Damage Parameters Identification Based on Experimental Data for Advanced Steel Matrix Composite

In metal forming, improving the performance of the final products involves mainly understanding, reducing and predicting damage during forming. Damage models and mechanical behavior are coupled to simulate the material’s progressive softening as a result of damage increase. However, identifying damage parameters is still challenging researchers. In this paper, main damage mechanisms are presented for a Fe-12% TiB2 Steel Matrix Composite SMC under monotonic simple shear tests. A sensitivity analysis approach is setup identify ductile damage parameters, based on experimental results for both the considered SMC and a ferritic steel representative of the composite matrix. Optimization algorithm enables the identification of a set of damage parameters that provides a suitable correlation between numerical and experimental stress-strain for both Fe-TiB2 SMC and the ferritic unreinforced steel.