This paper a new simple numerical method to predict burst pressures of Alloy 600 steam generator tubes with multiple through-wall cracks, based on the stress-modified fracture strain damage model with stress reduction technique. To validate the new method, simulated results using the proposed method are compared with thirty-on published test data of Alloy 600 thin plates and tubes with single or multiple through-wall cracks. Simulated results showing that predicted loads are within 10% of experimentally-measured ones for all cases considered. Moreover, a parametric study is performed to investigate the interaction effect of two axial surface cracks in Alloy 600 steam generator tubes under internal pressure.
Ductile Failure Simulation to Predict Burst Pressures of Steam Generator Tubes With Multiple Axial Cracks
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Lee, H, Kim, NH, Kim, Y, Kim, JS, & Kim, JW. "Ductile Failure Simulation to Predict Burst Pressures of Steam Generator Tubes With Multiple Axial Cracks." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 1A: Codes and Standards. Paris, France. July 14–18, 2013. V01AT01A067. ASME. https://doi.org/10.1115/PVP2013-98145
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