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Article Dans Une Revue Finite Elements in Analysis and Design Année : 2018

A computational strategy for the modeling of elasto-plastic materials under impact loadings

Résumé

This paper presents a numerical strategy for the modeling of elasto-plastic materials under impact loadings. The bi-potential method is efficient in dealing with implicit standard materials constitutive laws, such as frictional contact. The Uzawa algorithm, based on the bi-potential method is applied to deal with the non-linearity of boundary conditions. For the non-linearity associated with materials, a Return Mapping Algorithm is applied to deal with the elasto-plastic constitutive laws. On the basis of the Updated Lagrangian formulation, we adopt a Rotationally Neutralized Objective hypothesis to describe the geometrically non-linear behavior. Equations of motion are integrated with a first order scheme. Three numerical examples are performed to verify the accuracy and to show the applicability of the proposed approach.
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Dates et versions

hal-01716918 , version 1 (25-02-2018)

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Yang-Jing Zhou, Zhi-Qiang Feng, Juan Antonio Rojas Quintero, Po Ning. A computational strategy for the modeling of elasto-plastic materials under impact loadings. Finite Elements in Analysis and Design, 2018, 142, pp.42--50. ⟨10.1016/j.finel.2018.01.003⟩. ⟨hal-01716918⟩
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