衝撃荷重下における構造用エポキシ系接着剤を用いた接着継手の有限要素応力解析

概要

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In order to study a strength of adhesive joint, a joint strength of specimen, which consists of steel pin and color bonded by structural adhesive used in the previous study, is experimentally evaluated in a wide range of deformation rate by using an INSTRON-type material testing machine and a split Hopkinson pressure bar apparatus. A finite element simulation with the previously-proposed three dimensional constitutive model is performed under an impact loading condition. It is shown that the FE simulation used here is valid for a prediction of the impact deformation behavior of the adhesively bonded joint by comparing with the experimental result. A stress distribution of the adhesive layer in the pin-color specimen under an impact shear load is numerically studied. Finally, effects of the mechanical propoerties of the adhesive and the adhesive thickness on the stress distribution is clarified.
2009-09-25