Crack rotation factor r and plastic crack rotation factor rp are analyzed by means of simulated test using finite element methods. The results indicate that r and rp are influenced by material and geometry parameters ...Crack rotation factor r and plastic crack rotation factor rp are analyzed by means of simulated test using finite element methods. The results indicate that r and rp are influenced by material and geometry parameters in three-point bend specimen and r and rp are variable value in small scope of yield. Therefore, it has some great error that r and rp are regarded as constants in analyzing CTOD crack driving force.展开更多
文摘Crack rotation factor r and plastic crack rotation factor rp are analyzed by means of simulated test using finite element methods. The results indicate that r and rp are influenced by material and geometry parameters in three-point bend specimen and r and rp are variable value in small scope of yield. Therefore, it has some great error that r and rp are regarded as constants in analyzing CTOD crack driving force.
