On the accuracies of numerical integration algorithms for Gurson-based pressure-dependent elastoplastic constitutive models (Q1913224)
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scientific article; zbMATH DE number 881062
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the accuracies of numerical integration algorithms for Gurson-based pressure-dependent elastoplastic constitutive models |
scientific article; zbMATH DE number 881062 |
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On the accuracies of numerical integration algorithms for Gurson-based pressure-dependent elastoplastic constitutive models (English)
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24 November 1996
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A class of generalized mid-point algorithms for pressure-dependent elastoplastic models is formulated. The accuracies of the formulated generalized mid-point algorithms including the Euler backward algorithm and the one-step Euler forward algorithm are systematically analyzed against the exact solution for Gurson-based pressure-dependent elastoplastic model. The accuracies of the algorithms are assessed by means of iso-error maps. Results show that the formulated generalized mid-point algorithms are reasonably accurate in both small and large increment steps.
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volumetric strain increments
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deviatoric strain increments
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generalized mid-point algorithms
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Euler backward algorithm
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one-step Euler forward algorithm
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iso-error maps
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