Verification & Validation in LS-DYNA®
Instructor
- Professor Ala Tabiei
Verification & Validation in LS-DYNA®
Syllabus
This class aims to teach methods and procedures for validating and verifying simulation results. To ensure an error-free finalized design, analysts must verify the accuracy of the FEA solver as well as validate the results against experimental tests and other outputs. This class is intended for all LS-DYNA analysts and any other FE simulation engineers. Even though the presentation is geared towards using LS-DYNA, the methods and discussion are applicable to any other FE software.
Content
- Introduction
- Definitions of verification & validation
- Differences between verification & validation
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Variability in simulation results
- Things you have control over
- Things you do not have control over
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Introduction to MPP
- MPP versus SMP results
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Experimental data and lack of it
- Test repeatability
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Simulation results on different machines
- Single precision versus double precision
- Experimental outputs for verification & validation
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Verification & validation
- Methods
- Steps
- Procedures
- Quantitative versus qualitative validation
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Validation metrics
- Magnitude-Phase (MPC) metrics
- Single-value metrics
- Analysis of variance (ANOVA) metrics
- Mesh convergence criterion & verification
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Useful outputs
- d3hsp files
- messag files
- Validation in the frequency domain