Implicit Time-Stepping DRBEM for Design Sensitivity Analysis of Magneto-Thermo- Elastic FGA Structure Under Initial Stress

摘要

The main objective of this paper is to evaluate the effects of functionally graded, rotation and initial stress on the displacement design sensitivities of the magneto-thermo-elastic functionally graded anisotropic (FGA) structures subjected to moving heat source. An implicit time-stepping scheme based on the dual reciprocity boundary element method (DRBEM) was used to obtain the temperature and displacement components. Also, an implicit differentiation of the discretized boundary integral equation with respect to design variables is used to calculate displacement design sensitivities of FGA structures with very high accuracy. The validity of the proposed method is examined and excellent agreement is obtained with existent results. The numerical results show our method is strong and efficient.