Publication: APPLICABILITY OF ENERGY RATE LINE INTEGRAL TO CREEP CRACK GROWTH.
Abstract
Energy rate line integral C has been widely tried in recent times to describe crack growth in creep. However, published data on different materials clearly indicate a systematic scatter and load dependence of the relation. The derivation of the parameter from the first principle and the systematic scatter in da/dt vs C relation are discussed and an alternative approach to creep crack growth is indicated in the paper.