Determination of material parameters of textile reinforced cementitious composite exposed to high temperatures using an inverse method

In this paper the textile reinforced concrete under study is essentially composed of two brittle materials. Using a textile reinforcement results in a fibre volume fraction which is exceeding the critical. If so strain hardening occurs. The material parameters are computed by using an inverse method. The method is based on a bending model which uses an iterative process for the determination of the model parameters by minimizing the cost function of likeness between the computed and the measured force - displacement. The material parameters are derived from the model parameters. The material parameters obtained from the inverse method are compared with the experimental values.

Publication year:2012

Keywords:Textile reinforced cement, inorganic phosphate cement, inverse method, ACK model, Bending behaviour