Efficient solid–shell finite elements for quasi-static and dynamic analyses and their application to sheet metal forming simulation
TypeArticles dans des revues avec comité de lecture
Thin structures are commonly designed and employedin engineering industries to save material, reduce weight and improve the overall performance of products. The finite element (FE) simulation of such thin structural components has become a powerful and useful tool in this field. For the last few decades, much attention and effort have been paid to establish accurate and efficient FE. In this regard, the solid–shell concept proved to be very attractive due to its multiple advantages. Several treatments are additionally applied to the formulation of solid–shell elements to avoid all locking phenomena and to guarantee the accuracy and efficiency during the simulation of thin structures. The current contribution presents a family of prismatic and hexahedral assumed-strain based solid–shell elements, in which an arbitrary number of integration points are distributed along the thickness direction. Both linear and quadratic formulations of the solid–shell family elements are implemented into ABAQUS static/implicit and dynamic/explicit software to model thin 3D problems with only a single layer through the thickness. Twopopular benchmark tests are first conducted, in both static and dynamic analyses, for validation purposes. Then, attention is focused on a complex sheet metal forming process involving large strain,plasticity and contact.
Showing items related by title, author, creator and subject.
Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation SALAHOUELHADJ, Abdellah; ABED-MERAIM, Farid; CHALAL, Hocine; BALAN, Tudor (Springer, 2012)This paper proposes an extension of the SHB8PS solid–shell finite element to large strain anisotropic elasto-plasticity, with application to several non-linear benchmark tests including sheet metal forming simulations. ...
Hardening effects on strain localization predictions in porous ductile materials using the bifurcation approach CHALAL, Hocine; ABED-MERAIM, Farid (Elsevier, 2015)The localization of deformation into planar bands is often considered as the ultimate stage of strain prior to ductile fracture. In this study, ductility limits of metallic materials are predicted using the Gurson–Tverga ...
RACZ, Sever-Gabriel; KHAN, Salim; CHALAL, Hocine; ABED-MERAIM, Farid; BALAN, Tudor (Francisco Chinesta , Yvan Chastel and Mohamed El Mansori, 2011)Within the framework of sheet metal forming, the importance of hardening models for springback predictions has been often emphasized. While some specific applications require very accurate models, in many common situations ...
On the implementation of the continuum shell finite element SHB8PS and application to sheet forming simulation SALAHOUELHADJ, Abdellah; ABED-MERAIM, Farid; CHALAL, Hocine; BALAN, Tudor (American Institute of Physics, 2011)In this contribution, the formulation of the SHB8PS continuum shell finite element is extended to anisotropic elastic-plastic behavior models with combined isotropic-kinematic hardening at large deformations. The resulting ...
Elastic-plastic analyses using the solid-shell finite element SHB8PS and evaluation on sheet forming applications SALAHOUELHADJ, Abdellah; CHALAL, Hocine; ABED-MERAIM, Farid; BALAN, Tudor (Onate, E; Owen, DRJ; Peric, D; Suarez, B, 2011)In this contribution, the formulation of the SHB8PS continuum shell finite element is extended to anisotropic elastic-plastic behavior models with combined isotropic-kinematic hardening at large deformations. The resulting ...