001)

(13) Schafer, B.W., McGrath, T.J. (2003). “Buried Corrugated Thermoplastic Pipe: Simulation and Design.” National Research Council, Transportation Research Record. 1849 135-143 (www.trb.org)

(12) Yu, C., Schafer, B.W. (2003). “Local Buckling Tests on Cold-Formed Steel Beams.” ASCE, Journal of Structural Engineering. 129 (12) 1596-1606. (doi:10.1061/(ASCE)0733-9445(2003)129:12(1596))

(11) Shama, A.A., Zarghamee, M.S., Ojdrovic, R.P., Schafer, B.W. (2003). “Seismic damage evaluation of a steel building using stress triaxiality.” Elsevier, Engineering Structures. 25 (3) 271-279. (doi:10.1016/S0141-0296(02)00149-9)

(10) Tseng, Y., Schafer, B.W., Federov, E., Almo, S.C., Wirtz, D. (2002). “Functional synergy of actin filament cross-linking proteins.” ASBMB, Journal of Biological Chemistry. 277 25609-25616. (doi:10.1074/jbc.M202609200)

(9) Ye, Z., Kettle, R.J., Li, L., Schafer, B.W. (2002). “Buckling Behavior of Cold-formed Zed-purlins Partially Restrained by Sheeting.” Elsevier, Thin-Walled Structures. 40 (10) 853-864 (doi:10.1016/S0263-8231(02)00029-0)

(8) Schafer, B.W. (2002). “Local, Distortional, and Euler Buckling in Thin-walled Columns.” ASCE, Journal of Structural Engineering. 128 (3) 289-299. (doi:10.1061/(ASCE)0733-9445(2002)128:3(289))

(7) Schafer, B.W., Ojdrovic, R.P., Zarghamee, M.S. (2000). “The Role of Triaxiality in Steel Moment Connections.” ASCE, Journal of Structural Engineering, 126 (10) 1131-1139. (doi:10.1061/(ASCE)0733-9445(2000)126:10(1131))

(6) Gotluru, B.P., Schafer, B.W., Peköz, T. (2000). “Torsion in Thin-Walled Steel Beams.” Elsevier, Thin-Walled Structures Journal. 37 (2) 127-145. (doi:10.1016/S0263-8231(00)00011-2)

(5) Schafer, B.W., Peköz, T. (1999). “Laterally Braced Cold-Formed Steel Flexural Members with Edge Stiffened Flanges.” ASCE, Journal of Structural Engineering. 125 (2) 118-127. (doi:10.1061/(ASCE)0733-9445(1999)125:2(118))

(4) Schafer, B.W., Peköz, T. (1998). “Cold-Formed Steel Members with Multiple Longitudinal Intermediate Stiffeners in the Compression Flange.” ASCE, Journal of Structural Engineering. 124 (10) 1175-1181. (doi:10.1061/(ASCE)0733-9445(1998)124:10(1175))

(3) Schafer, B.W., Peköz, T. (1998). “Computational Modeling of Cold-Formed Steel: Characterizing Geometric Imperfections and Residual Stresses.” Elsevier, Journal of Constructional Steel Research. 47 (3) 193-210. (doi:10.1016/S0143-974X(98)00007-8)

(2) Schafer, B.W., Grigoriu, M., Peköz, T. (1998). “A Probabilistic Examination of the Ultimate Strength of Cold-Formed Steel Elements.” Elsevier, Thin-Walled Structure. 31 (4) 271-288. (doi:10.1016/S0263-8231(98)00019-6)

(1) Schafer, B.W., Peköz, T. (1997). “The Behavior and Design of Longitudinally Stiffened Thin-Walled Compression Elements.” Elsevier, Thin-Walled Structure. 27 (1) 65-78. (doi:10.1016/0263-8231(96)00016-X)


 

Other Publications

 

Practice-oriented papers, design guides, notes for Structural Engineers

(7) Schafer, B.W. (2009). “Improvement to AISI Section B5.1.1 for Effective Width of Elements with Intermediate Stiffeners.” CCFSS Technical Bulletin. Center for Cold-Formed Steel Structures, University of Missouri Science & Technology, (February 2009 In Press)

(6) Schafer, B.W. (2008) “Design Aids and Examples for Distortional Buckling” Cold-Formed Steel Engineers Institute, Tech Note G100-08, 22 pp.

