Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 23, 2018 - November 25, 2018
A scale dependency of plastic deformation, i.e., a smaller crystal grain provides a higher flow stress, is an important characteristic of metallic materials. In the higher-order gradient plasticity, an additional governing equation expressing the dislocation field is introduced to represent the scale effect. In this study, the reproducing kernel particle method (RKPM) is introduced to solve the higher-order crystal plasticity. The numerical integration scheme is essential in a meshfree analysis. In this study, the Gauss quadrature and the stabilized conforming nodal integration (SCNI) are introduced. The accuracy of both integration schemes is evaluated. It is shown that the performance of the SCNI in the higher-order gradient plasticity analysis is better than that of the Gauss quadrature.
