The stress triaxiality was a major mechanical factor which induced brittle fracture,and the strain concentration controlled the ductile fracture procedure.

 
  • 应力三轴性是控制高强匹配和低强匹配接头脆性断裂的主要力学因素,而应变集中控制着中强匹配接头的延性蠕变断裂。
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