Metal plate impact dynamic anisotropic plasticity constitutive parameter global characterization method

• Main Authors: YANG ZEFEI, QI LEHUA, MA ZHEN, FU JIAWEI
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a metal plate impact dynamic anisotropic plastic constitutive parameter global characterization method, in particular to a metal plate dynamic anisotropic plastic constitutive parameter global characterization method based on a bilateral notch test piece high-speed impact experiment and a dynamic virtual field algorithm. According to the method, by establishing an anisotropic plastic constitutive model and a dynamic virtual field identification algorithm of model parameters of the anisotropic plastic constitutive model, a simple high-speed impact experiment of a double-side notch non-uniform plane test piece is designed and developed, and in the data of a high-speed deformation field and an inertial acceleration field of the test piece with rich positive strain and shear strain, all model parameters of the anisotropic plastic constitutive model of the metal plate under the dynamic condition can be accurately identified at one time. Compared with the prior art, the method has the advan