کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4963840 | 1447411 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A stable P1âP1 finite element for finite strain von Mises elasto-plasticity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A stable P1âP1 finite element for finite strain von Mises elasto-plasticity A stable P1âP1 finite element for finite strain von Mises elasto-plasticity](/preview/png/4963840.png)
چکیده انگلیسی
The finite element P1âP1 is well known for being unsuitable for the simulation of incompressible material flows. In von Mises elasto-plasticity, the volume changes can become negligible when the plastic strain grows higher than the elastic strain. Thus, the material flow is nearly incompressible even if a small volumic elastic strain persists. In this context, the finite element P1âP1 leads to pressure oscillations which need to be addressed for achieving satisfactory solutions. The aim of this work is to propose a stabilized formulation without introducing new degrees of freedom or stabilization parameters as for sub-grid scale techniques. Unlike to the standard SUPG method, the stabilization depends on the time step. Examples show that a first order accuracy can be obtained for the pressure and the approach developed can be well suited for cyclic loadings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 324, 1 September 2017, Pages 537-545
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 324, 1 September 2017, Pages 537-545
نویسندگان
E. Feulvarch, J.-C. Roux, J.-M. Bergheau, P. Gilles,