Key words ========= Laws CZM_xxx_REG ---------------- Cohesive behavior laws CZM_EXP_REG and CZM_LIN_REG are used in STAT_NON_LINE and DYNA_NON_LINE. They 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_MATERIAU under the RUPT_FRAG keywords: GC: critical surface energy density (Pressure x Length) SIGM_C: critical stress (Pressure) PENA_ADHERENCE: penalization of adherence. PENA_CONTACT: penalization of contact (optional equal to 1 by default). The RUPT_FRAG_FO keyword makes it possible to make the parameters depend on the temperature (see documentation from DEFI_MATERIAU [:external:ref:`U4.43.01 `]). .. csv-table:: "**Orders**", "", "" "STAT_NON_LINE "," COMPORTEMENT "," RELATION "," CZM_EXP_REG" "", "", "CZM_LIN_REG" "DYNA_NON_LINE "," COMPORTEMENT "," RELATION "," CZM_EXP_REG" "", "", "CZM_LIN_REG" "AFFE_MODELE "," MODELISATION "," PLAN_JOINT ", "" "", "", "AXIS_JOINT ", "" "", "", "3D_ JOINT ", "" "DEFI_MATERIAU "," RUPT_FRAG ", "GC", "" "", "", "SIGM_C ", "" "", "", "PENA_ADHERENCE ", "" "", "", "PENA_CONTACT ", "" "", "RUPT_FRAG_FO ", "GC", "" "", "", "SIGM_C ", "" "", "", "PENA_ADHERENCE ", "" "", "", "PENA_CONTACT ", "" These cohesive laws of behavior are tested in statics: see test case SSNP118 (doc [:external:ref:`V6.03.118 `]), SSNP133 (doc [:external:ref:`V6.03.133 `]), SSNA115 (doc [:external:ref:`V6.01.115 `]) and SSNV199 (doc [:external:ref:`V6.03.199 `]) and in dynamics: test case (doc []) and in dynamics: test case SDNS105 (doc []). :external:ref:`V5.06.105 ` Laws CZM_xxx_MIX ---------------- The cohesive laws of behavior CZM_ELAS_MIX, CZM_TAC_MIX, CZM_OUV_MIX, CZM_EXP_MIX,,,, CZM_TRA_MIX,, CZM_FAT_MIX, and CZM_LAB_MIX are used in STAT_NON_LINE (and DYNA_NON_LINE for the first three). They can be used with all INTERFACE models in 2D and 3D. * For law CZM_ELAS_MIX, six parameters must be entered in DEFI_MATERIAUsous the keyword CZM_ELAS: * * * RIGI_NOR_TRAC: stiffness module :math:`{k}_{\mathit{nt}}` in the normal direction under traction (:math:`J/{m}^{4}`) * RIGI_NOR_COMP: stiffness module :math:`{k}_{\mathit{nc}}` in the normal compression direction (:math:`J/{m}^{4}`) RIGI_TAN: stiffness module :math:`{k}_{t}` in the tangent direction (:math:`J/{m}^{4}`) ADHE_NOR: grip type in the normal direction ('PARFAITE', '', 'UNILATER', 'ELAS') ADHE_TAN: type of grip in the tangent direction ('PARFAITE', 'ELAS') PENA_LAGR_ABSO: penalty coefficient :math:`r` (:math:`J/{m}^{4}`) Optionally, the stiffness in the normal direction can be entered by RIGI_NOR if it is identical in tension and in compression (:math:`{k}_{\mathit{nt}}={k}_{\mathit{nc}}`). * For laws CZM_TAC_MIX, CZM_OUV_MIX, CZM_EXP_MIX and CZM_FAT_MIX, four parameters must be entered in DEFI_MATERIAU under the keyword RUPT_FRAG: GC: critical surface energy density (Pressure x Length) SIGM_C: critical stress (Pressure) PENA_LAGR: penalization of the Lagrangian (optional, 100 by default). RIGI_GLIS: sliding stiffness, only for CZM_OUV_MIX and CZM_FAT_MIX (optional, 10 by default). CINEMATIQUE: Determine the opening methods authorized by the