High-Strain-Rate Material Modelling Best Practices
Best practices for material modelling at high strain rates — constitutive model selection, parameter calibration, thermal coupling and verification.
Key practices
- Use rate-dependent constitutive models (Johnson-Cook, Cowper-Symonds, etc.)
- Calibrate from high-rate test data (split Hopkinson bar)
- Include thermal coupling for adiabatic heating
- Use rate-dependent failure criteria
- Do not use quasi-static data for high-rate analysis
- Document all material data sources and parameter identification