Estimation of Disk Burst Pressures Using Limit Analysis Collapse Loads

Abstract

Jones and Holliday 1 recently reported simulations of clamped circular disks employing a continuum finite element method and elastic/plastic material models. An interesting conclusion of that work is that using a small strain small deflection elastic perfectly plastic model (SSSD EPP in the notation of 1) is a conservative way to estimate burst pressures. Limit analysis-based closed-form expressions for collapse loads of clamped uniformly loaded circular plates exist in the literature. The purpose of the present note is to compare these expressions to the limit load results obtained numerically in 1.