Experimental and numerical investigation of metal-polymer riveted joints

Abstract

Abstract This paper presents the modeling and analysis of the joints of metal inserts with polyamide 6 using the injection technique. Based on the experiments carried out, modeling and numerical calculations of the joints were performed for various joint configurations. The metal parts made of DS04 steel have holes. The holes are filled with polyamide 6 (PA6) by injection molding and both components are joined, resulting in a riveted joint. As part of the work, the steel / PA6 riveted joints were tested in a uniaxial tensile test. The main objective was to investigate the strength of the riveted joint as a function of the positioning and the number of rivets. A focus of the work was the numerical modeling of both the material behavior of PA6 and the riveted joint itself. The experiments showed that the polymer-metal joint with less than three rivets is destroyed by shear in the rivets. For a joint consisting of three rivets, the failure was in the rectangular polymer part. For the joint with three rivets, the maximum value of the breaking force was obtained. Similar values were obtained from numerical calculations using Abaqus software.