CZM_TAC_MIX law. It can be a contact condition ('UNILATERAL'), a slide in the tangential plane ('GLIS_2D'), or a slide in a single direction ('GLIS_1D'). (optional, 'UNILATERAL' by default) * For law CZM_TRA_MIX six parameters are to be entered in DEFI_MATERIAU under the keyword RUPT_DUCT: GC: critical surface energy density (Pressure x Length) SIGM_C: critical stress (Pressure) COEF_EXTR: trapezoid shape coefficient (dimensionless) COEF_PLAS: trapezoid shape coefficient (dimensionless) PENA_LAGR: penalization of the Lagrangian (optional, 100 by default). RIGI_GLIS: sliding stiffness, only for CZM_OUV_MIX and CZM_FAT_MIX (optional, 10 by default). * For law CZM_LAB_MIX six parameters are to be entered in DEFI_MATERIAU under the keyword RUPT_DUCT: SIGM_C: Maximum stress bearable by the steel-concrete interface. GLIS_C: Sliding for which the constraint at the interface is maximum. ALPHA: Shape parameter of the steel-concrete adhesion law for low slip. BETA: Shape parameter of the steel-concrete adhesion law for a large slip. PENA_LAGR: Penalization of the Lagrangian (optional, 100 by default). CINEMATIQUE: Determine the sliding modes allowed by the interface law. It can be a contact condition ('UNILATERAL'), a slide in the tangential plane ('GLIS_2D'), or a slide in a single direction ('GLIS_1D'). (optional, 'UNILATERAL' by default) .. csv-table:: "**Orders**", "", "" "STAT_NON_LINE "," COMPORTEMENT "," RELATION "," CZM_ELAS_MIX CZM_TAC_MIX" "", "", "", "CZM_OUV_MIX CZM_EXP_MIX CZM_FAT_MIX CZM_TRA_MIX" "AFFE_MODELE "," MODELISATION "," PLAN_INTERFACE ", "" "", "", "PLAN_INTERFACE_S ", "" "", "", "AXIS_INTERFACE ", "" "", "", "AXIS_INTERFACE_S ", "" "", "", "3D_ INTERFACE ", "" "", "", "3D_ INTERFACE_S ", "" "DEFI_MATERIAU "," CZM_ELAS "," RIGI_NOR ", "" "", "", "RIGI_TAN ", "" "", "", "ADHE_NOR ", "" "", "", "ADHE_TAN ", "" "", "", "PENA_LAGR_ABSO ", "" "DEFI_MATERIAU "," RUPT_FRAG ", "GC", "" "", "", "SIGM_C ", "" "", "", "PENA_LAGR ", "" "", "", "RIGI_GLIS ", "" "", "", "CINEMATIQUE ", "" .. csv-table:: "", "RUPT_DUCT ", "GC", "" "", "", "SIGM_C ", "" "", "", "COEF_EXTR ", "" "", "", "COEF_PLAS ", "" "", "", "PENA_LAGR ", "" "", "", "RIGI_GLIS ", "" "", "CZM_LAB_MIX "," SIGM_C ", "" "", "", "GLIS_C ", "" "", "", "ALPHA ", "" "", "", "BETA ", "" "", "", "PENA_LAGR ", "" "", "", "CINEMATIQUE ", "" These cohesive laws of behavior are tested statically: see for example test cases SSNP118 (doc [:external:ref:`V6.03.118 `]), SSNP139 (doc [:external:ref:`V6.03.139 `]), SSNA115 (doc [:external:ref:`V6.01.115 `]), SSNV199 (doc [:external:ref:`V6.03.199 `]), SSNP151 (doc []), (doc []), (doc [)], (doc [:external:ref:`V6.03.151 ` SSNA120 :external:ref:`V6.01.120 `]. These cohesive laws of behavior are tested statically: see for example test cases SSNP118 (doc [:external:ref:`V6.03.118 `]), SSNP139 (doc [:external:ref:`V6.03.139 `]), SSNA115 (doc [:external:ref:`V6.01.115 `]), SSNV199 (doc [:external:ref:`V6.03.199 `]), SSNP151 (doc []), (doc []), (doc [)], (doc [:external:ref:`V6.03.151 ` SSNA120 :external:ref:`V6.01.120 `].