/H3D/NODA
Engine Keyword Generate H3D contour output results for nodes.
Format
/H3D/NODA/Keyword3/Keyword4
#optional next line(s) that lists the parts to save results for.
part_ID_{1} ... part_ID_{N}
Example
/H3D/NODA/VEL
/H3D/NODA/PCONT
356 293
Definition
Comments
 When PART IDs are listed after the /H3D/NODA line the specified results will only be output for those parts.
 Output can be a, scalar, vector, or
tensor as defined.
Table 1. Scalar Output Keyword3 Keyword4 Description CSE_FRIC None Nodal surface contact frictional energy (sum of all interfaces energy per unit of area). Not available for Edge to Edge contact.
 INTER=
 I or ALL
Nodal surface contact frictional energy for the defined interface (energy per unit of area). Not available for Edge to Edge contact.
DAMA2 Damage for TYPE2 interface. 3 DENS Element density extrapolated to attached nodes for 3D ALE and FVM nodes of external and internal airbag surfaces. DINER Nodal inertia change 4 DMASS Nodal mass change. 5 DT Nodal time step ENER Element specific energy reported to node GPS1 P Element pressure extrapolated to node VONM Element von Mises stress extrapolated on node MASS Nodal mass NDMASS Nondiagonal mass variation (see time step control /DT/AMS). 6 NVAR1, NVAR2, ...NVAR5 Nodal Variable 1, 2 …5 P Element pressure extrapolated to attached nodes for 3D ALE and FVM nodes of external and internal airbag surfaces. SKID_LINE  INTER=
 I or ALL
This option is available for /INTER/TYPE8 and /INTER/TYPE21. For /INTER/TYPE21, it is the maximum over time of the ratio between tangential force ${F}_{t}$ and the limit tangential force ${F}_{t}={P}_{skid}\cdot \frac{S}{\sqrt{3}}$ . Refer to /INTER/TYPE21 to define P_{skid}.
 = 0.0
 If no sliding or contact
 = $\frac{{F}_{t}}{{P}_{skid}\cdot \frac{S}{\sqrt{3}}}$
 If sliding and ${F}_{t}\le {P}_{skid}\cdot \frac{S}{\sqrt{3}}$ . Output will be between 0 and 1.
 = 1.0
 If sliding and ${F}_{t}>{P}_{skid}\cdot \frac{S}{\sqrt{3}}$ .
For /INTER/TYPE8, drawbead output values are: = 0
 No contact.
 = 1.0
 Main node is in contact with a drawbead.
SSP Nodal sound speed (FVMBAG) STIF Nodal translational stiffness STIFR Nodal rotational stiffness TEMP Nodal temperature for thermal exchange or element temperature extrapolated to attached nodes for 3D ALE and FVM nodes of external and internal airbag surfaces. VFRAC Nodal Volumetric Fraction where the element volumetric fraction extrapolated to attached nodes in LAW37 and LAW51. ZVFRAC Nodal volumetric fraction. Table 2. Vector Output Keyword3 Keyword4 Description ACC Node acceleration AROT Rotational acceleration I_{drot}=1 must also be set in /IOFLAG; otherwise, rotational degrees of freedom (DOF) are not computed, and this option is ignored.
CLUSTER FORCE MOMENT
Spotweld /CLUSTER force or Moment vector in global coordinates CONT Node contact forces MAX Maximum nodal contact forces over time CONT2 Tied interface contact force (/INTER/TYPE2) TMAX Maximum over time of tied interface contact force (/INTER/TYPE2) TMIN Minimum over time of tied interface contact force (/INTER/TYPE2) DIS Node displacement TMAX Maximum node magnitude of displacement vector over time DROT Node rotation I_{drot}= 1 must also be set in /IOFLAG; otherwise, rotational degree of freedom (DOF) are not computed, and this option is ignored.
FEXT External force FINT Internal force FOPT Forces or Moments for rigid bodies, rigid walls and sections. FRES Residual force (FEXT – FINT) FREAC Reaction forces for imposed velocities, displacements, accelerations and boundary conditions. FVEL Gas velocity vectors for fluid flow in Finite Volume Method monitored volume, /FVMBAG1. MREAC Reaction moments for imposed velocities, displacements, accelerations and boundary conditions. PCONT Normal or tangential contact pressure. 7 TMAX Maximum over time of normal or tangential contact pressure. PCONT2 Normal or tangential tied contact pressure. 7 TMAX Maximum over time of normal or tangential tied contact pressure. TMIN Minimum over time of normal or tangential tied contact pressure. VROT Rotational velocities I_{drot}= 1 must also be set in /IOFLAG; otherwise, rotational degree of freedom (DOF) are not computed, and this option is ignored.
