Failure Models

Failure Model Description

Failure Model Keyword Type Application Description
/FAIL/ALTER Stress-based for glass Glass Stress-based for glass
/FAIL/BIQUAD Strain failure model Ductile metal Direct input on effective plastic strain to failure
/FAIL/CHANG Chang-Chang model Composite Failure criteria for composites
/FAIL/COCKCROFT Ductile failure model Ductile material Cockcroft-Latham failure model
/FAIL/CONNECT Failure Connection, spotweld Normal and tangential failure model
/FAIL/EMC Extended Mohr Coulomb model Metal Failure dependent on effective plastic strain
/FAIL/ENERGY Energy isotrop Metal, plastic Specific energy
/FAIL/FABRIC Traction Fabric Strain failure
/FAIL/FLD Forming limit diagram Metal Forming Fld
/FAIL/GURSON Ductile failure model Metal Failure based on void nucleation and growth in metal plasticity
/FAIL/HASHIN Composite model Composite Hashin model
/FAIL/HC_DSSE Extended Mohr Coulomb failure model Metal Strain based Ductile Failure Model: Hosford-Coulomb with Domain of Shell-to-Solid Equivalence
/FAIL/JOHNSON Ductile failure model Ductile metal Johnson-Cook
/FAIL/LAD_DAMA Composite delamination Composite Ladeveze delamination model
/FAIL/MULLINS_OR Hyperelastic damage Hyperelastic materials Stress softening Mullins effect of hyperelastic materials
/FAIL/NXT NXT failure model Metal Forming Similar to FLD, but based on stresses
/FAIL/ORTHSTRAIN Orthotropic strain failure Composite Orthotropic strain failure criteria with size effects and strain rate effects
/FAIL/PUCK Composite model Composite Puck model
/FAIL/SNCONNECT Failure Connection, spot weld Failure criteria for plastic strain
/FAIL/SPALLING Ductile + Spalling Ductile metal Spalling + Johnson-Cook
/FAIL/TAB1 Strain failure model Ductile metal based on damage accumulation using user-defined functions
/FAIL/TBUTCHER Tuler-Butcher model Ductile metal Failure due to fatigue
/FAIL/TENSSTRAIN Traction Metal, plastic Strain failure
USER1,USER2, USER3 User failure model    
/FAIL/VISUAL Visualization of max value   Visualization of the maximum value of every cycle in a simulation
/FAIL/WIERZBICKI Ductile material Ductile metal Bao-Xue-Wierzbicki model
/FAIL/WILKINS Ductile failure model Ductile metal Wilkins model

Element Compatibility - Part 1

Failure Model 2D Quad 8 node Brick 20 node Brick 4 node Tetra 10 node Tetra 8 node Thick Shell 16 node Thick Shell
/FAIL/ALTER              
/FAIL/BIQUAD ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/CHANG              
/FAIL/COCKCROFT   ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/CONNECT   ✓          
/FAIL/EMC ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/ENERGY ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/FABRIC              
/FAIL/FLD              
/FAIL/GURSON   ✓   ✓ ✓    
/FAIL/HASHIN ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/HC_DSSE              
/FAIL/JOHNSON ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/LAD_DAMA ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/MULLINS_OR   ✓ ✓ ✓ ✓    
/FAIL/NXT              
/FAIL/ORTHSTRAIN ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/PUCK ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/SNCONNECT   ✓          
/FAIL/SPALLING ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/TAB1 ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/TBUTCHER ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/TENSSTRAIN ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/USERi ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/VISUAL ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/WIERZBICKI ✓ ✓ ✓ ✓ ✓ ✓ ✓
/FAIL/WILKINS ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓: yes

blank: no

Element Compatibility - Part 2

Failure Model SHELL TRUSS BEAM
/FAIL/ALTER ✓    
/FAIL/BIQUAD ✓    
/FAIL/CHANG ✓    
/FAIL/COCKCROFT ✓    
/FAIL/CONNECT      
/FAIL/EMC      
/FAIL/ENERGY ✓    
/FAIL/FABRIC ✓    
/FAIL/FLD ✓    
/FAIL/HASHIN ✓    
/FAIL/HC_DSSE ✓    
/FAIL/JOHNSON ✓    
/FAIL/LAD_DAMA ✓    
/FAIL/NXT ✓    
/FAIL/ORTHSTRAIN ✓    
/FAIL/PUCK ✓    
/FAIL/SNCONNECT      
/FAIL/SPALLING      
/FAIL/TAB1 ✓    
/FAIL/TBUTCHER ✓    
/FAIL/TENSSTRAIN ✓    
/FAIL/USERi ✓    
/FAIL/VISUAL ✓    
/FAIL/WIERZBICKI ✓    
/FAIL/WILKINS ✓    