(5) Schafer, B.W. (2006) Direct Strength Method Design Guide, American Iron and Steel Institute, Washington, D.C. 171 pp.

(4) Ádány, S., Schafer, B.W. (2004). "Some Features of the European Norm for Cold-Formed Steel Design in comparison with the AISI Specification.” CCFSS Technical Bulletin. 13(1). Center for Cold-Formed Steel Structures, University of Missouri-Rolla. (campus.umr.edu/ccfss)

(3) Schafer, B.W., DiGirolamo, E., Eiler, M., Fisher, J., Lindenberg, R., Madsen, R.L., Mettler, M., Miller, T.H., Peyton, D., Polard, G., Roecker, T., Rogers, C., Shanmugam, N.E., Walker, S.H. (2003). “Accommodating Building Deflections: What every EOR should know about accommodating deflections in secondary cold-formed steel systems.” NCSEA/CASE/ASCE-SEI, Structure. April 2003. (www.structuremag.org/archives.htm)

(2) Schafer, B.W. (2002). “Three Books for Cold-Formed Steel Design.” ASCE, Journal of Structural Engineering. 128 (11) 1490. (doi:10.1061/(ASCE)0733-9445(2002)128:11(1490))

(1) Schafer, B.W. (1998). "Elastic Buckling Stress and Cold-Formed Steel Design.” CCFSS Technical Bulletin. 7(1). Center for Cold-Formed Steel Structures, University of Missouri-Rolla. (campus.umr.edu/ccfss)

Book chapters

(2) Schafer, B.W. “Thin-walled Construction” Guide to the Stability Design Criteria of Metal Structures. Ed: Ziemian, R., Ch. 13, Wiley. (to be published in 2009)

(1) Schafer, B.W. “Plates” Guide to the Stability Design Criteria of Metal Structures. Ed: Ziemian, R., Ch. 4, Wiley. (to be published in 2009)

Design Specification and Commentary sections authored

(7) Section C4.2 Distortional Buckling Strength of Columns, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

(6) Section C3.1.4 Distortional Buckling Strength of Beams, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

(5) Appendix 1, Design of Cold-Formed Steel Structural Members Using Direct Strength Method, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

(4) Section B2.3 Webs and other Stiffened Elements Under Stress Gradient, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

(3) Modifications to B4.2 Uniformly Compressed Elements with an Edge Stiffener, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

(2) Section B5.1 Effective Widths of Uniformly Compressed Stiffened Elements with Multiple Intermediate Stiffeners, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

(1) Section B5.2 Edge Stiffened Elements with Intermediate Stiffeners, North American Specification for the Design of Cold-Formed Steel Structural Members, AISI, Washington, D.C.

Historic American Engineering Record Reports

(5) Sangree, R.H., Schafer, B.W. (2003). “Taftsville Bridge: Engineering Report.” Historic American Engineering Record, National Park Service, HAER No. VT-30, 15pp. addendum

(4) Sangree, R.H., Schafer, B.W. (2003). “Contoocook Railroad Bridge: Engineering Report.” Historic American Engineering Record, National Park Service, HAER No. NH-38, 32pp. addendum

(3) Sangree, R.H., Schafer, B.W. (2003). “Morgan Bridge: Engineering Report.” Historic American Engineering Record, National Park Service, HAER No. VT-33, 37pp. addendum

(2) Lamar, D., Schafer, B.W. (2002). “Brown Bridge: Engineering Report.” Historic American Engineering Record, National Park Service, HAER No. VT-28, 43pp. addendum

(1) Lamar, D., Schafer, B.W. (2002). “Pine Grove Bridge: Engineering Report.” Historic American Engineering Record, National Park Service, HAER No. PA-586, 45pp. addendum


 

Conference Papers - Refereed

† - denotes author which presented paper at conference

* - denotes invited conference paper and presentation

** - denotes invited keynote paper and presentation

Misra, S., Reed, K.B., Schafer, B.W., Ramesh, K.T., Okamura, A. M. “Observations and Models for Needle-Tissue Interactions.” 2009 IEEE International Conference on Robotics and Automation, (Accepted)

