Cynthia Zingale
czingale@jhu.edu
Research Interests
Material failure, brittle materials, concrete, porous material, high strain rate loading, impact loads, multi-scale modeling, time-dependent material properties in a Finite Element framework.
Research Summary:
I am creating a two-dimensional, plane strain computational model to predict the results of high-strain-rate loading on a brittle material. These materials have preexisting flaws, like small slits and pores, from which cracks propagate. Utilizing the crack growth relation observed by Sammis and Ashby (1986), I hope to make a program to predict the material strength due to loading and crack growth from pores. This work builds on the program of Paliwal and Ramesh (2008), which used the crack growth relation of Ashby and Hallam (1986) to predict crack growth from slit cracks and subsequent loss of material strength. One goal is to compare both flaw types and determine ranges of flaw type and flaw size dominance. The ultimate goal is to find a relationship between the material ultimate strength, material properties, flaws, and the loading conditions and to apply this relationship to a finite element framework.
Educational Background:
Ph.D. Candidate, Civil Engineering, Johns Hopkins University
Modeling Complex Systems (MCS) IGERT Trainee
B.S, Civil and Environmental Engineering, Bucknell University, 2007
Teaching Experience
Dynamics Teaching Lab |
Spring 2007 |
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- Conducted a lab session for undergraduate students in Dynamics. Students took measurements of a car engine by hand and with an oscilloscope to make dynamic calculations. I then graded the lab reports written by the students.
Honors & Awards
Integrative Graduate Education & Research Education (IGERT) Traineeship |
8/2008 - Present |
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- Traineeship funded by the National Science Foundation for interdisciplinary graduate studies. Education objective is to conduct research by modeling paradigms and techniques through science-based coupling of models and parameterizations.
Tau Beta Pi Engineering Honor Society |
Fall 2005 |
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- Class of 2007 Secretary - planned member events; selection criteria: character and academic performance
Chi Epsilon Civil Engineering Honor Society |
Spring 2006 |
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- Class of 2007 Vice President; selection criteria: academic performance
Publications
Conference Paper
Graham-Brady, L., & Zingale, C. (2009). Strength Variability in Brittle Materials with Randomly Occurring Flaws. 10th International Conference on Structural Safety and Reliability, Osaka, Japan.
Conference Presentations
“Materials Under Impact – Predicting Weakness,” NSF Principal Investigators Meeting – Poster Session," Alexandria, VA, May 15-17, 2009.
Graham-Brady, L. & Zingale, C. “Analysis of Local Strain-Rate-Dependent Strength in Brittle Materials with Penny Shaped Cracks and Pores,” 10th U.S. National Congress on Computational Mechanics, Columbus, OH, July 15-17, 2009.