/TH/QUAD

Block Format Keyword Describes the time history for a quad.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/TH/QUAD/thgroup_ID
thgroup_name
var_ID1 var_ID2 var_ID3 var_ID4 var_ID5 var_ID6 var_ID7 var_ID8 var_ID9 var_ID10
elem_ID elem_name

Definition

Field Contents SI Unit Example
thgroup_ID TH group identifier

(Integer, maximum 10 digits)

thgroup_name TH group name

(Character, maximum 100 characters)

var_ID1, ...n Variables saved for TH (see table below)

(Character, maximum 8 characters)

elem_ID Element identifier

(Integer)

elem_name Name of the element to appear in the time history

(Integer, maximum 80 characters)

TH Output Keyword & Variables

Keyword Object Saved Variables
QUAD 2D quads OFF, SX, SY, SZ, SXY, SYZ, SXZ, IE, DENS, QVIS, VOL, PLAS, TEMP, PLSR, DAM1, DAM2, DAM3, DAM4, DAM5, DAMA, SA1, SA2, SA3, CR, CAP, K0, RK, TD, EFIB, ISTA, VPLA, BFRAC, WPLA

LSX, LSY, LSZ, LSXY, LSXZ, LSYZ

EPSXX, EPSYY, EPSZZ, EPSXY, EPSZX, EPSYZ

LEPSX, LEPSY, LEPSZ, LEPSXY, LEPSZX, LEPSYZ

EPSX111, EPSY111, EPSZ111, EPSXY111, EPSZX111, EPSYZ111

EPSX121, EPSY121, EPSZ121, EPSXY121, EPSZX121, EPSYZ121

EPSX221, EPSY221, EPSZ221, EPSXY221, EPSZX221, EPSYZ221

AUX1, AUX2, AUX3, USRi (i=1,60)

VX, VY, VZ, SSP, MACH

Table of Available Variables - Part 2

Variable groups for solid elements are listed. If a variable group is requested, all the associated TH-variables are written at once

Keyword Variable Group Saved TH Variables
QUAD DEF OFF, SX, SY, SZ, SXY, SYZ, SXZ, IE, DENS, PLAS, TEMP
STRESS SX, SY, SZ, SXY, SYZ, SXZ
LOCSTRS LSX, LSY, LSZ, LSXY, LSYZ, LSXZ
STRAIN EPSXX, EPSYY, EPSZZ, EPSXY, EPSZX, EPSYZ
LOCSTRN LEPSX, LEPSY, LEPSZ, LEPSXY, LEPSZX, LEPSYZ

Output for Quad

Output for Quad Available for Material Law
OFF: element flag for deactivation 4 1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 20, 21, 22, 23, 24, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 66, 69, 72, 76, 78, 79
SX, SY, SZ, SXY, SYZ, and SXZ:

component of the stress matrix in the global frame

1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 20, 21, 22, 23, 24, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 66, 69, 72, 76, 78, 79
LSX, LSY, LSZ, LSXY, LSYZ, and LSXZ:

component of the stress matrix in the local frame

0, 1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 21, 22, 24, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 50, 51, 52, 53, 66, 69, 72, 76, 78, 79
IE: internal energy per initial element volume 1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 20, 21, 22, 23, 24, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 66, 72, 76
DENS: density 1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 20, 21, 22, 23, 24, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 66, 72, 76
QVIS: artificial viscosity (pseudo-viscosity) 1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 20, 21, 22, 23, 24, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 66, 72, 76
VOL: volume 1, 2, 3, 4, 5, 6, 10, 11, 16, 18, 20, 21, 22, 23, 24, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 48, 66, 72, 76
PLAS: plastic strain 2, 3, 4, 10, 16
TEMP: temperature 4, 6, 11, 16
PLSR: strain rate 4, 16
EPSXX, EPSYY, EPSZZ, EPSXY, EPSZX, EPSYZ: Strain component in the global system. Averaged result for elements with multiple integration points. All materials that are compatible with QUAD elements.
LEPSX, LEPSY, LEPSZ, LEPSXY, LEPSYZ, LEPSZX: Strain component in the local system. Averaged result for elements with multiple integration points. All materials that are compatible with QUAD elements.

EPSXijk, EPSYijk, EPSZijk, EPSXYijk, EPSYZijk, EPSZXijk (i=1,2; j=1,2; k=1): Strain component per integration point in the global system.

All materials that are compatible with QUAD elements.
DAM1: tensile damage in direction 1 24
DAM2: tensile damage in direction 2 24
DAM3: tensile damage in direction 3 24
DAM4: tensile damage in direction 1

Tsai-Wu yield function

25
DAM5: tensile damage in direction 23 24
DAMA: sum of damages 24
SA1: stress reinforced in direction 1 24
SA2: stress reinforced in direction 2 24
SA3: stress reinforced in direction 3 24
CR: volume of opened cracks 24
CAP: cap parameter 24
K0: plastic parameter 24
RK: turbulent energy 6, 11
TD: turbulent dissipation 6, 11
EFIB: fiber strain 25
ISTA: phase state 16
VPLA: equivalent volumetric plastic strain 10
BFRAC: burn fraction 5
WPLA: plastic work 25
AUX1 user variable 29, 30, 31, 40, 42, 43, 44, 46, 48
AUX2 user variable 29, 30, 31, 40, 42, 43, 44, 46, 48
AUX3 user variable 29, 30, 31, 40, 42, 43, 44, 46, 48
USRi (i=1,60) All materials that are compatible with QUAD elements
VX, VY, VZ All materials that are compatible with QUAD elements
SSP All materials that are compatible with QUAD elements
MACH All materials that are compatible with QUAD elements

Comments

  1. Available names are listed in the two tables above.

    In the first table, TH-variables are listed. If a TH-variable is requested, this variable is written.

    In the second table, other variable groups are listed. If a variable group is requested, all the associated TH-variables are written at once.

  2. In case of co-rotational formulation for quad elements, the local stresses LSX, LSY, LSZ, LSXY, LSXZ, LSYZ, LEPSX, LEPSY, LEPSZ, LEPSXY, LEPSYZ and LEPSZX are given:
    • for isotropic law in the co-rotational frame
    • for orthotropic law in the orthotropic frame
  3. SX, SY ... are the stress tensor components expressed in the global skew frame.
  4. OFF:
    • 0.0 deleted element
    • 1.0 active element
    • 2.0 (shells / solids): active element using small strain
    • Negative value -1/-2 when the element is on stand-by due to rigid body
    • Some intermediate values can be found during few cycles before element deletion (progressive reduction of off during a few cycles applies as a multiplicative factor to the stress, so that the stress is progressively vanished, and element is deleted after ~ 10 cycles). This process applies to some element types, but not all.