Seif, M., Schafer, B.W. “Finite element comparison of design methods for locally slender steel beams and columns.” Proceedings of the Annual Technical Session and Meeting, Structural Stability Research Council, April, 2009. Phoenix, AZ. (Accepted)

Moen, C.D., Schafer, B.W. “Predicting the Euler Buckling Load of Columns and Beams with Holes.” Proceedings of the Annual Technical Session and Meeting, Structural Stability Research Council, April, 2009. Phoenix, AZ. (Accepted)

(58) Vieira, L.C.M., Malite, M.,Schafer, B.W.(2008). “Simplifed Models for Cross-section Stress Demands on C-Section Purlins in Uplift.” Proceedings of the Nineteenth International Specialty Conference on Cold-Formed Steel Structures. St Louis, Missouri. October 14-15, 2008. 219-234.

(57) Schafer, B.W., Zeinoddini, V. (2008). “Impact of Global Flexural Imperfections on the Cold-Formed Steel Column Curve.” Proceedings of the Nineteenth International Specialty Conference on Cold-Formed Steel Structures. St Louis, Missouri. October 14-15, 2008. 81-96.

(56) Moen, C.D., Schafer, B.W. (2008). “Simplified Methods for Predicting Elastic Buckling of Cold-Formed Steel Structural Members with Holes.” Proceedings of the Nineteenth International Specialty Conference on Cold-Formed Steel Structures. St Louis, Missouri. October 14-15, 2008. 17-32.

(55) Schafer, B.W., Sangree, R.H., Guan, Y. (2008). “Floor System Design for Distortional Buckling Including Sheathing Restraint.” Proceedings of the Nineteenth International Specialty Conference on Cold-Formed Steel Structures. St Louis, Missouri. October 14-15, 2008. 1-16.

(54) **Schafer, B.W. (2008). “Computational modeling of cold-formed steel.” CIMS 2008, Fifth International Conference on Coupled Instabilities in Metal Structures, Sydney, Australia – June 23-25, 2008. 53-60.

(53) Ádány, S., Joó, A., Schafer, B.W. “Identification of FEM buckling modes of thin-walled columns by using cFSM base functions.” CIMS 2008, Fifth International Conference on Coupled Instabilities in Metal Structures, Sydney, Australia – June 23-25, 2008. 265-272.

(52) Ádány, S., Silvestre, N., Schafer, B.W., Camotim, D. (2008). “Buckling Mode Identification of Thin-Walled Members A Comparison Between the cFSM and GBT Approaches.” CIMS 2008, Fifth International Conference on Coupled Instabilities in Metal Structures, Sydney, Australia – June 23-25, 2008. 249-256.

(51) *Moen, C., Schafer, B.W. (2008). “A General Prediction Method for Residual Stresses and Strains in Cold-Formed Steel Members.” CIMS 2008, Fifth International Conference on Coupled Instabilities in Metal Structures: Gregory J. Hancock Symposium. Sydney, Australia – June 23-25, 2008. Vol. 2. 65-72.

(50) **Moen, C., Schafer, B.W. (2008). “Elastic Buckling and Tested Response of Cold-Formed Steel Columns with Holes.” International Conference on Thin-walled Structures. Brisbane, Australia, 18-20 June 2008. 75-86.

(49) Vieira, L.C.M., Malite, M., Schafer, B.W. “Numerical Analysis of Cold-Formed Steel Purlin-Sheeting Systems.” International Conference on Thin-walled Structures. Brisbane, Australia, 18-20 June 2008. 469-476.

(48) Schafer, B.W., Sangree, R.H., Guan, Y. (2008). “Rotational restraint of distortional buckling in cold-formed steel framing systems.” International Conference on Thin-walled Structures. Brisbane, Australia, 18-20 June 2008. 461-468.

(47) Zeinoddini, V.M., Graham-Brady, L.L., Schafer, B.W. (2008). “Imperfection sensitivity and reliability using simple bar-spring models for stability.” Proceedings of the Annual Technical Session and Meeting, Structural Stability Research Council, April, 2008. Nashville, TN. 239-260.

(46) Seif, M., Schafer, B.W. (2008). “Comparison of design methods for locally slender steel columns.” Proceedings of the Annual Technical Session and Meeting, Structural Stability Research Council, April, 2008. Nashville, TN. 135-154.

