Prediction of Failure in Thin-walled Hemispherical GRP Dome subjected to Static Internal Pressure based on a Failure Factor

摘要

Failure analysis of one-ply thin-walled hemispherical GRP dome internally pressurized was checked via analytical approach and finite element simulations using ABAQUS and MATLAB software. Tsai-Wu failure criterion was employed during analysis. The failure factor against changes of dome's geometrical parameters was investigated. Subsequently, laminated hemispherical GRP dome failure behavior was theoretically analyzed using MATLAB software. During the analysis some geometrical parameters were assumed to be constant. Moreover, symmetrical laminations were taken into account. The Tsai-Wu failure factor was checked based on changes of applied internal pressure, ply thickness, dome's internal radius and ratio of dome's internal radius over ply thickness. The behavior was determined to be linear and quadratic both.