ABSTRACT
Fukasawa (Fuwasawa et al., 2013) calculated the long-term D using two types of stresses. One is RAW obtained by the nonlinear strip method as elastic hull. And the other is corresponding to LF which calculated as rigid hull. The difference of D of RAW and LF were significant approximately twice. And he pointed out it is necessary to simulate the nonlinear retardation phenomena of crack propagation.