(45) *Ádány, S., Silvestre, N., Schafer, B., Camotim, D. (2007). “On the Identification and Characterisation of Local, Distortional and Global Buckling Modes in Thin-Walled Members using the cFSM and GBT Approaches.” ICSAS'07 - 6th International Conference on Steel and Aluminium Structures, Oxford, UK. 24-27 July, 2007.

(44) Shifferaw, Y., Schafer, B.W. (2007). “Inelastic bending capacity in cold-formed steel members.” Proceedings of the Annual Technical Session and Meeting, Structural Stability Research Council, April, 2007. New Orleans, LA. 279-299.

(43) *Schafer, B.W. (2006). “Development and Progress in the Direct Strength Method of Cold-Formed Steel Member Design.” Proceedings of the International Symposium on Innovative Design of Steel Structures, Hong Kong, China, Ed. Ben Young, 43-62.

(42) Yu, C., Schafer, B.W. (2006). “Finite element modeling of cold-formed steel beams: validation and application.” Proceedings of the Eighteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 89-104.

(41) Schafer, B.W. (2006). “Designing cold-formed steel using the Direct Strength Method.” Proceedings of the Eighteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 475-490.

(40) Moen, C., Schafer, B.W. (2006). “Impact of holes on the elastic buckling of cold-formed steel columns with application to the Direct Strength Method.” Proceedings of the Eighteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 269-284.

(39) Chodraui, G.M.B., Shifferaw, Y., Malite, M., Schafer, B.W. (2006). “Cold-formed steel angles under axial compression.” Proceedings of the Eighteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. October 2006. 285-300.

(38) Schafer, B.W., Ádány, S. (2006). “Buckling analysis of cold-formed steel members using CUFSM: conventional and constrained finite strip methods.” Proceedings of the Eighteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 39-54.

(37)**Schafer, B.W. (2006). “Review: The Direct Strength Method of Cold-Formed Steel Member Design.” Proceedings of International Colloquium on Stability and Ductility of Steel Structures, Lisbon, Portugal, Ed. Camotim et al., Vol. 1, 49-66.

(36) Chodraui, G.M.B., Neto, J.M., Malite, M., Schafer, B.W. (2006). “On the stability of cold-formed steel members under axial compression.” Proceedings of International Colloquium on Stability and Ductility of Steel Structures, Lisbon, Portugal, Ed. Camotim et al., Vol. 2, 623-630.

(35) Moen, C., Schafer, B.W. (2006). “Stability of cold-formed steel columns with holes.” Proceedings of International Colloquium on Stability and Ductility of Steel Structures, Lisbon, Portugal, Ed. Camotim et al., Vol. 2, 697-704.

(34) Ádány, S., Joó, A., Schafer, B.W. (2006). “Approximate identification of the buckling modes of thin-walled columns by using the modal base functions of the constrained finite strip method.” Proceedings of International Colloquium on Stability and Ductility of Steel Structures, Lisbon, Portugal, Ed. Camotim et al., Vol. 1, 197-204.

(33)*Ádány, S., Silvestre, N., Schafer, B.W., Camotim, D. (2006). “Buckling Analysis of Unbranched Thin-Walled Columns using cFSM and GBT: A Comparative Study.” Proceedings of International Colloquium on Stability and Ductility of Steel Structures, Lisbon, Portugal, Ed. Camotim et al., Vol. 1, 205-212.

(32) Schafer, B.W., Ádány, S. (2006). “Modal decomposition for thin-walled member stability using the finite strip method.” SMCD 2006, May 14-17, 2006, University of Waterloo, Waterloo, Ontario, Canada.

(31)*Ádány, S., Silvestre, N., Schafer, B.W., Camotim, D. (2006). “Buckling Analysis of Unbranched Thin-Walled Columns: Generalised Beam Theory and Constrained Finite Strip Method.” Third European Conference on Computational Solid and Structural Mechanics: Solids, Structures and Coupled Problems in Engineering (ECCM-2006), Lisbon, Portugal, June 5-8, 2006.

(30) Yu, C., Schafer, B.W. “Stability of thin plates under longitudinal stress gradients.” (2006). Proceedings of the Annual Technical Session and Meeting, Structural Stability Research Council, February, 2006. San Antonio, Texas.

