profile. The and CTOD values with respect to applied pressure were inferred from finite J-integral element simulation results [2]. In Fig. 2 are shown the von Mises stress distribution in plate specimens for a pressure load of 600 kPa. Results for the estimated critical pressures based on and are Jc δtc given in Table 1. a) b) Fig. 2. for the pressure p = 600 kPa for specimens: a) PPR-1; b) PPR-3. σeqv Table 1. Assessed critical pressures compared with experimental results. Specimen PPR-1 PPR-3 Critical pressure experiment, kPa 900 750 – Critical pressure based upon kPa 810 725 Jc, Critical pressure based upon kPa 810 745 δtc, Conclusions Fracture mechanisms of plates, damaged by a single and multiple cracks, subjected to lateral pressure have been analyzed. In the finite element models an elastic-plastic fracture mechanics concept (EPFM) was implemented and critical pressures associated with fracture onset in the specimens were assessed based on the critical and parameters. Numerical results of fracture analyses of plate specimens Jc δc were compared with experimental results and a reasonably good agreement was observed. References Rice, J.R., 1968. A Path Independent Integral and the Approximate Analysis of Strain Concentration by Notches and Cracks. Journal of Applied Mechanics 35, 379–386. Swanson Analysis System, Inc. ANSYS User's Manual Revision 11.0, 2009. Božić, 2002. Fracture Analysis of Stiffened Panels Under Lateral Pressure, Brodogradnja, 202-212. Ž.,
profile. The J-integral and CTOD values with respect to applied pressure were inferred from finite element simulation results [2]. In Fig. 2 are shown the von Mises stress distribution in plate specimens for a pressure load of 600 kPa. Results for the estimated critical pressures based on Jc and δtc are given in Table 1. a) b) Fig. 2. σeqv for the pressure p = 600 kPa for specimens: a) PPR-1; b) PPR-3. Table 1. Assessed critical pressures compared with experimental results. Specimen PPR-1 PPR-3 Critical pressure – experiment, kPa 900 750 Critical pressure based upon Jc, kPa 810 725 Critical pressure based upon δtc, kPa 810 745 Conclusions Fracture mechanisms of plates, damaged by a single and multiple cracks, subjected to lateral pressure have been analyzed. In the finite element models an elastic-plastic fracture mechanics concept (EPFM) was implemented and critical pressures associated with fracture onset in the specimens were assessed based on the critical Jc and δc parameters. Numerical results of fracture analyses of plate specimens were compared with experimental results and a reasonably good agreement was observed. References Rice, J.R., 1968. A Path Independent Integral and the Approximate Analysis of Strain Concentration by Notches and Cracks. Journal of Applied Mechanics 35, 379–386. Swanson Analysis System, Inc. ANSYS User's Manual Revision 11.0, 2009. Božić, Ž., 2002. Fracture Analysis of Stiffened Panels Under Lateral Pressure, Brodogradnja, 202-212.
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