On the analysis of delamination fractures in high-strength steels

The influence of the stress state on the occurrence of delamination during tensile testing has been examined in two high-strength steels. The stress state was varied by either machining notches into cylindrical tensile samples or by conducting the tensile tests under superimposed hydrostatic pressures up to 690 MPa. In addition, the magnitude of the transverse stresses was modified by varying the yield stress of the material due to the …