An application of multisurface plasticity theory: Yield surfaces of textured materials
- and others
Directionally dependent descriptions of the yield behavior of metals as determined by polycrystal plasticity computations are discrete in nature and, in principle, are available for use in large-scale application calculations employing multi-dimensional continuum mechanics codes. However, the practical side of using such detailed yield surfaces in application calculations contains some challenges in terms of algorithm development and computational efficiency. Discrete representations of yield as determined from Taylor-Bishop-Hill polycrystal calculations can be fitted or tessellated into a multi-dimensional piece-wise linear yield surface for subsequent use in constitutive algorithms for codes. Such an algorithm that utilizes an associated flow based multisurface plasticity theory has been implemented in the three dimensional EPIC code and is described in this effort.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 110726
- Report Number(s):
- LA-UR-95-3145; CONF-9509226-2; ON: DE96000064; TRN: 95:007253
- Resource Relation:
- Conference: 15. Association for the International Advancement of High Pressure & Technology international conference, Warsaw (Poland), 11-15 Sep 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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