Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)
- 2001.05a
- /
- Pages.168-171
- /
- 2001
Refined 3-D Stress Analysis of Composite Wavy-Lap Joint
복합재료 Wavy-Lap Joint의 3-D 상세 응력 해석
- Published : 2001.05.01
Abstract
Due to intrinsic load eccentricity, severe peel stress concentration occurs at both ends of the single-lap joint. To avoid load eccentricity as well as the singular tensile peel stress in the joint interface, composite wavy-lap joint is proposed. In this paper, refined 3-D stress analysis of wavy-lap joint is performed by finite element method using parallel mutifrontal solver. Analysis results show that the singular tensile peel stress concentration is totally avoided in wavy-lap joint, and that loads are more evenly transferred over the length of the joint. Therefore, the strength of wavy-lap joint is significantly higher than that of conventional single-lap joint. And it is believed that even higher strengths can be obtained by optimizing the new design configuration.
Keywords
- adhesive bonding;
- single-lap joint;
- wavy-lap joint;
- load eccentricity;
- interfacial peel stress;
- 3-D stress analysis