Abstract
The constitutive equation and the damage evolution of cohesive zone model were described in detail. The damage process of material under mixed-mode loading has been derived based on energy criterions, such as BK (Benzeggagh-Kenane) law, power law and others. It is noted that during the derivation of the damage process, the transverse stiffness and normal stiffness of the material are presumed to be independent. The way to determine the damage evolution law and its parameters through the MMB(mixed-mode bending) experiment is provided. In addition the multinomial law proposed shows good agreement with the experimental result.
| Original language | English |
|---|---|
| Pages (from-to) | 714-718 |
| Number of pages | 5 |
| Journal | Jixie Qiangdu/Journal of Mechanical Strength |
| Volume | 33 |
| Issue number | 5 |
| State | Published - Oct 2011 |
Keywords
- Cohesive zone model
- Crack propagation
- Damage evolution
- Damage initiation
- Multinomial law