![]() The complete program for sensitivity analysis is given in the Appendix and is intended for educational purposes. The MATLAB code presented in this paper can be extended to resolve different stress related 3D topology optimization problems. ![]() Three typical volume-constrained stress minimization problems are presented to verify the effectiveness of sensitivity analysis code. The nonlinear optimization solver is chosen as the Method of moving asymptotes (MMA). The correctness of the analytical sensitivity is verified by comparison with finite difference approximation. The 3D sensitivity analysis for p-norm global stress measure is derived and explained in detail accompanied by corresponding MATLAB code. ![]() The 146 lines code includes the finite element analysis and p-norm stress sensitivity analysis based on the adjoint method. This paper presents an efficient and compact MATLAB code for three-dimensional stress-based sensitivity analysis. ![]()
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