LS-DYNA에서 제공되는 HISTORY VARIAVLES

아래의 표는 LS-DYNA에서 기본적으로 제공하는 history variables이다. 각 material type과 element type별로 정리 되어 있다. 

user defined material [UMAT]을 사용하고자 할때 중요한 참고 자료이다. 

기회가 되면 UMAT에 대해 다뤄보고자 한다. 

 'eqp' 라고 표기된것은  'plastic strain' 을 의미한다. 

material	no.	shells	no.	solids
*MAT_002	eqp  1  2  3  4  5  6  7  8  9  10  11  12	stiffness component C11  stiffness component C12  stiffness component C13  stiffness component C14  stiffness component C22  stiffness component C23  stiffness component C24  stiffness component C33  stiffness component C34  stiffness component C44  stiffness component C55  stiffness component C56  stiffness component C66	1..9	deformation gradient
*MAT_003	1  2  3  4  5	back stress component xx  back stress component yy  back stress component xy  back stress component yz  back stress component zx	1  2  3  4  5	back stress component xx  back stress component yy  back stress component xy  back stress component yz  back stress component zx
*MAT_004	3	temperature	3	temperature
*MAT_007			1..9	deformation gradient
*MAT_015	1  3  4  5  6	failure value  current pressure cutoff  JC damage parameter  temperature change  JC failure strain	5 6	temperature change  JC damage parameter
*MAT_017			4  11  12	fracture flag  fracture stress  element size
*MAT_019   (VP=0)	1  2  3  4	ratio of hisvar 2 to hisvar 3  current failure component  given failure component   effective strain rate	1 2 3 4	ratio of hisvar 2 to hisvar 3  current failure component  given failure component   effective strain rate
*MAT_021	15	temperature	15	temperature
*MAT_022   (LAMSHT=1)	eqp  1  2  3  4	failure flag tensile fiber mode  failure flag tensile matrix mode  failure flag compr. matrix mode  material direction cosine  material direction sinus	1  2  3	failure flag tensile fiber mode  failure flag tensile matrix mode  failure flag compr. matrix mode
*MAT_024	1  4  5	effective strain rate  current hardening slope  current yield stress	1  4  5	effective strain rate  current hardening slope  current yield stress
*MAT_025			1  2  3  4  5  6  7	hardening variable K  cap - J1-axis interception, X(K)  volumetric plastic strain  first stress invariant  second stress invariant  response mode number  number of iterations
*MAT_034   (FORM=14)	3  4  5  6  7  8	local stress fiber a  local stress fiber b  local shear stress  local strain fiber a  local strain fiber b  local shear strain
*MAT_036	1  3  4  6  7  8	reverse of old yield stress  material direction cosine  material direction sinus  effective strain rate  current yield stress  current hardening slope
*MAT_037	2  3	current hardening slope  current yield stress
*MAT_054   (LAMSHT=1)	1  2  3  4  5  6  8  9  10  11  12  16	failure flag tensile fiber mode  failure flag compr. fiber mode  failure flag tensile matrix mode  failure flag compr. matrix mode  total failure  damage parameter (SOFT)  material direction cosine  material direction sinus  local fiber strain  local matrix strain  local shear strain  transverse shear damage
*MAT_055   (LAMSHT=1)	1  2  3  4  5  6  8  9  10  11  12	failure flag tensile fiber mode  failure flag compr. fiber mode  failure flag tensile matrix mode  failure flag compr. matrix mode  total failure  damage parameter (SOFT)  material direction cosine  material direction sinus  local fiber strain  local matrix strain  local shear strain
*MAT_058	1  2  3  4  5  6  7  8  9  15	damage in fiber direction  damage in matrix direction  damage in shear  threshold failure value r1  threshold failure value r2  material direction cosine  material direction sinus  total failure  threshold failure value rs  effective strain
*MAT_059	4  5  6  7	material direction cosine  material direction sinus  failure value  damage
*MAT_063			eqp  1	volumetric strain ln(V)  volumetric strain gamma=1-V
*MAT_065	6	temperature change	6	temperature change
*MAT_081	1  4  5	damage  current hardening slope  current yield stress	1  4  5	damage  current hardening slope  current yield stress
*MAT_082	1  4  5  6  10  11  12	damage 1  current hardening slope  current yield stress  damage 2  material direction cosine  material direction sinus  Wilkins damage (only _RCDC)	1  2  3  6  7	damage 1  damage 2  damage 3  current hardening slope  current yield stress
*MAT_083			15  16  17	1st principal strain rate  2nd principal strain rate  3rd principal strain rate
