Abstract
In order to investigate the dynamic mechanical properties and the constitutive model of concrete subjected to impact loadings, concrete is considered a two-phase composite consisting of micro-cracks and intact matrix. The intact matrix is assumed to be elastic, homogeneous and isotropic, and the micro-cracks are penny-shaped. Based on the average stress concept of Mori-Tanaka and equivalent inclusion theory of Eshelby, a one dimensional constitutive model is developed to describe the impact responses of concrete. At the same time, the evolution of micro-crack damage is also given. The model predictions fit well with the experimental results.
| Original language | English |
|---|---|
| Pages (from-to) | 42-44+100 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 31 |
| Issue number | SUPPL.1 |
| Publication status | Published - Oct 2011 |
Keywords
- Concrete
- Dynamic constitutive model
- Impact loading
- Micro-mechanics