This dissertation addresses various issues in adjoint sensitivity analysis for geometric and material nonlinear structural systems. Analytical formulations of correction terms and load step reduction strategies are proposed and theoretically proven, which improve the accuracy and efficiency of sensitivity analysis. These techniques are demonstrated through engineering examples ranging from small to large scale. The applicability of these techniques is discussed, encompassing small and finite strain elastoplasticity, isotropic, kinematic, and mixed hardening material models.
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This dissertation addresses various issues in adjoint sensitivity analysis for geometric and material nonlinear structural systems. Analytical formulations of correction terms and load step reduction strategies are proposed and theoretically proven, which improve the accuracy and efficiency of sensitivity analysis. These techniques are demonstrated through engineering examples ranging from small to large scale. The applicability of these techniques is discussed, encompassing small and finite str...
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