Selection method of costitutive equations

摘要

the present invention is to provide a selection of constitutive equation proposed method with a simple equation for the best configuration information for the metallic material for that purpose. The present invention for achievement of the objectives of the above, in the configuration equation selection method for selection of a constitutive equation that represents the mechanical behavior of the metal alloy through the device, using a plurality of materials to stress and the data of the strain by a tensile test test data acquisition step of obtaining a storage device; Parameter calculating step using the obtained data with the actual stresses and strains which calculates and stores the configuration parameters of the equation via the terminal; Input material information and storing the name of the material through the device; Error extracting an error of the permissible strength and ultimate strength of the material corresponding to the input via the terminal; And it characterized in that it comprises a ; and the configuration of the equation representing the lowest error extracted in the phase error equation configuration determining and outputting to the terminal. ;