4. General resolution flow chart

After evaluating the behavior of the concrete, the model evaluates the contribution of the reinforcement. This notice is intended to explain only this contribution; that of concrete will not be described here. Its detailed law of behavior is presented in the notice [R7.01.30]. The flowchart presented below summarizes the main steps in solving the calculation to take into account reinforcement homogenized with concrete.

Figure 4: Resolution flow chart

As said above, the first consideration induced by these homogenized reinforcements is the hypothesis of perfect adhesion. As a result, the final deformation of the concrete is recovered and the stress in the reinforcement is deduced therefrom. The stress is therefore subject to a plasticity criterion. If this one is active, the reinforcement is plasticized and an iteration is made to re-evaluate the value of its stress by considering the induced plastic deformation.

Once the stress of the reinforcement has been obtained, it is the damage to the concrete that we will consider. In fact, if the reinforced element is cracked, the Stud Effect is considered to evaluate the partially cracked resultant as well as its partly healthy reduction. Finally, the stress of reinforced concrete is deduced by combining these constraints with those of concrete using the homogenization law.