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Numerical analysis ...
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Wcisło, BalbinaCracow University of Technology/ Tadeusz Kościuszko University of Technology
(författare)
Numerical analysis of ellipticity condition for large strain plasticity
- Artikel/kapitelEngelska2018
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Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:4d492816-3cc3-4546-878e-e32a01d9ac98
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https://lup.lub.lu.se/record/4d492816-3cc3-4546-878e-e32a01d9ac98URI
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https://doi.org/10.1063/1.5019150DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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This paper deals with the numerical investigation of ellipticity of the boundary value problem for isothermal finite strain elasto-plasticity. Ellipticity can be lost when softening occurs. A discontinuity surface then appears in the considered material body and this is associated with the ill-posedness of the boundary value problem. In the paper the condition for ellipticity loss is derived using the deformation gradient and the first Piola-Kirchhoff stress tensor. Next, the obtained condition is implemented and numerically tested within symbolic-numerical tools AceGen and AceFEM using the benchmark of an elongated rectangular plate with imperfection in plane stress and plane strain conditions.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Pamin, JerzyCracow University of Technology/ Tadeusz Kościuszko University of Technology
(författare)
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Kowalczyk-Gajewska, KatarzynaInstitute of Fundamental Technological Research, PAN
(författare)
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Menzel, AndreasLund University,Lunds universitet,Hållfasthetslära,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Solid Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH,Technical University of Dortmund(Swepub:lu)soli-anm
(författare)
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Cracow University of Technology/ Tadeusz Kościuszko University of TechnologyInstitute of Fundamental Technological Research, PAN
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Computer Methods in Mechanics, CMM 2017 : Proceedings of the 22nd International Conference on Computer Methods in Mechanics - Proceedings of the 22nd International Conference on Computer Methods in Mechanics: Author(s)19229780735416147
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Ingår i:AIP Conference Proceedings: Author(s)19220094-243X
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