A Numerical Study on Crack Growth Resistance Curve of X70 Steels Conference Paper uri icon

abstract

  • In this work a phenomenological approach is employed for fracture initation and propagation in SENT specimens. Modified Mohr-Coulomb (MMC) fracture criterion establish the initiation of damage/fracture at the critical material point and the post-initation softening controls its rate of propagation. By means of a tridimensional mixed stress state (equivalent plastic strain, p; Triaxiality, ; and Lode angle, ) the nature of the growing crack front can be explained.

name of conference

  • ASME 2016 Pressure Vessels and Piping Conference

published proceedings

  • Volume 6B: Materials and Fabrication

author list (cited authors)

  • Paredes, M., Zelenak, P., & Wierzbicki, T

publication date

  • January 1, 2016 11:11 AM