Technical Paper
Simulation of Self-Pierced Riveting Process on Aluminum Sheet/Cast jointing using Smoothed Particle Galerkin Method
2024-04-09
2024-01-2069
Abstract: Vehicle weight reduction is a popular research topic in automobile industry to achieve high efficiency and cost-effectiveness vehicles. Self-piercing rivets (SPR) are one of important joining approaches in light weight vehicle design. Numerical simulation of the riveting process could significantly boost design efficiency by reducing trial-and-error experiments. The traditional Finite Element Method (FEM) with element erosion cannot capture the large plastic deformation and complex failure behaviors in SPR process. Smoothed Particle Galerkin Method (SPG) is a genuine meshless method which is established basing on Galerkin weak form. SPG method uses a novel bond-based failure mechanism to keep the conservation of mass and momentum during material failure process. In this study, a combined FEM and Smoothed Particle Galerkin (SPG) approach was utilized to join sheet Aluminum 5754 and Cast aluminum Aural-2 using a full three-dimensional (3D) model in LS-DYNA/explicit.