Modeling of Interfacial Debonding Analysis for Reinforced Concrete Based on ADINA

Reinforced concrete (RC) can work normally in actual engineering, which depends on well interfacial bond strength between reinforcing steel bar and concrete. Interfacial debonding is one of the main damage forms for RC and its structure. Relative sliding or interfacial debonding may occur under external loading, especially cyclic loading. Cyclic loading exists in many projects, for example, ocean platform and crane girder. Finite element model for interfacial debonding investigation of RC under cyclic loading is designed as basis of ADINA. The friction between reinforcing steel bar and concrete is defined, and bond stress-slippage relationship between concrete and reinforcing steel bar is established. According to the calculating result, effects of reinforcing steel bar type and anchor depth on interfacial fatigue are analyzed. It can provide effective numerical ideal and method for investigation of RC lasting quality.