会議発表論文 Evaluation of Adhesive Strength Based on the Intensity of Singular Stress Field of Single Lap Joint

Li, R.  ,  Noda, N.A.  ,  Sano, Y.  ,  Miyazaki, T.  ,  Iida, K.  ,  Takase, Y.

4pp.99 - 103 , 2016-08 , Laboratory Soete – Ghent University
ISSN:2294-7868
内容記述
In this study, the adhesive strength for single lap joint is investigated based on the intensity of singular stress field. First, the critical intensity of singular stress at the adhesive dissimilar joint is calculated by using finite element method (FEM) based on the experimental result. It is found that the adhesive strength can be expressed as the critical intensity of singular stress field. Then, a suitable evaluation method of adhesive strength is investigated focusing on the intensity of singular stress field. The effect of specimen geometry on the intensity of singular stress is considered. The results show that the intensity of singular stress field decreases with increasing the adherend thickness, the minimum intensity of singular stress can be obtained when the adherend thickness is large enough. The results of the deformation angle at the interface corner edge show a similar trend as in intensity of singular stress field, and the minimum deformation angle can be obtained when the adherend thickness is large enough. The usefulness of the method is investigated focusing on the deformation angle at the interface corner edge.
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http://ds.lib.kyutech.ac.jp/dspace/bitstream/10228/5733/1/FFW4_99.pdf

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