Dynamic Behavior of Concrete: Constitutive Models - Dynamic Behavior of Concrete and Seismic Engineering - page 83

- Model data: criterion of plasticity (4-parameter modified Willam-Warnke's
criterion). Coupling takes place in the following way:
- the coefficients of elasticity (K and G) evolve with the inelastic strain;
- a strain-hardening parameter depends on cracking.
Figure 2.19. Trace of Willam Warnke's criterion in
the deviatoric plane (from [ULM 93])
2.6.5. Model coupling damage and mechanics of porous media
2.6.5.1. Burlion
- Reference: [BUR 97].
- Principle: porous media [COU 91], visco-plasticity and 1-parameter scalar
damage.
- Application field: high-pressure dynamic loadings.
- Can model: compaction, damage.
- Cannot model: sliding (explicitly).
- Model data: the threshold surface of elasticity used is adapted from Gurson's
criterion [GUR 77] initially used for some metals.