How to simplify return-mapping algorithms in computational plasticity: Part 1-main idea

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F15%3A86096948" target="_blank" >RIV/61989100:27740/15:86096948 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
How to simplify return-mapping algorithms in computational plasticity: Part 1-main idea
Original language description
An improved implicit return-mapping scheme for nonsmooth yield surfaces is suggested in this paper. It is based on a subdifferential formulation of the flow rule that does not require special treatment at singular points (apices, edges, etc.). Although the flow direction is multivalued in such a case, it is shown that the suggested scheme leads to solving a unique system of nonlinear equations similarly as for smooth yield surfaces. Improved return-mapping schemes of several elastoplastic models containing nonassociative plastic flow rules and nonlinear isotropic hardening laws are introduced together with the corresponding consistent tangent operators.
Czech name
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Czech description
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Project
<a href="/en/project/ED1.1.00%2F02.0070" target="_blank" >ED1.1.00/02.0070: IT4Innovations Centre of Excellence</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015
ISBN
978-84-944244-6-5
ISSN
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e-ISSN
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Number of pages
12
Pages from-to
843-854
Publisher name
International Center for numerical methods in Engineering (CIMNE)
Place of publication
Barcelona
Event location
Barcelona
Event date
Sep 1, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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