Training Course Descriptions
Obtaining a Converged Solution
with Abaqus
Objective:
Obtaining converged solutions for highly nonlinear
simulations can sometimes be challenging. Difficulties can
arise, especially in simulations involving contact,
complicated material models, and geometrically unstable
behavior. Many years of practical experience in
understanding and resolving convergence issues have
been condensed into this course.
Using both workshops and practical examples in the
lectures, you will learn:
- How nonlinear problems are solved in Abaqus
- How to develop Abaqus models that will converge
- How to identify modeling errors that cause models to
experience convergence difficulties
- How to recognize when a problem is too difficult or too
ill-posed to be solved effectively
Who should attend:
This course is recommended for engineers with
experience using Abaqus/Standard.
Agenda (May vary with location)
| Day 1 |
Introduction to Nonlinear FEA
Workshop: Nonlinear Spring
Nonlinear FEA with Abaqus/Standard
Solution of Unstable Problems
Why Abaqus Fails to Find a Converged Solution
Convergence Problems: Contact Simulations
Workshop: Beam Lift-Off
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| Day 2 |
Convergence Problems: Element Behavior
Workshop: Element Selection
Convergence Problems: Constraints and Loading
Convergence Problems: Materials
Workshop: Limit Load Analysis
Workshop: Ball Impact
|
 |
Many assembly processes involve highly
nonlinear motions of the components. Obtaining a converged solution is
challenging when components snap together, as occurs when the pipe is pushed into the
plastic clip. The nodes shown in red have difficulties resolving the
changing contact conditions in the assembly. This seminar will explain the modeling techniques necessary to solve such challenging problems.
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Course was last updated May 2009
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