A new command for the post-treatment of fracture mechanics

by S. Géniaut, EDF R&D / AMA

The news command POST_RUPTURE will enrich the possibilities of post-treatment in fracture mechanics. This new command is used in the following of calculation of energy release rate and stress intensity factors (CALC_G or POST_K1_K2_K3).

POST_RUPTURE allows many generic treatments :

• normalization of the curvilinear abscissa,
• calculation of the angle of bifurcation,
• calculation of the equivalent stress intensity factor,
• set to zero the negative values ​​of K1 stress intensity factors

POST_RUPTURE provides also useful operations for fatigue calculations, in addition to existing fatigue calculation commands :

• cycle counting in fatigue,
• cumulation of fatigue cycles,
• calculation of the crack propagation increment due to fatigue,
• continuation method for propagation.

Available in the version 11.0.2 and later