(29) Schafer, B.W., Ádány, S. (2005). “Understanding and classifying local, distortional and global buckling in open thin-walled members.” Proceedings of the Structural Stability Research Council Annual Stability Conference, May, 2005. Montreal, Quebec, Canada. 27-46.

(28) Ádány, S., Schafer, B.W. (2004). “Buckling mode classification of members with open thin-walled cross-sections.” Proceedings of the Fourth International Conference on Coupled Instabilities in Metal Structures, September 27-29, 2004. Rome, Italy. 467-476.

(27) Ye, Z., Kettle, R., Li, L.Y., Schafer, B.W. (2004). “Stress and Buckling of Cold-Formed Zed-Purlins Partially Restrained by Steel Sheeting.” Proceedings of the 4th International Conference on Thin-Walled Structures. Loughborough University, Leicestershire, UK. 259-264.

(26) Arwade, S.R., Schafer, B.W. (2004). “Perspectives on the Evolution of Structures: Teaching Civil Engineering History at Johns Hopkins.” Baltimore Civil Engineering History. Proceedings of the History and Heritage Track of the ASCE Civil Engineering Conference and Exposition. Baltimore, MD. 332-342.

(25) Yu, C., Schafer, B.W. (2004). “Distortional Buckling Tests on Cold-Formed Steel Beams.” Proceedings of the Seventeenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 19-46.

(24) Yu, C., Schafer, B.W. (2004). “Stress Gradient Effect on the Buckling of Thin Plates.” Proceedings of the Seventeenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 47-70.

(23) Schafer, B.W., Bajpai, P. (2004). “Stability Degradation and Redundancy in Damaged Structures.” Proceedings of the Structural Stability Research Council Annual Stability Conference, April, 2004. Long Beach, CA. 179-198.

(22) Schafer, B.W. (2003). “Cold-Formed Steel Design by the Direct Strength Method: Bye-Bye Effective Width.” Proceedings of the Structural Stability Research Council Annual Technical Session and Meeting, April, 2003. Baltimore, MD. 357-378.

(21) Buonopane, S.G., Schafer, B.W., Igusa, T. (2003). “Reliability Implications of Advanced Analysis in Design of Steel Frames.” Proceedings of the Structural Stability Research Council Annual Technical Session and Meeting, April, 2003. Baltimore, MD. 299-318.

(20) Schafer, B.W., McGrath, T.J. (2003). “Buried Corrugated Thermoplastic Pipe: Simulation and Design.” Annual Meeting of the Transportation Research Board, Washington, D.C. (CD Proceedings)

(19) McGrath, T.J., Schafer, B.W.  (2003). “Parallel Plate Testing and Simulation of Corrugated Thermoplastic Pipe.” Annual Meeting of the Transportation Research Board, Washington, D.C. (CD Proceedings)

(18)* Schafer, B.W. (2003). “Advances in Direct Strength Design of Thin-Walled Members.” Proceedings of the International Conference on Advances in Structures: Steel, Concrete, Composite and Aluminum - ASSCCA’03, June 23 - 25, 2003, Sydney, Australia. 333-340.

(17)* Buonopane, S.G., Schafer, B.W., Igusa, T. (2003). “Reliability Implications of Advanced Analysis in Design of Steel Frames.” Proceedings of the International Conference on Advances in Structures: Steel, Concrete, Composite and Aluminum - ASSCCA’03, June 23 - 25, 2003, Sydney, Australia. 547-554.

(16)* Yu, C., Schafer, B.W. (2003). “Analysis and Testing of Cold-Formed Steel Beams.” Proceedings of the International Conference on Advances in Structures: Steel, Concrete, Composite and Aluminum - ASSCCA’03, June 23 - 25, 2003, Sydney, Australia. 387-396.

(15) Schafer, B.W. (2002). “Progress on the Direct Strength Method.” Proceedings of the Sixteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 647-662.

(14) Schafer, B.W., Trestain, T. (2002). “Interim Design Rules for Flexure in Cold-Formed Steel Webs.” Proceedings of the Sixteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 145-160.

