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professor ben schafer's thin-walled structures research group - johns hopkins university |
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professor ben schafer's thin-walled structures research group - johns hopkins university |
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Ben Schafer Professor Dept. of Civil Engineering Johns Hopkins University 208 Latrobe Hall Baltimore, MD 21218 410.516.6265 email: schafer@jhu.edu info: curriculum vitae
Note, this website is in transition. The site was actively maintained through 2013 and now has only minimal updates. For the time being the links below are being
maintained for historical use and documentation. A new web site is underdevelopment and expected in 2017.
Research Work in
the Thin-walled Structures Group
Analysis
CUFSM
- Free finite strip software for elastic buckling
CUTWP - Free software for classic
global buckling
Finite strip method research page
The constrained finite strip method (cFSM)
Generalized Beam Theory (Camotim et al.)
In-house modeling support tools
Cold-formed
steel
Cold-Formed Steel Research Consortium
Steel Diaphragm Innovation Initiative
Built-up CFS Members
AHSS CFS Members
Optimization
of thin-walled sections
NSF: Imperfections and Analysis-Based Design
Completed Projects
CFS-NEES Earthquake Engineering Research
Direct Strength Method - Beam Columns
USAID, US-Egypt CFS Midrise Housing
Sheathing Braced Design of Wall Studs Direct Strength Method for members
with holes
Inelastic bending of CFS members
Local buckling of
C's and
Z's in bending
Distortional buckling of C's and
Z's in bending
Distortional buckling of columns
Rotational restraint of sheathing
Committees and Codes
ASCE-SEI Committee on
Cold-Formed Steel
Eurocode and cold-formed steel
Hot-rolled
steel
Reliability
Advanced analysis of steel structures
Design for unforeseen catastrophic
events
Stability
Cross-section stability of structural steel
Other
Materials and Structures Work
Steel Wind Turbine Towers
GMNIA modeling of spirally welded wind turbine towers
Metallic Foam
Steel foam for structural applications
Timber
Plastic
Thin-walled thermoplastic pipe
Education
- course web sites
Solid Mechanics and Theory of
Structures
Structural Reliability People
°
Professor Ben Schafer (email)
Alumni
° Go here for full list (2013 last update)
Current Members
Research
Scientists
°
Dr. Shahab Torabian
Postdoctoral Research
Scholars
°
Dr. Deniz Ayhan
Visiting Scholars
°
No Visiting Scholars at this time
Graduate
Students
° Dave Fratamico, PhD Candidate
° Guanbo Bian, PhD Candidate
° Abdullah Mahmoud, PhD Candidate
° Fardad Haghpanah, PhD Candidate
° Hamid Foroughi, PhD Candidate
° Astrid Winther-Fischer, PhD Candidate
Visiting Student
Scholars
°
Zhen Nie (China)
Undergraduate
Researchers
° Please contact Dr. S if interested
High School Researchers
° Numbi Lutebula (Baltimore Poly)
Bio-corner:
Bio and Thin-walled Structures
Thin-walled
structures often occur in biological applications, from the meso-scale
of bone structure down to the nano-scale of cell cytoskeleton networks.
The large range of active research at Johns Hokpins in "nano" and
particularly "bio" applications affords a variety of interesting
collaborations. See Professor Schafer's vitae for research
on the stability of bones and cytoskeleton networks. Learn more about
bio related institutes that Professor Schafer is affiliated:
INBT: Institute for Nano Bio
Technology
IMMBI: Inst. for Multiscale Modeling in Biological Interactions
For students interested in
working in these cross-disciplinary areas Professor Schafer is
affiliated with NBMed, the Howard Hughes Medical Institute Graduate
Training Program at Hopkins. Current Hopkins students as well as
prospective students may apply. Students should have significant
strength and interest in computational modeling. |
What are Thin-Walled Structures? Scopus RSS Feed of Recent Papers News from the Group Thin-walled Structures Group Website (December 2016) A new Thin-walled Structures Group website is under development. For now, this legacy website is being modestly updated and maintained. The last major update came in 2010 and only minor updates have been provided subsequent to that time, with little to no updates from 2013-2016. Meanwhile, other project websites run by or related to the group are being more actively maintained, including: CFSRC, SDII, CFS-NEES, SSRC, and others.
