Elastic-Plastic Fracture Assessment for the Cracks Emanating from a Circular Hole under a Biaxial Loading Condition
作者： Z X Wang , R Liu
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.602-604.2241
关键词: Fracture (geology) 、 Limit load 、 Structural engineering 、 Fracture mechanics 、 Stress (mechanics) 、 Failure assessment 、 Materials science 、 Stress–strain curve 、 Transverse plane 、 Crack closure
摘要: In this study, elastic-plastic stress and strain fields were analyzed on hole-edge cracks in an aluminum alloy plate under the biaxial load. And effects of load parallel to crack face failure parameters discussed. By quantifying size loading mode propagation driving force, J integral, plastic limit load, corresponding assessment curves cracked established with new R6 diagram (FAD) method. The result shows that transverse has a larger effect curve than length does, safety zone gradually becomes smaller while changes from tensile condition compressed. Especially, when acts as pressure, Option 3 results 1 does.
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