/H3D/QUAD

Engine Keyword Generate H3D contour output results for /QUAD quad elements.

Format

/H3D/QUAD/Keyword3/Keyword4/Keyword5

#optional next line(s) that lists the parts to save results for.

part_ID₁... part_ID_N

Definition


Field	Contents	SI Unit Example
`Keyword3`	Output types.
`Keyword4`	Output types.
`Keyword5`	Output types.
`part_ID`_N	Optional list of part IDs for which results will be output.

Table 1. Scalar Output
Keyword3	Keyword4	Description
`BULK`		Artificial Viscosity
`DAM1`, `DAM2`, `DAM3`		Principal damage values in local cracking skew direction 1, 2 or 3 for material LAW24 with /QUAD elements
`DENS`		Density
`DT`		Time step
`EINT`		Internal energy ( $ρ$ eV)
`EINTM`		Specific internal energy (e)
`EINTV`		Internal energy density ( $ρ$ e)
`ENTH`		Enthalpy (e+pV)
`ENTHM`		Massic enthalpy (e + pV) / m
`ENTHV`		Enthalpy density (e/V +p)
`EPSP`		Mean element plastic strain (or plastic work for /MAT/LAW15 and /MAT/LAW25)
`FAILURE`	`ID`= `fail_ID` or ALL (mandatory) `MODE` = I or ALL	Damage of a specific failure criterion references by its optional identifier `fail_ID` defined in the Starter file. (for `MODE` output, refer to Comment 4)
`GROUP`		Internal group identifier
`HOURGLASS`		Hourglass energy per mass unit
`OFF`		Element status. Where the result output is: = -1 Element is not active (it is defined in an activated rigid body). = 0 Deleted element. Between 0 and 1 Under failure process. = 1 Active element.
`P`		Pressure
`SIGEQ`		Equivalent stress based on a material’s yield criteria. Some examples of yield criteria are von Mises, Hill or Barlat.
`SIGX`,`SIGY`,`SIGZ`, `SIGXY`,`SIGYZ`,`SIGZX`		Mean element stress in specified direction.
`TILLOTSON`		Region identifier for Tillotson Equation of State (/EOS/TILLOTSON)
`TSAIWU`		Tsai Wu criterion for /MAT/LAW12 (3D_COMP), /MAT/LAW14 (COMPSO), /MAT/LAW15 (CHANG) and /MAT/LAW25 (COMPSH)
`VONM`		Mean element von Mises stress.
`VSTRAIN`		Volumetric strain
`VSTRAIN/I`		Volumetric strain for each volume fraction I (for ALE multi-material laws: LAW20, LAW37, LAW51 and LAW151).
`USER`	`UVAR`= i or ALL	User material (/MAT/USERij) law output for user-defined variable `i`.

Table 2. Scalar ALE and CFD Output
Keyword3	Keyword4	Description
`BFRAC`		Burn fraction
`COLOR`		1vfrac1 + 2vfrac2 + .... + last*vfracN (LAW51 and LAW151 only)
`DIV(U)`		Volumetric dilatation rate
`K`		Specific for turbulent energy in CFD
`LAW20`	`DENS1`	Density for first material
	`DENS2`	Density for second material
	`ENER1`	Specific Energy for first material
	`ENER2`	Specific Energy for second material
	`EPSP1`	Plastic Strain for first material
	`P1`	Pressure for first material
	`P2`	Pressure for second material
	`QVIS1`	Artificial Viscosity for first material
	`QVIS2`	Artificial Viscosity for second material
	`SSP1`	Sound speed for first material. Only available with ALE material laws.
	`SSP2`	Sound speed for second material. Only available with ALE material laws.
	`TEMP1`	Temperature for first material
	`TEMP2`	Temperature for second material
	`VOLUM1`	Volume for first material
	`VOLUM2`	Volume for second material
`MACH`		Mach number (/MAT/LAW151 only)
`SCHLIEREN`		Schlieren image (optical method widely used in `CFD` field). ALE material laws
`SSP`		Sound speed. Only available with ALE material laws.
`TDET`		Detonation time output.
`TVIS`		Specific for turbulent viscosity in CFD
`VFRAC1`,`VFRAC2`, `VFRAC3`,`VFRAC4`		Volumetric fractions (for ALE multi-material laws: LAW20, LAW37 and LAW51)
`VORTX`		Vorticity for ALE material in X direction.
`VECT`	`VEL`	Velocity vectors at finite volume cell centroids.
`VECT`	`ACC`	Acceleration vectors at finite volume cell centroids.

Table 3. Tensor Output
Keyword3	Keyword4	Keyword5	Description
`TENS`	`DAMA`		Cracks tensor at integration points for /MAT/LAW24 only. If `Keyword5` is blank, the mean value in the element is output.
	`EPSP`	IR i or ALL IS j or ALL	Plastic strain tensor at integration points, only available for /MAT/LAW24 with `I`_cap=2. If `Keyword5` is blank, the mean value element is output.
	`STRAIN`	IR i or ALL IS j or ALL	Strain tensor at integration points. If `Keyword5` is blank, the mean value in the element is output.
	`STRESS`	IR i or ALL IS j or ALL	Stress tensor at integration points. If `Keyword5` is blank, the mean value in the element is output.

Example

# Mean element von Mises stress

/H3D/QUAD/VONM

# Specific Energy output for only Parts 1, 55, and 75.

/H3D/QUAD/ENER 
1 55 75

# User variable #12 results

/H3D/QUAD/USER/UVAR=12

# Material LAW20 density for the first material

/H3D/QUAD/LAW20/DENS1

Comments

The syntax /H3D/ELEM/Keyword3/Keyword4/Keyword5 is also valid.
When PART IDs are listed after the /H3D/QUAD line the specified results will only be output for those parts.
To request integration point results, use /IR=i/IS=j notation where the options can be entered in any order.
For failure criteria using different modes (mainly for composites), such as /FAIL/HASHIN, /FAIL/CHANG, and so on, these different modes can be output using the /H3D/QUAD/FAILURE option with the keyword MODE. You can choose to plot a specific mode using its number I (refer to the failure criterion documentation for mode number details), or all modes with ALL.