STUDY ON STRENGTH AND FAILURE MODE OF ADHESIVELY BONDED SINGLE LAP JOINTS OF COMPOSITE MATERIAL

Abstract

Abstract: In order to explore the influence of the parameters on the joint strength of adhesively bonded single lap joints, the corresponding finite element model has been constructed using ANSYS. The modified Tserpes failure criterion has been utilized to predict its joint strength. Moreover, the failure mode of the joint with each parameter was simulated visually. The results show that, the strength of the composite-to-composite adhesive joint is higher than the strength of composite-to-titanium alloy adhesive joints. With the process of lap length, lap width increasing, the strength of joint is enhanced obviously first and then decreases. And, in the static tension, the main failure mode of the composite-to-titanium alloy adhesive joint is the adhesive failure. The main failure mode of the composite-to-composite adhesive joint is mixed failure, which is characterized by the layer peeling and delamination failure of the first layer and the second layer of the composite material immediately adjacent to the adhesive layer, while partial adhesion failure occurs in the adhesive layer.

Key words: composite material, adhesively bonded single lap joints, joint strength, main failure mode

CLC Number:

TB332

YANG Ben-ning, ZHENG Yan-ping, LI Cheng, HOU Yu-liang. STUDY ON STRENGTH AND FAILURE MODE OF ADHESIVELY BONDED SINGLE LAP JOINTS OF COMPOSITE MATERIAL[J]. Fiber Reinforced Plastics/Composites, 2019, 0(2): 26-32.

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