Solution of material constant identification problem based on the adjoint variable method

抄録

Appropriate material constants are essential for performing finite element analysis of industrial equipment. The material constant identification problem is typically formulated as an optimization problem. This paper presents a gradient-based method to solve this problem in an efficient and accurate manner. The adjoint variable method is applied to derive gradients, and the material constants are subsequently updated using the Newton–Raphson method. Numerical examples based on iron cores, widely used in industrial equipment, demonstrate the effectiveness of the proposed method.