/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 | ||||||||
Definitions
| 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 |
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 volume unit | 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 |
Comments
- 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.
- 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
- SX, SY ... are the stress tensor components expressed in the global skew frame.
- 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.