Richard LeSar
Richard LeSar
Site updated:
7 September 2011

summer 2006, after spending many
years in a variety of positions at Los
Alamos National Laboratory. The photos
all show various scenes from Ghost Ranch in northern New Mexico, one of my favorite places
My research has been varied over the years, spanning from molecular solids to metals and then back to molecular systems, as shown in my resume, which is available in the link to the right.
Current research topics:
•simulation of dislocation structure and response for small-scale and nanotwinned materials
•development of new information technologies for concurrent design
In addition to research, I have been active in creating new educational opportunities for students at Iowa State in the study of sustainable systems, including a study-abroad course in Africa. My teaching activities include:
Teaching:
• modeling and simulation of materials
• sustainable engineering
• globalization and sustainability

Richard LeSar
Lynn Gleason Professor of Interdisciplinary Engineering and Chair
Department of Materials Science and Engineering
Ames, IA 50011
PhoneS:
Office: +1-515-294-1841
Cell: +!-515-520-1735
Fax: +1-515-294-0999
email:

Recent photo albums can be found here (password protected).

Recent Publications:
1.“Teaching Sustainability in Materials Science and Engineering,” R. LeSar, K. C. Chen, and D. Apelian, accepted for publication in the MRS Bulletin.
2.“Dislocation dynamics simulations of Bauschinger effects in metallic thin films.” C. Zhou and R. LeSar, Computational Materials Science 54, 350-355 (2012). http://dx.doi.org/10.1016/j.commatsci.2011.09.031
3.“Dislocation dynamics simulations of plasticity in polycrystalline thin films,” C. Zhou and R. LeSar, International Journal of Plasticity. http://dx.doi.org/10.1016/j.ijplas.2011.10.001
4.“Plastic deformation mechanisms of fcc single crystals at small scales,” C. Zhou, I. J. Beyerlein, and R. LeSar, Acta Materialia 59, 7673-7682 (2011). http://dx.doi.org/10.1016/j.actamat.2011.08.032
5.“Simulations of the effect of surface coatings on plasticity at small scales,” C. Zhou, S. B. Biner, and R. LeSar, Scripta Materialia 63, 1096-1099 (2010). http://dx.doi.org/10.1016/j.scriptamat.2010.08.012
6.“Discrete dislocation dynamics simulations of plasticity at small scales,” C. Zhou, S. B. Biner, and R. LeSar, Acta Materialia 58, 1565-1577 (2010). http://dx.doi.org/10.1016/j.actamat.2009.11.001
7.“Materials informatics: An emerging technology for materials development,” R. LeSar, Statistical Analysis and Data Mining 1, 372-374 (2009). http://dx.doi.org/10.1002/sam.10034
8.“Dislocation dynamics simulation of plastic anisotropy in fcc single crystals in high rate deformation,” Z. Q. Wang, I. J. Beyerlein, and R. LeSar, International Journal of Plasticity 25, 26-48 (2009). http://dx.doi.org/10.1016/j.ijplas.2008.01.006
9.“Slip band formation and mobile density generation in high rate deformation of single fcc crystals,” Z. Q. Wang, I. J. Beyerlein, and R. LeSar, Philosophical Magazine 88, 1321-1343 (2008). http://dx.doi.org/10.1080/14786430802129833
10.“The impact of obstacles on dislocation patterning and stress correlations,” M. Haataja, J. M. Rickman, and R. LeSar, Physical Review B 77, 174105 (2008). http://dx.doi.org/10.1103/PhysRevB.77.174105
11.“Importance of cross slip in high rate deformation,” Z. Q. Wang, I. J. Beyerlein, and R. LeSar, Modelling and Simulation of Materials Science and Engineering 15, 675-690 (2007). http://dx.doi.org/10.1088/0965-0393/15/6/006
12.“Dislocation motion in high-strain-rate deformation.” Z. Q. Wang, I. J. Beyerlein, and R. LeSar, Philosophical Magazine 87, 2263-2279 (2007). http://dx.doi.org/10.1080/14786430601153422
13.“A parallel algorithm for 3D dislocation dynamics,” Z. Wang, N. Ghoniem, S. Swaminarayan, and R. LeSar, Journal of Computational Physics 219, 608-621 (2006). http://dx.doi.org/10.1016/j.jcp.2006.04.005
14.“Scale-free intermittent flow in crystal plasticity,” D. M. Dimiduk, C. Woodward, R. LeSar, and M. D. Uchic, Science 312, 1188-1190 (2006). http://dx.doi.org/10.1126/science.1123889
15.“Theoretical predictions of new high-performance lead-free ferroelectrics,” P. Baettig, C. Schelle, R. LeSar, U. Waghmare and N. Spaldin, Chemistry of Materials 17, 1376-1380 (2005). http://dx.doi.org/10.1021/cm0480418