Generative Part Structural Analysis
(GP1) - P1, (GPS, MGS) - P2

General Issues

Associativity Part Features vs. CATAnalysis Document
If you delete the last feature in the specification tree of a part linked to the analysis document, the analysis specifications may be lost. You must re-define the design specifications to be applied to each analysis feature specification.
Recommended methodology: Create a dummy feature to be the last feature in the specification tree, and insert all new design features before the dummy feature.
Visualization of Analysis Specifications
When you modify the design and return to the Generative Structural Analysis workbench, the preprocessing specifications are not automatically displayed.
Workaround: Double-click the analysis specifications in the specification tree to edit the specifications.
2D Display and Undo Command
The creation and the edition of a 2D display does not support the Undo command.
Workaround: Delete the 2D display.
Improving Performance on Windows using the Intel Math Kernel Libraries (MKL)
To improve performance, download the Intel MKL library from the following Intel web site:
http://developer.intel.com/software/products/index.htm
To install the MKL, you just have to execute the downloaded file. Then, add the following string to your PATH environment variable:
  • 32-bit: C:\Program Files\intel\MKL\XX\ia32\bin (where XX is the level of MKL)
    The supported MKL versions are 6, 7, 8 and 9.
  • 64-bit: C:\Program Files\intel\MKL\XX\em64t\bin (where XX is the level of MKL)
    The supported MKL versions are 8 and 9.

Warning:

  • MKL 10.0 and upper versions are not supported.
  • You may have to pay Intel to use some libraries.
Replacing a .CATPart in a .CATAnalysis Document
It is strongly recommended to use publications to replace a .CATPart by another one in a .CATAnalysis document.
  1. Publish all the geometries that are the supports of analysis specifications (mesh parts, properties, preprocessing specifications...) using the Tools > Publication... menu.
  2. Make sure the published geometries of the new .CATPart are named as the published geometries of the replaced .CATPart.
  3. Replace the CATPart using the Edit > Links... menu.
Change in Shell Element Formulation
The average normal vector is now used for shell elements.

where:

  • L is the element length.
  • is the angle between the element normal and the average normal.
  • R is the estimated curvature radius

When the angle between the element normal and the average normal is smaller than an arbitrary value (SNORM) and if the ratio between the curvature radius and the thickness is greater than two, the average normal is used instead of the element normal for all the shell elements (TR3, TR6, QD4 and QD8). The default value of SNORM varies depending on the release.

  • For Version 5 Release 18: SNORM = 0 degrees
  • For Version 5 Release 19, Version 5 Release 19 SP1 and Version 5 Release 19 SP2: SNORM = 5 degrees
  • From V5R19SP3: SNORM = 20 degrees

This can slightly modify the computation results.

Left-handed Axis System
  • Before Version 5 Release 17, the selection of left-handed axis systems was authorized.
    Only the X and Y coordinates are used: the Z coordinate is obtained by the cross product of the X and Y coordinates (Z = X x Y) satisfying the right-hand rule.
    It is possible that some preprocessing data are not in desired sense.

  • From the Version 5 Release 17, it is not possible to select left-handed axis systems anymore.
    The models built with left-handed axis system are invalidated.

1D Property: Beam from Surface Option
Although the Beam from surface option belongs to the ELFINI Structural Analysis (EST) product, this option is available with the Generative Part Structural Analysis (GPS) product.
The choice of this option will not be taken into account by the solver if the ELFINI Structural Analysis (EST) product is not installed.

You must install the ELFINI Structural Analysis (EST) product for the Beam from surface option to be taken into account by the solver.

Properties and Transformed Mesh Parts

When applying a property to mesh part that has been transformed (by transformation), the transformed mesh part inherits this property.
The transfer of the properties between the parent mesh part and the transformed mesh part with multi-selection of supports may not have the desired behavior.
Workaround
: create several transformed mesh parts with mono-selection of support.

Integration with Product Engineering Optimization (PEO) Product

Do not use the local properties in the algorithm for constraints and derivative providers.

Local Sensors: Stress Von Mises

All the Stress Von Mises local sensors created before the V5R15 release are invalidated while opening a .CATAnalysis document.
You have to launch an update (using the Update Sensor or Update all Sensors contextual menus) or launch a computation (using the Compute icon).

Color Palette and Hide/Show
If you want to show a color palette that you hid using the Hide/Show capability, you have to recreate the image associated with the color palette.
Post-processing
Before the Version 5 Release 12:
  • for vector type data displayed as SYMBOL visualization type (for example: Translational displacement vector), minimum and maximum values (displayed in the color map) were always computed using the norm of the vector even when filtering on components.
     
  • for eigen values type data displayed as SYMBOL visualization type (for example: Stress principal tensor symbol), minimum and maximum values (displayed in the color map) were always computed over all the components.

These values are now computed according to the selected components.

Smoothing Post-treatment for 2D Properties

The smoothing process (element to node) has been modified for the 2D properties (Shell, Membrane, Shear Panel).

Previously the axis of the first found connected element was arbitrarily chosen.

The axis system at node is now the mean axis system of the adjacent elements for characteristics owning a local axis system.

This will change results when large angle is detected between elements connected to a node.
The image/sensor types (at Node position) impacted by this enhancement are: principal stress, stress symbol...

Interoperability
  • It is strongly recommended to manage interoperability of analysis documents with ENOVIA V5 (open, save and impact graph) using the VPM Navigator product.
  • "Analysis on a product saved in Explode mode" and "Data Mapping" capabilities are supported by the VPM Navigator product but not by ENOVIAVPM Version 4 and ENOVIA 3dcom.

Open Issues

None
 

Documentation

None