Finite element analysis for joining glass fiber reinforced plastic and aluminium alloy sheets

Cho, Hae-Yong; Kim, Dongbum

doi:2015.33.2.78

J Weld Join > Volume 33(2); 2015 > Article

Research Paper

Journal of Welding and Joining 2015;33(2):78-84.
DOI: https://doi.org/10.5781/JWJ.2015.33.2.78 Published online April 30, 2015.

Finite element analysis for joining glass fiber reinforced plastic and aluminium alloy sheets

Hae-Yong Cho^*, Dongbum Kim^**

Correspondence: Hae-Yong Cho,
Email: hycho@cbnu.ac.kr

Abstract

Self-piercing rivet(SPR) is mechanical joining methods and which can be joining dissimilar materials. Unlikeconventional riveting, SPR also needs no pre-drilled holes. During plastically deformation, SPR pierces upper sheet and joins it to under sheet. SPR has been mainly applied to the joining the automobile body and some materials, such as glass fiber reinforced polymer and aluminum alloy, which represent the sheet-formed materials for lightweight automobile. Glass fiber reinforced plastic(GFRP) has been considered as a partial application of the automobile body which is lighter than steels and stronger than aluminium alloys. It is needed SPR to join Al alloy sheets and GFRP ones. In this paper, in order to design the rivet and anvil, which are suitable for GFRP, the joinability was examined through simulations of SPR joining between GFRP and Al alloy sheets. For this study, AutoCAD was used for the modeling and the simulated using commercial FEM code DEFORM-2D. The simulated results for SPR process joining between GFRP and Al alloys were confirmed by the same conditions as experimental trials.

Key Words: Self-Piercing rivet, Dissimilar materials, Finite element method, Glass fiber reinforced plastic (GFRP)