Abstract：The computational inverse technique is proposed for determination of dynamic constitutive model damage parameters of brittle ceramic using the ceramic/window interface velocity profile response under plate impact. The shock wave translating in fly-plate, sample and window is represented by simulation. The relationship of the interface velocity profile response and constitutive parameters is studied. Examples are presented to demonstrate this inverse technique for characterizing the material property from response is very robust. Using the GA and the interface velocity profile response inversely determines constitutive model parameters. This method obtains the need parameters under high strain rates rapidly, which determined difficultly and expensively by traditional method.
2011, Vol. 32 
