Effect of direction of approach of test temperature on fracture toughness of Zr-2.5Nb pressure tube material
Previous work by one of the authors reported the stress-field for a fully-constrained hydride embedded in matrix computed using finite element method to develop an understanding of the temperature dependence of susceptibility of Zr-alloys to hydride embrittlement. It was observed that the nature and magnitude of stress field in the matrix and hydride depended on whether the hydride is expanding (e