(13) Yu, C., Schafer, B.W.. (2002). “Local Buckling Tests on Cold-Formed Steel Beams.” Proceedings of the Sixteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 127-144.

(12) Schafer, B.W. (2002). “Stiffened Elements with Multiple Intermediate Stiffeners and Edge Stiffened Elements with Intermediate Stiffeners: An All New B5.” Proceedings of the Sixteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 41-52.

(11) Schafer, B.W., Hiriyur, B. (2002). “Analysis of Sheathed Cold-Formed Steel Wall Studs.” Proceedings of the Sixteenth International Specialty Conference on Cold-Formed Steel Structures, Orlando, FL. 501-513.

(10) Schafer, B.W. (2001). “Thin-Walled Column Design Considering Local, Distortional and Euler Buckling.” Proceedings of the Structural Stability Research Council Annual Stability Conference, May 8–12, 2001. Ft. Lauderdale, FL. 419-438.

(9)* Schafer, B.W., Peköz, T. (1999). “Local and Distortional Buckling of Cold-Formed Steel Members with Edge Stiffened Flanges.” Proceedings of the Fourth International Conference on Steel and Aluminum Structures. Finland.

(8) Schafer, B.W., Peköz, T. (1998). “Direct Strength Prediction of Cold-Formed Steel Members using Numerical Elastic Buckling Solutions.” Proceedings of the Fourteenth International Specialty Conference on Cold-Formed Steel Structures. St. Louis, Missouri. 69-76.

(7) Schafer, B.W., Peköz, T. (1998). “Laterally Braced Cold-Formed Steel Flexural Members with Edge Stiffened Flanges.” Proceedings of the Fourteenth International Specialty Conference on Cold-Formed Steel Structures. St. Louis, Missouri. 1-20.

(6) Schafer, B.W., Peköz, T. (1998). “Direct Strength Prediction of Cold-Formed Steel Members using Numerical Elastic Buckling Solutions.” Proceedings of the Second International Conference on Thin-Walled Structures. Singapore.

(5) Schafer, B.W., Peköz, T. (1997). “Geometric Imperfections and Residual Stresses for Use in the Analytical Modeling of Cold-Formed Steel Members.” Proceedings of the International Conference on Experimental Model Research and Testing of Thin-Walled Structures. Prague, Czech Republic. 287-302.

(4) Schafer, B.W., Peköz, T. (1996). “Design of Cold-Formed Steel Elements with Multiple Longitudinal Intermediate Stiffeners.” Proceedings of the Thirteenth International Specialty Conference on Cold-Formed Steel Structures. St. Louis, Missouri. 47-64.

(3) Schafer, B.W., Grigoriu, M., Peköz, T. (1996). “A Probabilistic Examination of the Ultimate Strength of Cold-Formed Steel Elements.” Proceedings of the Thirteenth International Specialty Conference on Cold-Formed Steel Structures. St. Louis, Missouri. 65-80.

(2) Schafer, B.W., Peköz, T. (1996). “Geometric Imperfections and Residual Stresses for Use in the Analytical Modeling of Cold-Formed Steel Members.” Proceedings of the Thirteenth International Specialty Conference on Cold-Formed Steel Structures. St. Louis, Missouri. 649-664.

(1) Schafer, B.W., Peköz, T. (1995). “The Behavior and Design of Longitudinally Stiffened Thin-Walled Compression Elements.” Proceedings of the Third International Conference on Steel and Aluminum Structures. Bogaziçi University, Istanbul, Turkey. 57-64.


 

Conference Papers – Not Refereed

- denotes author which presented at conference

* - denotes invited conference paper and presentation

** - denotes invited keynote paper and presentation

Seif, M. Schafer, B.W. " Elastic buckling finite strip analysis of the AISC sections database and proposed local plate buckling coefficients." ASCE Structures Congress, Austin, TX - 2009. (Submitted)

(36)* Schafer, B.W. (2008). “Distortional buckling: what is it and how to design against it.” Metalcon International, Baltimore, MD, October 1 - 3 2008.

