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Article Dans Une Revue Finite Elements in Analysis and Design Année : 2023

Tangent space Data Driven framework for elasto-plastic material behaviors

Résumé

This paper describes the use of the new paradigm Model-Free Data Driven Computational Mechanics for solving elasto-plastic evolutionary problem. A data driven, variational formulation dedicated to elasto-plastic, quasi static boundary problems, using tangent operator and transition rules based on threshold laws, ready to be implemented into existing finite element software packages, is presented. In order to enhance precision, a sampling technique based on Gaussian distribution is presented. Several representative test cases for elastoplastic materials will also be presented, followed up by a discussion about accuracy, convergence properties and some practices adopted to enhance the performance of this new kind of solver.
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Dates et versions

hal-04661738 , version 1 (25-07-2024)

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Duc Khai Nguyen Pham, Nawfal Blal, Anthony Gravouil. Tangent space Data Driven framework for elasto-plastic material behaviors. Finite Elements in Analysis and Design, 2023, 216, ⟨10.1016/j.finel.2022.103895⟩. ⟨hal-04661738⟩
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