VEL Node translational velocity TMAX Maximum magnitude of node translational velocity vector over time Table 3. Tensor Output Keyword3 Keyword4 Description GPS Mean nodal stress tensor calculated from the element shape functions. 8 Only available for solid elements with /PROP/TYPE6 (SOL_ORTH), /PROP/TYPE14 (SOLID), /PROP/TYPE20 (TSHELL), /PROP/TYPE21 (TSH_ORTH) and /PROP/TYPE22 (TSH_COMP)
TMAX/N=I Mean nodal stress tensor calculated from the element shape functions (8) corresponding to the maximum principal stress (P1) over time. Mean nodal stress tensor calculated from the element shape functions (8) corresponding to the minimum principal stress (P3) over time.
Only available with solids elements with /PROP/TYPE6 (SOL_ORTH), /PROP/TYPE14 (SOLID), /PROP/TYPE20 (TSHELL), /PROP/TYPE21 (TSH_ORTH) and /PROP/TYPE22 (TSH_COMP).
The option N=I allows the maximum stress to be computed only every I cycles to reduce the CPU time. By default, N=10.
GPSTRAIN Mean nodal strain tensor calculated from the element shape functions. 8 Only available with solids elements with /PROP/TYPE6 (SOL_ORTH), /PROP/TYPE14 (SOLID), /PROP/TYPE20 (TSHELL), /PROP/TYPE21 (TSH_ORTH) and /PROP/TYPE22 (TSH_COMP).
TMAX/N=I Mean nodal strain tensor calculated from the element shape functions (8) corresponding to the maximum principal strain (P1) over time. Mean nodal strain tensor calculated from the element shape functions (8) corresponding to the minimum principal strain (P3) over time.
Only available with solids elements with /PROP/TYPE6 (SOL_ORTH), /PROP/TYPE14 (SOLID), /PROP/TYPE20 (TSHELL), /PROP/TYPE21 (TSH_ORTH) and /PROP/TYPE22 (TSH_COMP).
The option N=I allows the maximum strain to be computed only every I cycles to reduce the CPU time. By default, N=10.
GPS1 Not recommended  use /H3D/NODA/GPS. Mean stress of elements connected to node. Only available for /BRICK and /TETRA4.
The stress of the corner node is extrapolated from mean stress at integration point in all elements which are connected to this node.
GPS2 Not recommended  use /H3D/NODA/GPS. Mean (using relative element volume) stress of elements connected to node. Only available for /BRICK and /TETRA4.
The stress of the corner node is extrapolated from the stress at the integration point.
 DAMA2
damage percentages for /INTER/TYPE2 with rupture (Spot_{flag} = 20, 21, or 22):
(1) $$\mathrm{min}\left(100,100\cdot \frac{normal\text{\hspace{0.05em}}\text{\hspace{0.17em}}relative\text{\hspace{0.17em}}displacement}{\mathrm{max}normal\text{\hspace{0.17em}}relative\text{\hspace{0.17em}}displacement}\right)$$(2) $$\mathrm{min}\left(100,100\cdot \frac{\mathrm{tangent}\text{\hspace{0.05em}}\text{\hspace{0.17em}}relative\text{\hspace{0.17em}}displacement}{\mathrm{max}\text{\hspace{0.17em}}tangent\text{\hspace{0.17em}}relative\text{\hspace{0.17em}}displacement}\right)$$ 
(3) $$DINER=\left(\frac{Inertia\left(t\right){I}_{0}}{{I}_{0}}\right)$$Where, ${I}_{0}$ is the nodal inertia at the beginning of the current run and $Inertia\left(t\right)$ is the current inertia.

$DMASS=\left(\frac{\text{\Delta}M}{{M}_{0}}\right)$
with
$\text{\Delta}M=M{M}_{0}$
Where,
 ${M}_{0}$
 Nodal mass at the beginning of the restart.
 $M$
 Current mass.
Note: $\text{\Delta}M$ is reset to 0 at the beginning of each restart file.  When /DT/AMS is used, a
nondiagonal mass matrix is used to increase the time step. On each line of the
mass matrix, the lumped mass
${M}_{0}$
is increased with some value
$\text{\Delta}M$
which is compensated with nondiagonal terms
such that the total mass to remain constant.
(4) $$NDMASS=\left(\frac{\text{\Delta}M}{{M}_{0}}\right)$$  For PCONT or
PCONT2, two nodal vectors are output:
(5) $${P}_{n}=\frac{{F}_{n}}{S},\text{\hspace{1em}}{P}_{t}=\frac{{F}_{t}}{S}$$Where, ${F}_{n}$
 Sum of normal contact forces applied to the node
 ${F}_{t}$
 Sum of tangential contact forces applied to the node
 $S$
 Extrapolated surface of segments connected to the node
 The stress or strain of the corner node is computed using bilinear extrapolation of the shape function from stress or strain at integration points of each element which are connected to this node. For thick shell properties, bilinear extrapolation is computed using integration points of upper and lower layers.