What's New

R2022x FD01 (FP.2205)

New Simulation Example: Hyperelastic-Viscoelastic Material Calibration for Butyl Rubber

This example teaches you how to use stress-strain test data and the Material Calibration app to calibrate a material response for a sample of butyl rubber.

Because butyl rubber is viscoelastic, calibrating the material's response requires you to perform the following steps:

Load multiple stress-strain data sets of varying strain rates.
Define a hyperelastic-viscoelastic material model with a 5-term Prony Series to calibrate the rate-dependent material response.
Place more emphasis on the test data recorded at low strain rates than test data recorded at high strain rates.
Select an optimization algorithm that is suited for the test data.

The following figure illustrates the five test data sets that you import to calibrate the material response:

Benefits: This example introduces more advanced features in the Material Calibration app that were not covered by Elastic and Plastic Material Calibration of Aluminum.

For more information, see Hyperelastic-Viscoelastic Material Calibration of Butyl Rubber

Improved Simulation Example: Submodel Analysis of a Driveshaft Assembly

This example now includes publications to help you select surfaces for contact interactions more efficiently.

Publications are named references to geometric entities in parts, assemblies, or other representations. You can access published entities by clicking the corresponding publication in the tree instead of selecting the entity from the 3D area. Publications are particularly helpful when the entity is part of a complex assembly that makes it difficult to access the entity directly. In this example, the surfaces involved in contact interactions are provided as publications in the 3D XML file. You use these publications to define the contact interactions.

Benefits: The addition of publications to this example makes it easier for you to define contact interactions for the driveshaft assembly.

For more information, see Submodel Analysis of a Driveshaft Assembly

Improved Simulation Example: Antenna Coverage Analysis for an Aircraft

This example now includes coverage tests in its workflow.

Coverage tests are useful for simulations with multiple antennas. A coverage test defines which installed antenna is the active antenna and which installed antenna (if any) are the passive antennas. The passive antennas behave as obstacles in the active antenna's installed environment.

In this example, there are no passive antennas. However, you must create one coverage test for each placement candidate that you plan to simulate.

Benefits: The addition of coverage tests supports a more general workflow for antenna placement trade-off studies.

For more information, see Electromagnetics: Antenna Coverage Analysis for an Aircraft

R2022x GA

New Simulation Example: Heat Exchanger Efficiency

This example guides you through performing an analysis of a shell-and-tube heat exchanger to determine its efficiency.

You determine its efficiency by investigating the coolant fluid's pressure, temperature, and mass flow, in addition to generating streamlines of the flow.

For more information, see Heat Exchanger Efficiency