Simulation of Lueders bands using regularized large strain elasto-plasticity
Authors:
- M. Mucha,
- B. Wcisło,
- J. Pamin
Abstract
This paper deals with the numerical simulation of an instability phenomenon called Lueders bands with two regularized material models: viscoplasticity and gradient-enhanced plasticity. The models are based on large strain kinematics and temperature-dependence is incorporated. The Huber–Mises–Hencky yield conditionand multi-branch hardening are employed. After a brief presentation of the constitutive description, test computations are performed using AceGen and AceFEM symbolic packages for Wolfram Mathematica. The first benchmark is a rectangular tensile plate in plane strain isothermal conditions. For the viscoplastic model, simulation results for different values of viscosity, loading duration and enforced displacement are compared. For the gradient model different internal lengths are used. Mesh sensitivity of the results and the influence of boundary conditions are also examined. Next to the Lueders-type response to a softening-hardening yield strength function, an additional softening stage leading to failure is also considered. The second example concerns a bone-shape sample under tension, for which, next to mesh sensitivity and the effect of regularization, the influence of heat conduction on simulation results is evaluated.
- Record ID
- CUTc246c852aefc4c8b8750970e819460fd
- Publication categories
- ;
- Author
- Journal series
- Archives of Mechanics, ISSN 0373-2029
- Issue year
- 2021
- Vol
- 73
- No
- 1
- Pages
- 83-117
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 114-117; Bibliografia (liczba pozycji) - 48; Oznaczenie streszczenia - Streszcz. ang.; Numeracja w czasopiśmie - Vol. 73, No 1
- Keywords in English
- Lueders bands, viscoplasticity, gradient plasticity, thermo-mechanicalcoupling, parametric study
- DOI
- DOI:10.24423/aom.3647 Opening in a new tab
- URL
- https://am.ippt.pan.pl/index.php/am/issue/current Opening in a new tab
- Related project
- Analiza numeryczna propagujących się niestateczności w termoplastyczności przy dużych odkształceniach. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- License
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTc246c852aefc4c8b8750970e819460fd/
- URN
urn:pkr-prod:CUTc246c852aefc4c8b8750970e819460fd
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.