✓: yes

blank: no

Law Compatibility with (Metal) Failure Model

Law ALTER BIQUAD COCKCROFT FLD NXT GURSON ENERGY HC-DSSE ECM TENSSTRAIN JOHNSON CONNECT SNCONNECT SPALLING TAB1 TBUTCHER WIERZBICKI WILKINS
/MAT/LAW0 (VOID)       ✓                       ✓    
/MAT/PLAS_PREDEF ✓ ✓ ✓ ✓ ✓   ✓   ✓ ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW1 (ELAST) ✓   ✓ ✓     ✓     ✓‡           ✓    
/MAT/LAW2 (PLAS_JOHNS) ✓ ✓ ✓ ✓ ✓   ✓   ✓ ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/PLAS_ZERIL ✓ ✓ ✓ ✓ ✓   ✓     ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW3 (HYDPLA)   ✓         ✓     ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW4 (HYD_JCOOK)   ✓ ✓       ✓     ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW5 (JWL)                                    
/MAT/LAW6 (HYDRO or HYD_VISC)             ✓     ✓‡           ✓    
/MAT/LAW10 (DPRAG1)     ✓       ✓     ✓‡           ✓    
/MAT/LAW12 (3D_COMP)     ✓       ✓     ✓‡                
/MAT/LAW14 (COMPSO)     ✓       ✓     ✓‡           ✓    
/MAT/LAW15 (CHANG)     ✓ ✓                       ✓    
/MAT/LAW16 (GRAY)                                    
/MAT/LAW19 (FABRI)     ✓ ✓                       ✓    
/MAT/LAW21 (DPRAG)             ✓     ✓‡           ✓    
/MAT/LAW22 (DAMA)   ✓ ✓ ✓     ✓     ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW23 (PLAS_DAMA)   ✓ ✓       ✓     ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW24 (CONC)     ✓       ✓     ✓‡           ✓    
/MAT/LAW25 (COMPSH)     ✓ ✓                       ✓    
/MAT/LAW27 (PLAS_BRIT) ✓ ✓ ✓ ✓             ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW28 (HONEYCOMB)     ✓       ✓     ✓         ✓ ✓    
USER1       ✓*     ✓ ✓   ✓           ✓    
USER2       ✓*     ✓ ✓   ✓           ✓    
USER3       ✓*     ✓ ✓   ✓           ✓    
/MAT/LAW32 (HILL)   ✓ ✓ ✓ ✓     ✓     ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW33 (FOAM_PLAS)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW34 (BOLTZMAN)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW35 (FOAM_VISC)     ✓ ✓     ✓ ✓   ✓           ✓    
/MAT/LAW36 (PLAS_TAB) ✓ ✓ ✓ ✓ ✓   ✓ ✓ ✓ ✓ ✓     ✓ ✓ ✓   ✓
/MAT/LAW38 (VISC_TAB)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW40 (KELVINMAX)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW41 (LEE_TARVER)             ✓ ✓   ✓                
/MAT/LAW42 (OGDEN)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW43 (HILL_TAB)   ✓ ✓ ✓ ✓   ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW44 (COWPER) ✓ ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW48 (ZHAO)   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW49 (STEINB)   ✓ ✓       ✓ ✓   ✓‡ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW50 (VISC_HONEY)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW52 (GURSON)     ✓ ✓     ✓ ✓   ✓           ✓    
/MAT/LAW53 (TSAI_TAB)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW54 (PREDIT)               ✓                    
/MAT/LAW57 (BARLAT3)     ✓       ✓ ✓   ✓                
/MAT/LAW58 (FABR_A)     ✓       ✓ ✓                    
/MAT/LAW59 (CONNECT)               ✓       ✓ ✓          
/MAT/LAW60 (PLAS_T3)   ✓ ✓ ✓     ✓ ✓ ✓ ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW62 (VISC_HYP)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW63 (HANSEL)   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW64 (UGINE_ALZ)   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW65 (ELASTOMER)   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW66   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW68 (COSSER)     ✓       ✓ ✓   ✓                
/MAT/LAW69     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW70 (FOAM_TAB)     ✓       ✓ ✓   ✓       ✓   ✓    
/MAT/LAW72 (HILL_MMC)   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW73   ✓ ✓ ✓ ✓   ✓ ✓   ✓ ✓     ✓   ✓ ✓ ✓
/MAT/LAW74   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓   ✓ ✓ ✓
/MAT/LAW75 (POROUS)               ✓                    
/MAT/LAW76 (SAMP)   ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW77     ✓       ✓ ✓   ✓       ✓   ✓    
/MAT/LAW78   ✓ ✓ ✓ ✓   ✓ ✓ ✓ ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW79 (JOHN_HOLM) ✓ ✓ ✓ ✓     ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW80   ✓ ✓ ✓ ✓   ✓ ✓   ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW81               ✓                    
/MAT/LAW82     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW83               ✓         ✓          
/MAT/LAW84   ✓ ✓         ✓ ✓                  
/MAT/LAW87 (BARLAT2000)   ✓ ✓         ✓     ✓       ✓      
/MAT/LAW88             ✓ ✓   ✓           ✓    
/MAT/LAW90             ✓ ✓   ✓       ✓   ✓    
/MAT/LAW92     ✓ ✓ ✓   ✓ ✓   ✓ ✓     ✓   ✓    
/MAT/LAW93 (ORTH_HILL) or (CONVERSE)   ✓ ✓       ✓ ✓   ✓           ✓ ✓  
/MAT/LAW94 (YEOH)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW95 (BERGSTROM_BOYCE)     ✓       ✓ ✓   ✓           ✓    
/MAT/LAW97 (JWLB)                                    
/MAT/LAW100 (MNF)     ✓       ✓     ✓           ✓    
/MAT/LAW101     ✓       ✓     ✓           ✓    
/MAT/LAW102 (DPRAG2)     ✓       ✓     ✓‡           ✓    
/MAT/LAW103 (HENSEL-SPITTEL)   ✓ ✓ ✓     ✓   ✓ ✓ ✓     ✓ ✓ ✓ ✓ ✓
/MAT/LAW104           ✓                        
/MAT/LAW106 (JCOOK_ALM)   ✓ ✓       ✓   ✓ ✓ ✓     ✓ ✓ ✓ ✓ ✓

