Effects of Geometry on Intensity of Singular Stress Fields at the Corner of Single-Lap Joints

This paper discusses effects of adhesive thickness, overlap length and material combinations on the single-lap joints strength from the point of singular stress fields. A useful method calculating the ratio of intensity of singular stress is proposed using FEM for different adhesive thickness and overlap length. It is found that the intensity of singular stress increases with increasing adhesive thickness, and decreases with increasing overlap length. The increment and decrement are different depending on material combinations between adhesive and adherent.

Authors:

• Yu Zhang
• Nao-Aki Noda
• Kentaro Takaishi

Keywords:

• Adhesive thickness
• Overlap length
• Intensity ofsingular stress
• Single-lap joint

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