多層円筒容器の塑性変形における解の分岐

概要

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In the bifurcation analysis of the multilayered cylindrical pressure vessel, it has been assumed that the adjacent layer deforms continuously. The condition necessary for the solution of the incremental boundary value problem was also the continuous deformation. However, the conventional analysis may not be suitable when the slip between the layers of the multilayered cylindrical pressure vessel is taken into consideration. In this study, we propose the bifurcation analysis method of the multilayered cylindrical pressure vessel including the slip between the layers. For the simplicity and the lower-limit solution, we assumed a frictionless slip between the layers. With this assumption, the conventional analysis method can be easily extended. However, the plastic instability of multilayered cylindrical pressure vessel obtained by the proposed bifurcation analysis showed a significant difference from that by the conventional method.
社団法人日本機械学会の論文
1994-08-25