2212 静的及び衝撃荷重負荷時の段付き重ね合わせ接着継手のFEM解析(J10-1 接着界面強度評価,J10 締結・接合部の力学とプロセス)

概要

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Stress distributions of stepped-lap adhesive joints subjected to static and impact tensile are analyzed using three-dimensional finite elemental method. The FEM codes employed were ANSYS for static loadings and DYNA-3D for impact loadings. The effects of Young's modulus of the adhesive, adhesive thickness, number of lapped steps, scarf angle of the adherends on the stress distributions at the adhesive interfaces were examined. As the result, it was found that the maximum value of maximum principal stress σ_1 decreased as Young's modulus of the adhesive decreased under impact loadings. The results for the joints under impact loadings ware opposite to the above results. For verification of FEM calculations, experiments to measure the strains in the joints were carried out using strain gauges. A fairly good agreement was found between the calculated and the measured results concerning the strain.
2005-09-18