Stress-based topology optimization using BESO method with incremental structural nonlinear analysis

Author:

Zhang Hu-zhi1,He Qing-chao1,Chen Zhan-dong1,Feng Fei-fan1,Yin Bin1

Affiliation:

1. Hunan University of Science and Technology

Abstract

Abstract To enhance the applicability of optimization methods in civil engineering, particularly for structural members utilizing cement-based materials like concrete, this study introduces a stress-based topology optimization approach employing the Bi-directional Evolutionary Structural Optimization (BESO) method in conjunction with incremental structural nonlinear analysis. The primary objective of this method is to minimize the peak equivalent stress experienced by the structural components. It relies on the utilization of the p-norm condensation function to approximate the peak equivalent stress, alongside the establishment of sensitivity through the adjoint method. This method has demonstrated its aptness in optimizing structures containing highly nonlinear material constituents. By configuring the p-value within a specified range of 4–6 during the optimization process, consistent achievement of solutions aligned with the predefined objectives, based on element sensitivity, is feasible. This sensitivity is derived by applying a filter to the initial sensitivity calculated from the stress outcomes of the incremental structural nonlinear analysis. Subsequently, the data is meticulously filtered to procure a more robust and dependable solution that aligns more closely with the overarching optimization objective.

Publisher

Research Square Platform LLC

Reference35 articles.

1. Generating optimal topologies in structural design using a homogenization method;Bendsøe MP;Computer Methods in Applied Mechanics and Engineering,1988

2. Topology and sizing optimization of truss-like pedestrian bridges with viscous dampers and inerters;Ben-Israel NI;Journal of Structural Engineering,2023

3. On an alternative approach to stress constraints relaxation in topology optimization;Bruggi M;Structural and Multidisciplinary Optimization,2008

4. Stiffness design of geometrically nonlinear structures using topology optimization;Buhl T;Structural and Multidisciplinary Optimization,2000

5. Topology optimized design, fabrication, and characterization of a soft cable-driven gripper;Chen FF;IEEE Robotics and Automation Letters,2018

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