The presenting work tends to compare the dynamic effect of the self-piercing riveted (SPR) connection with mechanical clinched connection of the same material combination. The substrates used in this investigation are aluminum alloy AA5182-O and deep drawing steel DX51D+Z. The static, dynamic behaviors and the failure modes of the SPR and the clinching connections are characterized by lap-shear, cross-tensions and coach-peel tests. Influence of the strain-rate dependent mechanical behavior of the substrates on the joints is examined, which helps improve the prediction of energy absorption of the joints under impact loading.Considering the realistic baking process in painting shop, the deforming and hardening effects on the SPR and the clinching joints induced by baking are also studied. The specimens are heated to 180°C for 30 minutes in the oven and cooled down in the air. The SPR and the clinching joints before and after the baking process are compared in terms of the mechanical behavior.
Comparative Study of Dissimilar Materials Joints
2019
Conference paper
English
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