Abstract
AbstractThe stress singularity for the excess adhesive on interface of adhensively bonded joint was investigated by using the 2-dimensional elastic boundary element method (BEM). To establish a reasonable strength evaluation method and a fracture criterion for the excess adhesive of interface in adhensively bonded joint, it is necessary to evaluate fracture parameters with various bonding conditions. Under the variations of adhensively bonded thickness (h) and diameter (d) for the excess adhesive, a stress analysis was peformed, and from the results, the stress singularity index ( ) and the stress singularity factor ( ) were calculated. The variations have a great influences on the stress singularity for the excess adhesive of interface in adhensively bonded joint, and the is reduced as the “h” and “d” increase. Key Words : Adhensively bonded joint(접착이음), Boundary element method(경계요소법), Excess adhesive(접착덧살), Stress singularity index(응력특이성지수), Stress singularity factor(응력특이성계수), Strength evaluation(강도평가), Fracture parameter(파괴인자)
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