(35) Khaled, A., Schafer, B.W., Brown, J.K., Eckstein, F., Kuhn, V., Bauer, J., Link, T.M., Beck, T.J. (2008). “Contribution of Local Buckling to Femoral Neck Failure in Stance and Fall Mode Simulations: An Advanced FEA Analysis of Elderly Cadaver Femur Data.” Annual Meeting of the American Society for Bone and Mineral Research in Montréal, Quebéc, Canada, September 12 - 16, 2008,

(34)* Schafer, B.W. , Sangree, R.H., Moen, C. , Seif, M., Shifferaw, Y., Zeinoddini, V., Li, Z., Vieira, L., Iuorio, O., Guan, Y. “Modeling thin-walled cold-formed steel members and systems” Proceedings of the 6th International Conference on Computation of Shell and Spatial Structures IASS-IACM 2008: “Spanning Nano to Mega”, 28-31 May 2008, Cornell University, Ithaca, NY, USA, Abel, J.F, Cooke, R. (eds.)

(33)* Schafer, B.W. (2008). “Cold-formed steel design by the Direct Strength Method.” Metalcon International, Tampa, FL, October 4-6 2006.

(32) Adany, S., Schafer, B.W. (2006). “Uncertainties in the definition of buckling of thin-walled members” IABSE Symposium, Budapest, Hungary.

(31) Sangree, R.H., Schafer, B.W. (2006). "Covered Wooden Bridges: A Modern Analysis at the System and Component Levels." ASCE Structures Congress, St. Louis, Missouri.

(30)* Ádány, S., Schafer, B.W. (2005). “Mechanics-based modal identification of thin-walled members with multi-branched cross-sections.” McMat 2005, 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials, Baton Rouge, Louisiana.

(29)* Schafer, B.W. (2005). “Cold-Formed Steel Design by the Direct Strength Method.” Mid-Atlantic Steel Framing Alliance Conference, May 2005, Annapolis, MD. (Abstract only)

(28) Schafer, B.W., Bajpai, P. (2005). “Building Structural Safety Decision-Making for Severe Unforeseen Hazards.” Proceedings of 2005 NSF DMII Grantees Conference, Scottsdale, Arizona.

(27) Lee, T., Schafer, B.W., Loveridge, N., Reeve, J., Beck, T.J. (2005). “Finite strip analysis in the assessment of local buckling capacity of the femoral neck.” Meeting of the Orthopedic Research Society. Washington, D.C., Feb. 20-23.

(26) Ádány, S., Yu, C., Schafer, B.W. (2005). “Local and Distortional Buckling Resistance of Cold-Formed Steel Beams: Eurocode 3 in the light of (i) Experimental Results and (ii) Other Design Codes.” Eurosteel Conference on Steel and Composite Structures, 8 to 10 June 2005 in Maastricht, The Netherlands

(25) Schafer, B. W. and Arwade, S. R. (2004). “Mechanical properties of random networks.” 17th ASCE Conference on Engineering Mechanics. Newark, DE, June 13-16, 2004.

(24) Lee, T., Schafer, B.W., Daphtary, M.M., Beck, T.J. (2004). “Geometric Effects That Occur With Ageing And Osteoporosis Have An Impact On The Local Buckling Capacity Of Bone At The Femoral Neck.” American Society for Bone and Mineral Research, Seattle Washington.

(23) Schafer, B.W., Arwade, S.R. (2004). “Mechanical Properties of Random Networks.” Annual ASCE-Engineering Mechanics Division meeting, Newark, DE.

(22) Schafer, B.W. (2004). “Integrating Numerical Methods into the Design of Thin-walled Members.” American Society of Civil Engineering, Structures Congress, Committee on Compression and Flexural Members, Nashville, TN.

(21) Liu, H., Schafer, B.W., Igusa, T. (2004). “Cold-formed Steel Member Cross-section Shape Optimization by Knowledge-Based Global Optimization Method.” American Society of Civil Engineering, Structures Congress, Nashville, TN.

(20)* Schafer, B.W. (2004). “Local buckling design without effective width: new developments in the building industry.” Committee A2C06 Culverts and Hydraulic Structures, Annual Meeting of the Transportation Research Board, Washington, D.C.

(19)* Schafer, B.W. (2003). “Coming Soon: A Simpler, Faster, Cold-Formed Steel Design.” American Society of Civil Engineers, National Conference, Nashville, TN.

(18) Bajpai, P., Schafer, B.W. (2003). “Progress Towards Structural Design for Unforeseen Catastrophic Events.” ASME National Congress. Washington, D.C.

