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1 个结果
  • 简介:Anasymptoticanalysisismadeonproblemswithasteady-statecrackgrowthcoupledwithacreeplawmodelundertensileloads.Asymptoticequationsofcracktipfieldsincreepmaterialsarederivedandsolvednumericallyundersmallscaleconditions.Stressandstrainfunctionsareadoptedunderapolarcoordinatesystem.Thegoverningequationsofasymptoticfieldsareobtainedbyinsertingthestressfieldandstrainfieldintothemateriallaw.Thecrackgrowthrateratherthanfracturecriterionplaysanimportantroleinthecracktipfieldsofmaterialswithcreepbehavior.

  • 标签: 裂纹扩展速率 蠕变材料 蠕变规律 稳态 渐近解 裂纹尖端场