段付き重ね合わせ接着継手の引張せん断負荷に対する強度予測

概要

論文の詳細を見る
Strength of the stepped-lap bonded joint under tensile shear loading is investigated both analytically and experimentally. The joint used in this study consists of adherends of carbon steel and adhesive of epoxy resin. The strain and stress distribusions are analyzed by applying finite element method on the assumption of elastic deformation. The stress distributions is butt and lap sections are varied remarkably on both edges of steps. The joint strength is calculated by applying strength laws of three kinds of equation to the stress distributions of corresponding parts in the joint. It was predicted that the strength was smaller at the edge of butt section than at lap section in every step corners. The calculated strain distribution and strength of stepped-lap joint coincided approximately with the experimental ones. On experimental stress-strain curves of joint, however, it was observed that the joint was completely broken with the increase of load after the initial fracuture occerred at the edges of butt section.
一般社団法人日本機械学会の論文
1989-01-25