.h3d file

The .h3d file is a compressed binary file, containing both model and result data. It can be used to post-process results in HyperView or when using the HyperView Player.

File Creation

The .h3d file is created when the H3D format is chosen (see I/O Option OUTPUT), and an analysis only run is performed (meaning no design variables or design spaces are defined in the model); the I/O Option ANALYSIS is present; or the command line switch -analysis is used (see Run Options for OptiStruct).

File Contents

The .h3d file contains node and element definitions in addition to the following results:

Result	Description
Acceleration	Acceleration results from frequency response, acoustic, transient response, and multi-body dynamics analyses. Output is controlled by the I/O option ACCELERATION.
Composite ply strain	Ply strain results for composite materials from static analyses. Output is controlled by the I/O Option STRAIN and by the SOUTi field on the PCOMP definition.
Composite ply stress	Ply stress results for composite materials from static and analyses. Output is controlled by the I/O Option STRESS and by the SOUTi field on the PCOMP definition.
Composite failure indices	Failure indices for composite materials from static analyses. Output is controlled by the I/O Option STRESS, by the SOUTi, SB and FT fields on the PCOMP definition and by the related fields on the relevant material definition (see MAT1, MAT2, MAT8).
Density	Density results from topology optimizations. Output is controlled by the I/O Option DENSITY.
Displacement	Displacement results from static, frequency response, acoustic, transient response, and multi-body dynamics analyses. Output is controlled by the I/O Option DISPLACEMENT.
Eigenvector	Eigenvector results from normal modes and linear buckling analyses. Output is controlled by the I/O Option DISPLACEMENT.
Element energy loss per cycle	Element energy loss per cycle and energy loss per cycle density output from frequency response analysis. Output is controlled by the I/O Option EDE.
Element force	Element force results from static, frequency response, acoustic, and transient response analyses. Output is controlled by the I/O Option FORCE (or ELFORCE).
Element kinetic energy	Element kinetic energy and kinetic energy density output from frequency response analysis. Output is controlled by the I/O Option EKE.
Element strain energy	Element strain energy and strain energy density results from static, normal modes and frequency response analyses. Output is controlled by the I/O Option ESE.
Grid point stress	Grid point stress results for 3D elements from static and normal modes analyses. Output is controlled by the I/O Option GPSTRESS (or GSTRESS).
Power flow field	Power flow field output from frequency response and acoustic analyses. Output is controlled by the I/O Option POWERFLOW.
Shape	Shape results from topography or shape optimizations. Output is controlled by the I/O Option SHAPE.
SPC force	Single-point force of constraint results from static, frequency response, acoustic, and transient response analyses. Output is controlled by the I/O Option SPCFORCE.
Strain	Strain results from static, frequency response, acoustic, transient response, and multi-body dynamics analyses. Output is controlled by the I/O Option STRAIN.
Stress	Stress results from static, frequency response, acoustic, transient response, and multi-body dynamics analyses. Output is controlled by the I/O Option STRESS (or ELSTRESS).
Thickness	Thickness results from size and topology optimizations. Output is controlled by the I/O Option THICKNESS.
Velocity	Velocity results from frequency response, acoustic, transient response, and multi-body dynamics analyses. Output is controlled by the I/O option VELOCITY.

Comments

1.	Grid point stresses are output for the entire model and for each individual component. This allows grid point stresses to be accurately obtained at the interface of two components referencing different material definitions.

2.	For dynamic analyses like frequency response, transient response, and multi-body dynamics, it is recommended that sets be used to reduce the amount of model and results output data. The output file can become very large since results are output for each frequency or time step.