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A general framework for the numerical solution of problems in finite elasto-plasticity

✍ Scribed by Panayiotis Papadopoulos; Jia Lu

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
960 KB
Volume
159
Category
Article
ISSN
0045-7825

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✦ Synopsis

This article discusses a general framework for the analysis of initial/boundary-value problems of rate-independent finite elasto-plasticity based on the theory of Green and Naghdi. A constitutive model is developed within the context of the above theory employing generalized measures of Lagrangian strain and work-conjugate measures of stress. Computational implications of the proposed formulation are discussed in conjunction with an implicit time integrator for the differential/algebraic equations of plastic flow. Representative numerical simulations demonstrate the applicability and predictive capacity of the model in the presence of large plastic deformations.

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Quadrilateral elements for the solution
Quadrilateral elements for the solution of elasto-plastic finite strain problems
✍ JosΓ© M. A. CΓ©sar de SΓ‘; Pedro M. A. Areias; Renato M. Natal Jorge πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 370 KB πŸ‘ 1 views

## Abstract In this paper two plane strain quadrilateral elements with two and four variables, are proposed. These elements are applied to the analysis of finite strain elasto‐plastic problems. The elements are based on the enhanced strain and B‐bar methodologies and possess a stabilizing term. The