一様静水外圧を受けるCIRCULAR ARCHおよびRINGの弾性安定解析II

抄録

In the previous paper, nonlinear basic equations of elastic circular arches and rings subjected to uniform external hydro pressure have been introduced, and equilibrium analysis and stability analysis of circular arches with pinned ends have been presented by means of Galerkin's method. The purposes of the present paper are to investigate the equilibrium states for larger value of opening-angle of circular arches and rings, and to examine that the elastic instability can take place in either the form of symmetric snap-through or asymmetric bifurcation. In this paper, the behaviors of circular arches and rings with pined or clamped ends, which have never been obtained, are presented clearly.