Abstract
This paper presents a numerical model to simulate the interface fracture behavior of concrete strengthened with composite plate. The developed model uses lattice-based elements and nonlinear fracture mechanics concepts are addressed to investigate the interface failure behavior. The material properties for concrete and interface are assigned probabilistic, and a normal distribution with c.o.v 10% is used for the probabilistic approach. Numerical simulations of direct shear specimen and four point bending RC beams are conducted to investigate the interface bond stress distribution, load-displacement response and failure mechanism. Parameter studies are carried out to investigate the effect of interface material properties-elastic modulus, tensile strength, and fracture energy-on the behavior of concrete specimen strengthened with external composite plate. The predicted responses from the numerical analysis are found to be in good agreement with experimental values.
| Original language | English |
|---|---|
| Pages (from-to) | 403-412 |
| Number of pages | 10 |
| Journal | Composite Structures |
| Volume | 82 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2008 Feb |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Civil and Structural Engineering