I have been using the concrete material models in ABAQUS to simulate the three point bending test for fibre reinforced concrete specimens and to predict the load-deflection curves by assuming a stress-crack width relation. I am now wondering whether it is also possible to input actual load-deflection test data and then get ABAQUS to perform an inverse analysis of this load-deflection data in order to obtain the stress-crack width relations for the material? If so, I would appreciate some advice on how to go about this and also of any known reference to similar work.

Thanks