Multi-Material Topology Optimization of Thermo-Elastic Structures with Stress Constraint

This paper proposes a multi-material topology optimization formulation for thermo-elastic structures considering coupled mechanical and uniform thermal loads. The ordered-SIMP multiple materials interpolation model is introduced, combined with examples structural volume minimization under stress constraints. p-norm function the adjusted coefficient was adopted to measure global maximum stress. adjoint variable method presented discuss sensitivity of constraints, moving asymptotes (MMA) utilized update design variables. results demonstrate that clear topologies are obtained complicated material combinations various temperature values. Meanwhile, optimized configuration constraints has variations. Therefore, proposed demonstrates necessity influenced by in optimization.