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ADINA예제[ADINA] 접촉해석을 위한 다양한 설정

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2020-11-24
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Contact Analysis:
Modeling Considerations

접촉해석을 위한 다양한 설정

Overview
● Challenges
● Basic tools
● Understanding diagnostics
● Contact definition guidelines
● Compliance usage and consequences
● Initial penetrations
● Frictional contact
● Simplifications and conditioning









Why is Contact so Challenging?
● Strong, discontinuous nonlinearity
- In or out of contact
- Slipping or sticking
● Interaction with other aspects of model
- Element formulations
- Mesh size (spatial discretization)
- Time steps (temporal discretization)
● Potential for modeling errors
- Surface definitions and contact search
- Contact and solution parameters





Important Tools & Techniques

▷ Enabling detailed diagnostics
- Selecting and assigning contact surfaces
- Choosing the correct elements/mesh
- Judicious use of contact compliance
- Suppressing oscillations
- Properly handling initial penetrations
- (Temporary) problem simplification

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