Evaluating the strengths of thick aluminum-to-aluminum joints with different adhesive lengths and thicknesses |
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Authors: | Jae-Hyun Park Jin-Ho ChoiJin-Hwe Kweon |
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Affiliation: | Research Center for Aircraft Parts Technology, School of Mechanical and Aerospace Engineering, Gyeongsang National University, Jinju, Gyeongnam 660-701, Republic of Korea |
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Abstract: | Composite joints are often the weakest elements in composite structures. In this paper, we propose a modified version of the damage zone theory based on the yield strain ratio. We use this framework to predict failure loads for various adhesive joints. Thick aluminum-to-aluminum joint specimens with eight different adhesive lengths and four adhesive thicknesses were manufactured and tested. The strengths of different adhesive lengths could be predicted to within 15.4% using the damage zone ratio method. In addition, the strengths of joints that feature different adhesive thicknesses were predicted to within 16.3% using the damage zone ratio method. |
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Keywords: | Adhesive joint Damage zone theory Cohesive failure |
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