CREEP DAMAGE FIELDS NEAR THE CRACK TIP UNDER BIAXIAL LOADING
Numerical calculation of infinite cracked plate is presented for creep condition with damage accumulation. Distribution of a damage fields near the crack tip are presented for different combination of creep time, load biaxial ratio and government parameter of damage accumulation function. Three types of biaxial ratio is considered. It is established that accounting for creep damage gives a more conservative estimate of the strength of the material. Distributions of a government parameter of stress-strain fields in form of In-integral is obtained with taking in to account damage accumulation during creep. The sensitivity of the creep stress intensity factor to the parameters of the damage accumulation function parameters is demonstrated.