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A Quantized Crystal Plasticity Finite Element Model for Stress-Strain Response of Nanocrystalline Metals
 

Summary: A Quantized Crystal Plasticity Finite Element Model for Stress-Strain
Response of Nanocrystalline Metals
L. Li 1
, M.G. Lee 2
, P.M. Anderson 1
, E. Bitzek3
, P.M. Derlet3
, H. Van Swygenhoven3
1. Department of Materials Science and Engineering, The Ohio State University,
Columbus, Ohio 43210, USA
2. Korea Institute of Machinery & Materials, Changwon-city, Kyungnam 641-010 South
Korea
3. Paul Scherrer Institute, Villigen-PSI, CH 5232, Switzerland
Keywords: Nanocrystalline metal, Stress-strain response, Quantized crystal plasticity,
FEM
Abstract
Nanocrystalline metals have distinctive stress-strain features compared to polycrystals
of conventional grain size. Distinguishing features include a large flow stress,
extraordinary initial hardening, and relatively large strain before fully plastic flow is
developed. Nanocrystals are also intriguing since mechanistically, there is little

  

Source: Anderson, Peter M. - Department of Materials Science and Engineering, Ohio State University

 

Collections: Materials Science