(17) Graham-Brady, L., Schafer, B.W., Li, J. (2003). “Analysis of Post-Buckling Behavior of Beam-Column Structures via Stochastic Finite Elements.” Annual ASCE-Engineering Mechanics Division meeting, Seattle, WA.

(16) Arwade, S.R., Schafer, B.W. (2003). “Network Models.” U.S. National Congress on Computational Mechanics. Albuquerque, NM.

(15) Liu, H., Igusa T. and Schafer, B. W. (2003). "A Comparison Between Classifier Model and Genetic Algorithm on Cold-formed Steel Column Global Optimization." Genetic and Evolutionary Computation Conference 2003, Graduate Student Workshop, July, Chicago, IL.

(14) Igusa, T., Liu, H., Schafer, B.W., Naiman, D.Q. (2003). “Bayesian classification trees and clustering for rapid generation and selection of design alternatives.” NSF, Design, Manufacturing, and Industrial Innovation Research Conference.

(13)* Tseng, Y., Schafer, B.W., Federov, E., Almo, S.C., Wirtz, D. (2003). “Functional synergy of actin cross-linking proteins.” Annual Meeting of the BioPhysical Society, San Antonio, TX.

(12) Lamar, D. Schafer, B.W. (2003). “Engineering Analysis of Covered Wooden Bridges from the HAER Summer 2002 Project.” The Preservation Education Institute, National Conference: Best Practices, Care and Repair of Covered Bridges, Windsor VT.

(11) Schafer, B.W. (2003). “Coming Soon: A Simpler, Faster, Cold-Formed Steel Design.” American Society of Civil Engineers, Structures Congress, Seattle, WA.

(10) Wirtz, D., Tseng, Y., Schafer, B.W., Almo, S.C. (2002). “Synergy of actin crosslinking proteins.” American Society for Cell Biology, San Francisco, CA.

(9) Shama, A., Ojdrovic, R., Schafer, B., Zarghamee, M. (2002). “Role of Stress Triaxiality on the Seismic Damage of Steel Moment Frames.” Seventh U.S. National Conference on Earthquake Engineering, Boston, MA.

(8) Schafer, B.W., Graham, L. (2002). “FEM Implementation of Koiter’s Asymptotic Post-Buckling Prediction with Application to Stochastic Post-Buckling Analysis.” Annual ASCE-EMD meeting, New York, New York.

(7) Schafer, B. W., Igusa, T., Buonopane, S. G., Ellingwood, B. R. (2002). “Decision-Theoretic View of Building Codes.” NSF Conference on Manufacturing, San Juan, Puerto Rico.

(6) Schafer, B.W., Ojdrovic, R.P, Shama, A.A., Zarghamee, M.S. (2001). “Stress Triaxiality and Fracture in Welded Steel Moment Frames.” Computational Fracture & Damage Mechanics Symposium of the 6th US National Congress on Computational Mechanics, Dearborn, MI, USA, August 1-4, 2001

(5) Schafer, B.W. (2001). “Experiments on Braced Thin-Walled Cold-Formed Steel C and Z Beams in Flexure.” Recent Advances in Stability of Structural Components and Systems combined ASCE-EMD and ASME Summer Conference. San Diego, California.

(4) Schafer, B.W. (2001). “Direct Strength Prediction of Thin-Walled Beams and Columns.” Recent Advances in Stability of Structural Components and Systems combined ASCE-EMD and ASME Summer Conference. San Diego, California.

(3) Ojdrovic, R.P., Schafer, B.W., Zarghamee, M.S. (2000). “Fracture and the Role of Triaxiality for Steel Structures.” ASCE-SEI 2000 Structures Congress. Philadelphia, Pennsylvania..

(2) Peköz, T.P., Schafer, B.W., Kim, Y. (1999). “CUFSM and a Fresh Look at the AA (Aluminum Association) Specification.” Workshop on Research and Design for Aluminum Structures, Ithaca, New York.

(1) Schafer, B.W., Peköz, T. (1997). “Characterizing Imperfections for Computational Models.” Aluminum Association Workshop on Research and Design for Aluminum Structures, Ithaca, New York.

 

last edited on 04/10/09

 

 

 

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