Implicit
During the past few years, the options provided in LS-DYNA to perform simulations with implicit time integration have been significantly extended. Implicit analyses are mainly used for linear and non-linear static simulations, natural frequency analysis, spring-back simulations, long-term transient computations, and pre-stressed systems.
This seminar aims to provide attendees with an overview of the options of, and limitations to, implicit analysis methods using LS-DYNA. The seminar will also focus on the discussion of the input cards required for such analysis.
The seminar is designed for engineers intending to use LS-DYNA to carry out implicit analysis. Also, experienced 'explicit' users have the opportunity to learn more about the key issues to bear in mind when converting an explicit to an implicit input file. The seminar will include examples to illustrate the functionality of the implicit options.
Content:
- When does it make sense to perform implicit vs. explicit analysis?
- Current options to carry out implicit analysis using LS-DYNA (material, available element types, contacts...)
- How is the input syntax for implicit control cards structured?
- Difference between explicit and implicit analysis demonstrated by examples
- Natural frequency analyses
- Which types of elements to use for an implicit analysis?
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Iterative and direct equation solvers in theory and practice.
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Nonlinear solvers: Newton, BFGS, ..
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Modal analysis
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Stress Initialization Implicit/Explicit, Explicit/Implicit, and multi-steps simulations
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New implicit features: switching implicit/explicit, joints, ...
Basic LS-DYNA knowledge or attendance of seminar 'Introduction to LS-DYNA' are recommendable.
| Dates | Registration | Calendar | Duration/days | Location | Lecturer | Fee | Language |
| 25.09.2012 | Register |
|
2 | Stuttgart |
Prof. M. Pitzer, Dr. T. Erhart
(FH Gießen Friedberg, DYNAmore)
|
900,- EUR | german |
