Journal of Science and Technology of Composites

Journal of Science and Technology of Composites

Investigation of the effect of material and geometrical parameters affecting the strength of hybrid adhesive- riveted joints

Document Type : Research Paper

Authors
Hadi Khoramishad
Sajjad Nasiri
Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
Abstract
In this paper, the influencing factors on hybrid adhesive-riveted joints were investigated. For this purpose, first a finite element model was validated based on experimental results, then the effects of influencing material and geometrical factors on the strength of the hybrid joints were studied using the explicit finite element analyses.  The numerical model was able to simulate damage in the adhesive layer and in the rivets. The results showed that in a hybrid adhesive-riveted joint, it is better to position the rivets where a minimum reduction in the adhesive joint due to the rivet holes obtained i.e. as far as possible from the joint ends. This is in contrary to the riveted joints in which placing the rivets closer to the joint ends resulted higher joint strength. In general, incorporating rivets in an adhesive joint for manufacturing a hybrid joint can result higher or lower joint strength in comparison with the adhesive joint in different conditions that were studied in this research. It should be noted that in case that a low-strength adhesive is utilized in a hybrid adhesive-riveted joint then placing the rivets closer to the joint ends can results higher strength for the joint similar to the riveted joints.
Keywords
Adhesive joint
Riveted joint
Hybrid adhesive-riveted joint
Strength
Cohesive zone model
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