OS0506 CFRP締結時の軸・孔側面接触によるゆるみ進展と応力への影響(OS5-1 健全性評価・故障診断)

概要

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In this paper, effect of the contact of holes side and bolt shank to the loosening behavior is analyzed by the contact analysis between bolt, nut and clamed component. To fastening the CFRP to the conventional structure, mechanical fastening method like bolt nut joint is desired because of the maintenance. However, because of the low compressive strength of CFRP, fastening force becomes low in order to prevent failure of CFRP at the bolted joints. Therefore, it is easy to break at around the bolt holes because of the contact force between bolt holes and the bolt shank. Moreover, loosening process of the bolted joint is highly effected by the high contact force. Then, in this study, to make clear the effects on the loosening process and the stress by the contact of CFRP hole and bolt shank in CFRP/steel plate bolted joint, three-dimensional FEM analysis was conducted.
社団法人日本機械学会の論文
2009-09-26