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Key Features of ALGOR V23
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As a major software release, ALGOR V23 provides significant upgrades in all areas:
modeling, analysis and results evaluation and presentation.
New and improved features include:
models created in ThinkDesign can be opened in ALGOR for fully associative analysis;
additional material models (Ogden and Mooney-Rivlin hyperelastic and viscoelastic)
for membrane elements expand nonlinear analysis capabilities for
rubber materials;
"smart" bonded contact uses multi-point constraints to bond the surfaces of unmatched meshes,
making hand-built models easier to tie together and CAD models easier to mesh;
expanded implementation of the multifrontal massively parallel solver (MUMPS) for distributed memory systems
on both Linux and Windows clusters, using both in-core and out-of-core memory for faster solution of linear and nonlinear stress and fluid flow models;
and improved 2-D steady fluid flow analysis, now applying all the capabilities of the 3-D processor to
2-D models
including faster solution for fluid flow with high Reynolds numbers and turbulence.
V23 also includes:
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InCAD support for ThinkDesign - New in V23, models created in ThinkDesign v2008.1 from
think3, Inc. can be opened in ALGOR for fully associative analysis.
This seamlessly integrated design-and-analysis solution allows users to create 3-D product designs in ThinkDesign
and then simply use a menu option to open the exact geometry in ALGOR for analysis.
Additionally, through an industry-standard plug-in architecture,
ALGOR's InCAD technology provides full associativity with ThinkDesign – allowing users to make iterative design changes without needing to redefine FEA loads,
constraints and other data.
The image shows how ALGOR's InCAD technology provided direct CAD/CAE data exchange of an assembly modeled in think3's ThinkDesign (upper left).
An ALGOR linear static stress analysis (lower right) was performed to determine stresses from the applied loads.
think3, the think3 logo and ThinkDesign are among the registered and unregistered trademarks of think3 Inc.
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New rubber material models for membrane elements -
Additional rubber material models (Mooney-Rivlin and Ogden hyperelastic and viscoelastic) are available for membrane elements
in Mechanical Event Simulation and nonlinear stress analyses.
As shown here, the new rubber material models for membrane elements can be accessed via the "Element Definition" and
"Element Material Specification" dialogs in the FEA Editor environment of FEMPRO®.
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Smart bonded contact -
For an assembly where adjacent parts have unmatched meshes (i.e., the nodes are not coincident),
a new option for smart bonded contact can be activated in linear static stress, natural frequency (modal) and transient stress (direct integration) analyses.
Smart bonding is a method to connect the nodes on adjacent parts even though the meshes do not match,
making hand-built models easier to tie together and CAD models easier to mesh.
The two bonded surfaces will be in perfect contact throughout the analysis, and the loads will be transmitted from one part to the adjacent part.
For example, in a stress analysis, when a node on one surface deflects, the node on the adjoining surface will deflect the same amount in the same direction.
This is done using the same method as multi-point constraints.
For brick and 2-D elements, the translations are linked.
For plate elements, the translations and rotations are linked.
As shown here, although the mesh does not match between the yellow and red parts of this assembly, smart bonding joins them together as if the mesh were matched.
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Expanded MUMPS support for distributed memory systems -
The multifrontal massively parallel solver (MUMPS) was
introduced in V22
for in-core distributed memory systems (using 4 to 32 processors to solve an analysis) on Linux clusters.
In V23, MUMPS support has been added for Windows clusters for faster solution of linear and nonlinear stress and fluid flow models.
In addition, support for out-of-core memory has been added for both Linux and
Windows clusters.
As shown here, the "Windows MPI Cluster Options" dialog can be used to define Windows clusters
for distributed memory computing using the MUMPS sparse solver.
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Improved 2-D steady fluid flow analysis -
In V23, 2-D fluid elements have been incorporated into the 3-D processor for steady fluid flow,
providing improved analysis capabilities for 2-D models including:
- robustness, especially for high Reynolds number in turbulence region
- use of segregated solver, which is faster and more efficient for large models
- multiple rotating frames of reference
- porous media parts combined with "regular" fluid parts
- meshes can be constructed with 4-node and/or 3-node elements
The image shows that, in V23, the same segregated solver that is used for 3-D steady fluid flow can now also be specified for 2-D steady fluid flow.
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Create beams from the centroids of surfaces -
V23 provides a new "Centroid Creator" utility to create a construction vertex at the centroid of a surface (or collection of surfaces)
and, optionally, generate connecting beam elements.
Hence, the utility automates the process of replacing non-essential surfaces with beams, thereby reducing model size and promoting faster analysis.
For example, consider the model shown here. The surfaces of a rod between two clamps (upper left) were selected and then the "Centroid Creator" utility was used
to create vertices and beam elements that replaced the rod surfaces (lower right).
Replacing the non-essential rod geometry with equivalent beam elements reduced the model size and allowed the analysis to run faster.
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Separate load curves for multiple prescribed velocities -
In fluid flow analysis, separate load curves can be defined for multiple prescribed velocities, providing increased control and flexibility.
As shown here, each prescribed velocity can be assigned to a separate load curve.
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Stress and strain results for midside nodes -
In V23, stress and strain results for midside nodes can now be displayed in the Results environment, providing additional data for examining model behavior.
To see these additional results, activate the option "Stress/strain at midside nodes (binary)" on the "Analysis Parameters" dialog before performing the analysis as shown here.
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Beam code checking for MES -
Beam code checking can now be performed on MES and nonlinear stress models that include beam elements.
V23 automates the process of verifying compliance with the industry-standard
Allowable Stress Design (ASD) from the American Institute of Steel Construction (AISC).
After analysis, set up the code checking parameters and run the utility within
the Results environment.
Then, review the code checking results, either graphically or by generating reports as shown here.
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Improved report generation -
V23 provides improvements for report generation including the ability to save selected results directly to the report as a customizable appendix.
As shown here, use the "Inquire: Results" dialog within the Results environment to select results and then click the "Save to Report" button;
use the "Export Results" dialog to specify a filename; the results will be automatically appended to the report.
The text can be further adjusted in the Report environment's "Configure Report" window.
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