混合モード下における薄板接着継手強度評価法の開発

概要

論文の詳細を見る
Adhesively bonded joints will fail under comparatively low stress by addition of unexpected peel loads to shear loads. Thus, it is essential to evaluate the strength of adhesively bonded joints under the mixed mode conditions consisting of peel loads and shear loads. However, evaluation methods for thin adherends under mixed mode conditions have not been establised. In this study, a biaxial loading apparatus and multilayer specimens are developed to evaluate static strength and fatigue strength of adhesive joints. This method is applied in adhesive tests of metallic coatings. As a result of the evaluation tests, the static fracture standard can be described by a quarter-ellipse which is subjected to pure shear strength and pure peel strength. The fatigue strength can be predicted if the static fracture standards and the voids caused by peel loads are considered. The adhesion strength of galvanized steel under the mixed mode can be evaluated in liquid nitrogen.
社団法人日本機械学会の論文
1995-04-25