Direct Strength Beam-Columns Year 2 (October 2013) Our research on a novel method for designing cold-formed steel beam columns when loaded with axial loads and bending simultaneously has reached an important milestone with the issuing of the year 2 report. This report, among other items, details a series of careful tests that truly explore the force-moment space of a cold-formed steel beam-column. Go here for all of the materials on the project.
Full-scale CFS-NEES Testing Underway(Summer 2013) The final experimental phase of our cold-formed steel earthquake engineering project: CFS-NEES is underway at the SEESL lab in Buffalo. Read graduate student Kara Peterman's blog for the latest updates, or check in on the live feed at the facility. We hosted the American Iron and Steel Institute Committees in July. Testing is ongoing, so far we are learning a great deal about how cold-formed steel buildings perform as a system.
Sheathing Braced Wall Design Report (February 2013) Our extensive research on sheathing-braced cold-formed steel walls has recenrly wrapped up. All of the project information is available here, or jump directly to the final report. Complete design examples are provided for the design of CFS walls that employ sheathing to successfully brace the studs. CFS-NEES Reports Posted (January 2013) Our cold-formed steel earthquake engineering research project has been busy. New research reports detailing the CFS-NEES archetype building, shear wall testing, moment-rotation behvaior of beams, and fastener-sheathing testing as well as other recent research progress are all available. Go here to learn more about the project and here to jump directly to all the great publications. US-Egypt CFS Workshop Success (December 2012) Egypt is in political turmoil. Making a difference in these times is probably asking too much from a small joint USAID/NSF research project, but for two days (9-10 December) approximately 200 Egyptian engineers, architects, builders, and manufacturers and even a few ministers from the Egyptian government met at the University of Cairo to imagine a future for Egypt that takes advantage of the latest technology: light (cold-formed) steel framing. The workshop was led by the United States and Egyptian project teams and included key participation from the United States Industrial Advisory Board. Four members of that board: George Richards (BORM), Don Allen (DSi), Nader ElHajj (Framecad), and Nabil Rahman (TSN), came to Cairo to share their experiences. Learn more.
Coupled Instabilities 2016 (December 2013) The Thin-walled Structures Group has agreed to host the Coupled Instabilities in Metal Structures conference series in 2016. More details forthcoming. CUFSM 4.05 Updated (Summer 2012) We have updated the new standalone version of CUFSM (version 4.05) now available online for free download. CUFSM 4.05 provides a sweeping expansion to the capabilities of our popular finite strip program - now the local, distortional, and global buckling loads of thin-walled members can be explored for general end boundary conditions. This expansion allows for much more difficult problems to be explored providing new insights for researchers and engineers. For more on CUFSM 4 go here, for more on FSM research go here. Advances in Cold-Formed Steel (October 2011)
CUFSM 4 Standalone Released (October 2011) We have released the new standalone version of CUFSM (version 4.04) now available online for free download. CUFSM 4.04 provides a sweeping expansion to the capabilities of our popular finite strip program - now the local, distortional, and global buckling loads of thin-walled members can be explored for general end boundary conditions. This expansion allows for much more difficult problems to be explored providing new insights for researchers and engineers. For more on CUFSM 4 go here, for more on FSM research go here.
Other Links of Interest ° American Iron and Steel Institute ° Cold-Formed Steel Engineers Institute ° Center for Cold-Formed Steel Structures (UMR) ° Virginia Tech (Cris Moen) Research Group ° University of Sydney Research Group ° McGill University Research Group ° University of Waterloo Research Group
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last updated 28.Nov.2016 - Ben Schafer, schafer@jhu.edu |
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