Numerical method for shear bands in ductile metal with inclusions
- Los Alamos National Laboratory
A numerical method for mesoscale simulation of high strain-rate loading of ductile metal containing inclusions is described. Because of small-scale inhomogeneities, such a composite material is prone to localized shear deformation (adiabatic shear bands). The modeling framework is the Generalized Method of Cells of Paley and Aboudi [Mech. Materials, vol. 14, pp. /27-139, 1992], which ensures that the micromechanical response of the material is reflected in the behavior of the composite at the mesoscale. To calculate the effective plastic strain rate when shear bands are present, the analytic and numerical analysis of shear bands by Glimm, Plohr, and Sharp [Mech. Materials, vol. 24, pp. 31-41, 1996] is adapted and extended.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1009553
- Report Number(s):
- LA-UR-10-02661; LA-UR-10-2661; TRN: US201106%%985
- Resource Relation:
- Conference: AES-ATEMA '2010, Advances and Trends in Eng. Mat. and their Appl. ; June 27, 2010 ; Quebec, Canada
- Country of Publication:
- United States
- Language:
- English
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