TY  - EJOU
AU  - Murthy, A Rama Chandra 
AU  - Gopinath, Smitha  
AU  - Shrivastav, Ashish  
AU  - Palani, G. S. 
AU  - Iyer, Nagesh R.  

TI  - Fracture Mechanics Based Model for Fatigue Remaining Life Prediction of RC beams Considering Corrosion Effects
T2  - Computers, Materials \& Continua

PY  - 2011
VL  - 25
IS  - 1
SN  - 1546-2226

AB  - This paper presents methodologies for crack growth study and fatigue remaining life prediction of reinforced concrete structural components accounting for the corrosion effects. Stress intensity factor (SIF) has been computed by using the principle of superposition. At each incremental crack length, net SIF has been computed as the difference of SIF of plain concrete and reinforcement. The behaviour of reinforcement has been considered as elasto-plastic. Uniform corrosion rate has been assumed in the modeling. Corrosion effect has been accounted in the form of reduction in the diameter and modulus of elasticity of steel. Numerical studies have been carried out to validate the methodologies. It is observed that the predicted remaining life for RC beam without corrosion effects is significantly larger compared to plain beams. The predicted remaining life decreases with increase in percentage of corrosion.
KW  - Plain concrete
KW  -  Reinforced Concrete
KW  -  Stress Intensity Factor
KW  -  Crack growth
KW  -  Remaining life
KW  -  Corrosion

DO  - 10.3970/cmc.2011.025.001