Law Compatibility for Composite and Other Failure Models

Law ORTHSTRAIN FABRIC HASHIN LAD_DAMA PUCK CHANG MULLINS_OR USERi VISUAL
/MAT/LAW0 (VOID) ✓             ✓  
/MAT/PLAS_PREDEF ✓             ✓ ✓
/MAT/LAW1 (ELAST) ✓     ✓***       ✓ ✓
/MAT/LAW2 (PLAS_JOHNS) ✓             ✓ ✓
/MAT/PLAS_ZERIL               ✓ ✓
/MAT/LAW3 (HYDPLA)               ✓ ✓
/MAT/LAW4 (HYD_JCOOK)               ✓ ✓
/MAT/LAW5 (JWL)               ✓  
/MAT/LAW6 (HYDRO or HYD_VISC)               ✓ ✓
/MAT/LAW10 (DPRAG1) ✓             ✓ ✓
/MAT/LAW12 (3D_COMP) ✓   ✓ ✓ ✓     ✓ ✓
/MAT/LAW14 (COMPSO) ✓   ✓ ✓ ✓     ✓ ✓
/MAT/LAW15 (CHANG) ✓         ✓   ✓ ✓
/MAT/LAW16 (GRAY)               ✓  
/MAT/LAW18 (THERM) ✓             ✓  
/MAT/LAW19 (FABRI)           ✓   ✓ ✓
/MAT/LAW21 (DPRAG) ✓             ✓ ✓
/MAT/LAW22 (DAMA) ✓         ✓   ✓ ✓
/MAT/LAW23 (PLAS_DAMA) ✓             ✓ ✓
/MAT/LAW24 (CONC) ✓             ✓ ✓
/MAT/LAW25 (COMPSH) ✓   ✓ ✓** ✓ ✓   ✓ ✓
/MAT/LAW27 (PLAS_BRIT) ✓             ✓ ✓
/MAT/LAW28 (HONEYCOMB)               ✓ ✓
USER1 ✓             ✓ ✓
USER2 ✓             ✓ ✓
USER3 ✓             ✓ ✓
/MAT/LAW32 (HILL) ✓             ✓ ✓
/MAT/LAW33 (FOAM_PLAS) ✓             ✓ ✓
/MAT/LAW34 (BOLTZMAN) ✓             ✓ ✓
/MAT/LAW35 (FOAM_VISC) ✓             ✓ ✓
/MAT/LAW36 (PLAS_TAB) ✓             ✓ ✓
/MAT/LAW38 (VISC_TAB) ✓             ✓ ✓
/MAT/LAW40 (KELVINMAX) ✓             ✓ ✓
/MAT/LAW41 (LEE_TARVER) ✓             ✓ ✓
/MAT/LAW42 (OGDEN) ✓             ✓ ✓
/MAT/LAW43 (HILL_TAB) ✓             ✓ ✓
/MAT/LAW44 (COWPER) ✓             ✓ ✓
/MAT/LAW48 (ZHAO) ✓             ✓ ✓
/MAT/LAW49 (STEINB) ✓             ✓ ✓
/MAT/LAW50 (VISC_HONEY) ✓             ✓ ✓
/MAT/LAW52 (GURSON) ✓             ✓ ✓
/MAT/LAW53 (TSAI_TAB) ✓             ✓ ✓
/MAT/LAW54 (PREDIT)               ✓  
/MAT/LAW57 (BARLAT3) ✓             ✓ ✓
/MAT/LAW58 (FABR_A) ✓ ✓           ✓ ✓
/MAT/LAW59 (CONNECT)               ✓  
/MAT/LAW60 (PLAS_T3) ✓             ✓ ✓
/MAT/LAW62 (VISC_HYP) ✓             ✓ ✓
/MAT/LAW63 (HANSEL) ✓             ✓ ✓
/MAT/LAW64 (UGINE_ALZ) ✓             ✓ ✓
/MAT/LAW65 (ELASTOMER) ✓             ✓ ✓
