“…Since then, nonlinear material constitutive models and nonlinear finite element solution techniques have been continuously and successfully developed [4][5][6][7][8][9][10][11][12]. Therefore, it is possible to predict the ultimate pressure capability of the nuclear reactor containment more accurately than before by utilizing the nonlinear finite element method [13][14][15]. The Atomic Energy Council (AEC) at Taiwan, ROC has run several studies toward the failure analysis of containment structures.…”