抄録
The post-buckling behavior of elastic-plastic arches is analyzed numerically using a discrete model that is composed of rigid finite bars connected with nonlinear springs. These springs represent a history-dependent elastic-plastic response of the arch material, which obeys a power hardening law combined with the kinematic hardening rule for reversed plasticity. The effect of reversed plasticity, which occurs during and after snap-through, on the load-carrying capacity is discussed for some arches. The conventional analysis neglecting reversed plasticity is found to give significantly smaller deflection than the present analysis during and after snap-through.
