4. Keywords

The CZM_TURON law of behavior can be used in STAT_NON_LINE and DYNA_NON_LINE. It can be used on 2D or 3D joint elements with the models: PLAN_JOINT, AXIS_JOINT or 3D_ JOINT.

Four parameters are to be entered in DEFI_MATERIAUsous the RUPT_TURON keywords:

GC_N: critical surface energy density in pure N mode (Pressure x Length)

GC_T: critical surface energy density in pure T mode (Pressure x Length)

SIGM_C_N: critical stress in pure N mode (Pressure)

SIGM_C_T: critical stress in pure T mode (Pressure)

K: initial stiffness of the interface (Pressure x Length -1)

ETA_BK: power parameter in the Benzeggagh-Kenane law

C_ RUPT: post-break residual stiffness parameter (dimensionless, equal to 0.001 by default and 0.1 at most)

CRIT_INIT: parameter for selecting the damage initiation criterion (value “Ye’ou “TURON”)

Orders

STAT_NON_LINE COMPORTEMENT/RELATION CZM_TURON

DYNA_NON_LINE COMPORTEMENT/RELATION CZM_TURON

AFFE_MODELE MODELISATION PLAN_JOINT

AXIS_JOINT

3D_ JOINT

DEFI_MATERIAU RUPT_TURON GC_N

GC_T

SIGM_C_N

SIGM_C_T

K

ETA_BK

C_ RUPT

CRIT_INIT

This law of behavior is tested statically: see test case SSNV110 [V6.04.110].