FW圧力容器の最適設計(第1報)

圧力容器の構造解析と破損基準に基づく最適ドーム形状

抄録

Carbon-fiber reinforced plastics (CFRP) manufactured by the filament-winding (FW) technique have been in use in pressure vessels such as rocket motor cases. The present paper including the following one treats of the optimum design of FW pressure vessels.
First, the experimental results on stress and strain distributions of CFRP FW pressure vessels are compared with the numerical results obtained by F.E.M. and a good agreement is shown to exist between them. Secondly, referring to these evidences, the optimal dome shapes are proposed based on some kinds of failure criteria and the lamination theory, compared with the isotensoid surface. In addition, the optimal lamination ratio of the helically wound layer and the circumferencially wound layer in cylindrical part is proposed.