*MAT_089	1 4 5 7 19 21	effective strain rate filtered strain rate maximum strain rate failure strain total effective strain damage	1 4 5 7 19 21	effective strain rate filtered strain rate maximum strain rate failure strain total effective strain damage
*MAT_096			eqp  1  2  3  4	normalized internal variable alpha  internal variable alpha  1-direction of crack normal  2-direction of crack normal  3-direction of crack normal
*MAT_098	1  1	effective strain rate (VP=0)  failure flag (VP=1)
*MAT_100			8 10	damage  effective strain rate
*MAT_101	5  7  9	strain rate  failure flag  current unloading modulus
*MAT_103	13  14	material direction cosine  material direction sinus
*MAT_104	1  2  3	current yield stress  current hardening slope  damage	1 2 3	current yield stress  current hardening slope  damage
*MAT_105	1	damage	1	damage
*MAT_106	1  2  3  4  5  6	temperature  Young's modulus  Poisson's ratio  yield stress  isotropic scaling factor  kinematic scaling factor	1 2 3 4 5 6	temperature  Young's modulus  Poisson's ratio  yield stress  isotropic scaling factor  kinematic scaling factor
*MAT_110			1 2 3 4	bulking pressure increment due to energy loss damage plastic strain increment effective strain rate
*MAT_120	1 4 5 6 7 11 13 14	void volume fraction  triaxiality  effective strain rate  growth of voids  nucleation of voids  material damage  deviatoric microscopic pl. strain  volumetric macroscopic pl. strain	1 2 3 4 5 11 13 14	void volume fraction  triaxiality  effective strain rate  growth of voids  nucleation of voids  material damage  deviatoric microscopic pl. strain  volumetric macroscopic pl. strain
*MAT_120_JC	1  4  5  6  7  8  9  10  11  13  14	void volume fraction  triaxiality  effective strain rate  growth of voids  nucleation of voids  JC failure strain  JC damage  domain variable  material damage  deviatoric microscopic pl. strain  volumetric macroscopic pl. strain	1  2  3  4  5  6  7  8  11  13  14	void volume fraction  triaxiality  effective strain rate  growth of voids  nucleation of voids  JC failure strain  JC damage  domain variable  material damage  deviatoric microscopic pl. strain  volumetric macroscopic pl. strain
*MAT_120_RC..	1  2  3  6  7  8  12	void volume fraction  damage  critical damage  fracture fraction  trial stress weighting term  asymmetric strain weighting term  damage slope	1  2  3  4  5  6  10	void volume fraction  damage  critical damage  fracture fraction  trial stress weighting term  asymmetric strain weighting term  damage slope
*MAT_123	1  6  7	effective strain rate  thinning strain  major in plane strain	1  7	effective strain rate  major principal strain
*MAT_126			eqp	relative volume
*MAT_133	6	strain rate
*MAT_138			eqp	damage
*MAT_143			7 8 9 10	damage, parallel tension  damage, parallel compression  damage, perpendicular tension  damage, perpendicular compression
*MAT_159			eqp 3 4	misc. (see manual)  ductile damage  brittle damage
*MAT_169			1 2 3 4 5 6	damage  edge damage  normal stress  shear stress  element size plastic strain rate (starting with release R6)
*MAT_186			1  3  4  5	effective separation parameter  stiffness in 1-direction  stiffness in 2-direction  stiffness in 3-direction
*MAT_187	1  2  3  4  5	accumulated plastic multiplier  eq. plastic strain tension/compr.  eq. plastic strain shear  eq. plastic strain biaxial  damage	1  2  3  4  5	accumulated plastic multiplier  eq. plastic strain tension/compr.  eq. plastic strain shear  eq. plastic strain biaxial  damage
*MAT_221			eqp  1  2  3  4  5  6  7  8	damage in traction along a  damage in traction along b  damage in traction along c  damage in compression along a  damage in compression along b  damage in compression along c  shear damage in ab-plane  shear damage in bc-plane  shear damage in ac-plane
*MAT_224	1 7 8 9 10 11 12	plastic strain rate  plastic work  ratio of pl. strain to pl. failure strain  element size  temperature plastic failure strain triaxiality	5 8 9 10 11 12 13 14	plastic strain rate plastic failure strain triaxiality Lode angle  plastic work  ratio of pl. strain to pl. failure strain  element size  temperature
*MAT_234	1 2 3	material direction cosine  material direction sinus  degradation coefficient
*MAT_235	1 2 3 4 13	braid angle (fill)  braid angle (warp)  undulation angle (fill)  undulation angle (warp)  discount factor
*MAT_240			1 2 3 4	damage  failure flag  reference strain rate  thickness