Option: Animation
You can also animate interface results over time:
Command(s):ANTIME
GUI: Utility Menu> PlotCtrls> Animate> Over Time
Other Capabilities
Many other postprocessing functions are available in POST1. See The General Postprocessor (POST1) in
the Basic Analysis Guide for details. Load case combinations usually are not valid for nonlinear analyses.
12.2.6.3. Reviewing Results in POST26.
You can also review the load-history response of a nonlinear structure using POST26, the time-history
postprocessor. Use POST26 to compare one ANSYS variable against another. For instance, you might
graph the interface separation vs. interface tension, which should correspond to the material behavior
defined by TB,CZM. You might also graph the displacement at a node versus the corresponding level
of applied load, or you might list the interface tension at a node and the corresponding TIME value.
A typical POST26 postprocessing sequence for an interface delamination analysis is the same as the
sequence for a typical nonlinear analysis. See steps 1 through 4 in Reviewing Results in POST26 (p. 253)
included in Nonlinear Structural Analysis (p. 193).
12.3. Modeling Interface Delamination with Contact Elements
Interface delamination with contact elements is referred to as debonding. Debonding is modeled with
contact elements which are bonded and have a cohesive zone material model defined. There are several
advantages to using debonding to model interface delamination. Existing models with contact definitions
can be easily modified to include debonding, and standard contact and debonding can be simulated
with the same contact definitions.
12.3.1. Analyzing Debonding
Modeling debonding with contact elements involves the same steps as any other contact analysis. (For
a detailed discussion on how to set up a contact analysis, see Surface-to-Surface Contact.) Therefore, if
you are familiar with setting up a contact analysis you can easily include debonding in your model. You
simply add a bonded contact option and a cohesive zone material model for the contact elements.
12.3.2. Contact Elements
Debonding can be defined in any model that includes the following types of contact:
- Surface-to-surface (CONTA171 through CONTA174)
- Node-to-surface (CONTA175)
- Line-to-line (CONTA176)
- Line-to-surface (CONTA177) contact
The contact elements must use bonded contact (KEYOPT(12) = 2, 3, 4, 5 or 6) with the augmented
Lagrangian method or pure penalty method (KEYOPT(2) = 0 or 1). Debonding is activated by associating
a cohesive zone material model (input with TB,CZM) with the contact elements.
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationInterface Delamination and Failure Simulation