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- W3043348319 abstract "This article presents a novel formulation for geometric nonlinear topology optimization problems. In practical engineering, maximum deflection is frequently used to quantify the stiffness of continuum structures, yet not applied generally as the optimization constraint in geometrically nonlinear topology optimization problems. In this study, the maximum nodal displacement is formulated as a sole constraint. The p-mean aggregation function is adopted to efficiently treat a mass of local displacement constraints imposed on nodes in the user-specified region. The sensitivities of the objective and constraint functions with respect to relative densities are derived. The effect of the aggregate parameter on the final design is further investigated through numerical examples. By comparison with final designs from the traditional formulation, i.e. minimization end compliance with the volume fraction constraint, or minimization of total volume subject to multiple nodal displacement constraints, the optimized results clearly demonstrate the necessity for and efficiency of the present approach." @default.
- W3043348319 created "2020-07-23" @default.
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- W3043348319 date "2020-07-15" @default.
- W3043348319 modified "2023-10-10" @default.
- W3043348319 title "A new geometrically nonlinear topology optimization formulation for controlling maximum displacement" @default.
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- W3043348319 doi "https://doi.org/10.1080/0305215x.2020.1781106" @default.
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