Explicit dynamic analysis of sheet metal forming processes using linear prismatic and hexahedral solid‒shell elements
TypeArticles dans des revues avec comité de lecture
This paper proposes two linear solid‒shell finite elements for the three-dimensional modeling of thin structures in the context of explicit dynamic analysis. These solid‒shell formulations, which are extensions of their quasi-static counterparts, consist of a six-node prismatic element, denoted SHB6-EXP, and an eight-node hexahedral element, denoted SHB8PS-EXP. Both elements are formulated based on a purely three-dimensional approach, with displacements as the only degrees of freedom. To prevent various locking phenomena, a reduced-integration scheme is used along with the assumed-strain method. The resulting formulations are computationally efficient, since only a single layer of elements with an arbitrary number of through-thickness integration points is required to model 3D thin structures. Both SHB6-EXP and SHB8PS-EXP elements have been implemented into the explicit dynamic code ABAQUS, using the VUEL user-element subroutine. The performance of these elements is first assessed through a set of selective and representative dynamic elasto-plastic benchmark tests, including impact-type problems. Then, attention is directed to the simulation of deep drawing processes involving complex non-linear loading paths, anisotropic plasticity and double-sided contact. The obtained numerical results demonstrate the good performance of the SHB-EXP elements in the modeling of 3D thin structures, with only a single element layer and few integration points in the thickness direction.
Files in this item
Showing items related by title, author, creator and subject.
Efficient solid–shell finite elements for quasi-static and dynamic analyses and their application to sheet metal forming simulation WANG, Peng; CHALAL, Hocine; ABED-MERAIM, Farid (Trans Tech Publications, 2015)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 ...
Quadratic solid‒shell elements for nonlinear structural analysis and sheet metal forming simulation WANG, Peng; CHALAL, Hocine; ABED-MERAIM, Farid (SPRINGER, 2016)In this paper, two quadratic solid‒shell (SHB) elements are proposed for the three-dimensional modeling of thin structures. These consist of a twenty-node hexahedral solid‒shell element, denoted SHB20, and its fifteen-node ...
Quadratic prismatic and hexahedral solid‒shell elements for geometric nonlinear analysis of laminated composite structures WANG, Peng; CHALAL, Hocine; ABED-MERAIM, Farid (Elsevier, 2017)The current contribution proposes two quadratic, prismatic and hexahedral, solid–shell elements for the geometric nonlinear analysis of laminated composite structures. The formulation of the proposed solid–shell elements ...
Linear and Quadratic Solid-Shell Elements for Quasi-Static and Dynamic Simulations of Thin 3D Structures: Application to a Deep Drawing Process WANG, Peng; CHALAL, Hocine; ABED-MERAIM, Farid (University of Ljubljana, 2017)A family of prismatic and hexahedral solid–shell (SHB) elements, with their linear and quadratic versions, is proposed in this work to model thin structures. The formulation of these SHB elements is extended to explicit ...
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 ...