Failure model parameter identification method and related device

The invention provides a failure model parameter identification method and a related device, and the method comprises the steps: firstly obtaining a model parameter which is used for representing the structural characteristics of a material of a vehicle body structural member; then fracture structure data is obtained according to the model parameters; obtaining a test result obtained by carrying out a fracture test according to the fracture structure data and fracture damage types, wherein the fracture damage types comprise forward ductile fracture, shear failure fracture and necking failure fracture; and determining failure model parameters of the material of the vehicle body structural member according to a test result. Thus, the processing model can completely analyze various fracture damage types, complex states in the automobile collision process can be more completely covered, and the accuracy of collision state analogue simulation and analysis is improved.