Directory

Richard Alan LeSar

  • Interim Department Chair
  • Lynn Gleason Professor of Interdisciplinary Engineering
  • Materials Science and Engineering

Main Office

2220BR Hoover
Ames, IA 50011-2300
Phone: 515-294-1841
Fax: 515-294-0999




Education

  • Ph.D. Chemical Physics, Harvard University, 1981
  • A.M. Physics, Harvard University, 1977
  • B.S. Chemistry, University of Michigan, 1975

Interest Areas

  • Materials theory, modeling, and simulation
  • Dislocation-based plasticity
  • Multiscale design
  • Microstructural evolution

Brief Biography

Honors and Awards

  • Member of the Editorial Board of the Annual Reviews of Materials Research, 2001-present
  • Member of the Editorial Board on the Current Opinion in Solid State and Materials Science, 2012-present
  • Lynn Gleason Professor of Interdisciplinary Engineering, 2011

Selected Publications

Books

  • Introduction to Computational Materials Science, R. LeSar (Cambridge University Press, Cambridge, UK, 2013).

Selected Recent Publications

  1. “The feedback loop between theory, simulation and experiment for plasticity and property modeling,” T. M. Pollock and R. LeSar, submitted to Current Opinion in Solid State and Material Sciences.
  2. “Interactive visualization of APT data at full fidelity,” A. Bryden, S. Broderick, S. K. Suram, K. Kaluskar, R. LeSar and K. Rajan. Ultramicroscopy (2013).        http://dx.doi.org/10.1016/j.ultramic.2012.12.006
  3. “Teaching sustainable development in materials science and engineering,” R. LeSar, K. C. Chen, and D. Apelian, MRS Bulletin37, 449-454 (2012). http://dx.doi.org/10.1557/mrs.2012.9
  4. “Dislocation dynamics simulations of Bauschinger effects in metallic thin films.” C. Z. Zhou and R. LeSar, Computational Materials Science 54, 350-355 (2012).  http://dx.doi.org/10.1016/j.commatsci.2011.09.031
  5. “Dislocation dynamics simulations of plasticity in polycrystalline thin films,” C.  Z. Zhou and R. LeSar, International Journal of Plasticity 30-31, 185-201 (2012). http://dx.doi.org/10.1016/j.ijplas.2011.10.001
  6. “Plastic deformation mechanisms of fcc single crystals at small scales,” C. Z.  Zhou, I. J. Beyerlein, and R. LeSar, Acta Materialia 59, 7673-7682 (2011). http://dx.doi.org/10.1016/j.actamat.2011.08.032
  7. “Simulations of the effect of surface coatings on plasticity at small scales,” C. Z. Zhou, S. B. Biner, and R. LeSar, Scripta Materialia 63, 1096-1099 (2010).            http://dx.doi.org/10.1016/j.scriptamat.2010.08.012
  8. “Discrete dislocation dynamics simulations of plasticity at small scales,” C. Z. Zhou, S. B. Biner, and R. LeSar, Acta Materialia 58, 1565-1577 (2010). http://dx.doi.org/10.1016/j.actamat.2009.11.001
  9. “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
  10. “Plastic anisotropy in fccsingle 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
  11. “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
  12. “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
  13. “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
  14. “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
  15. “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
  16. “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