/MAT/LAW66 ✓             ✓ ✓
/MAT/LAW68 (COSSER) ✓             ✓ ✓
/MAT/LAW69 ✓             ✓ ✓
/MAT/LAW70 (FOAM_TAB) ✓             ✓ ✓
/MAT/LAW71 ✓             ✓ ✓
/MAT/LAW72 (HILL_MMC) ✓   ✓         ✓ ✓
/MAT/LAW73 ✓             ✓ ✓
/MAT/LAW74 ✓             ✓ ✓
/MAT/LAW75 (POROUS)               ✓ ✓
/MAT/LAW76 (SAMP) ✓             ✓ ✓
/MAT/LAW77               ✓ ✓
/MAT/LAW78 ✓             ✓ ✓
/MAT/LAW79 (JOHN_HOLM) ✓             ✓ ✓
/MAT/LAW80 ✓             ✓ ✓
/MAT/LAW81 ✓             ✓ ✓
/MAT/LAW82 ✓             ✓ ✓
/MAT/LAW83               ✓  
/MAT/LAW84 ✓             ✓ ✓
/MAT/LAW87 (BARLAT2000) ✓             ✓ ✓
/MAT/LAW88 ✓             ✓ ✓
/MAT/LAW90               ✓ ✓
/MAT/LAW92 ✓           ✓ ✓ ✓
/MAT/LAW93 (ORTH_HILL) or (CONVERSE) ✓             ✓ ✓
/MAT/LAW94 (YEOH)               ✓ ✓
/MAT/LAW95 (BERGSTROM_BOYCE)             ✓ ✓ ✓
/MAT/LAW97 (JWLB)               ✓  
/MAT/LAW100 (MNF)             ✓ ✓ ✓
/MAT/LAW101               ✓ ✓
/MAT/LAW102 (DPRAG2) ✓             ✓ ✓
/MAT/LAW103 (HENSEL-SPITTEL) ✓   ✓ ✓ ✓     ✓ ✓
/MAT/LAW106 (JCOOK_ALM) ✓   ✓ ✓ ✓     ✓ ✓

✓: yes

blank: no

* : for shells only

** : for solid only

***: LAW1 and /FAIL/LAD_DAMA could only together used as interply material by Plyxfem in /PROP/TYPE17

‡ : flag Istrain (defined in property card) must be activated

Comments

  1. Failure models are not available with global integration (N=0 in /PROP/SHELL) for shells.
  2. Keyword USER1, USER2 and USER3 refer to /FAIL/USERi for shell and brick elements.
  3. Up to 6 failure models can be applied to a single material, each failure model representing a failure mode.
  4. Failure models can be used for SPH simulation for all materials compatible with SPH formulation.
  5. Four failure models (FLD, JOHNSON, TAB1, and TBUTCHER) are compatible when X-FEM provided property TYPE1 (SHELL), TYPE11 (SH_SANDW), or TYPE51 is used.
  6. /FAIL/TAB1 and /PROP/TYPE51 cannot be used with XFEM yet.
  7. FAIL/ORTHSTRAIN is compatible with material or failure which could be used with orthotropic properties.