The maximum tangential stress(MTS),minimum strain energy density factor(SED),averaged strain energy density(ASED)criterion and the modified criteria based on MTS,SED and ASED considering non-singular stress term T-stress are introduced.The effect of non-singular stress term T-stress and the Poisson's ratio on the mode Ⅰ crack fracture initi-ation angel and the critical intensity factor based on different criterion were analyzed and compared.The influence trend and threshold of the T-stress effect on mode Ⅰ crack fracture deflection and crack onset propagation condition were then given.The analysis results show that the constant T-stress has a significant effect on mode Ⅰ fracture behavior for linear elastic ma-terials.
维普
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