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作者:

Ye, Hong-ling (Ye, Hong-ling.) (学者:叶红玲) | Yuan, Bo-shuai (Yuan, Bo-shuai.) | Li, Ji-cheng (Li, Ji-cheng.) | Zhang, Xing (Zhang, Xing.) | Sui, Yun-kang (Sui, Yun-kang.)

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摘要:

A geometrically nonlinear topology optimization method for continuum structures is proposed based on the independent continuous mapping method. The stress constraint problem is studied due to the importance of structural strength in engineering applications. First, a topology optimization model is established for a lightweight structure with element stress as constraints. Second, the stress globalization method is adopted to convert local stress constraints into strain energy constraints, which overcomes the difficulties caused by local stress constraints, such as model establishment, sensitivity analysis, and massive solution calculations. Third, the sensitivity of the objective function and constraint function is analyzed, and the method of moving asymptotes is employed to solve the optimization model. In addition, the additive hyperelasticity technique is utilized to solve the numerical instability induced by structures undergoing large deformation. Numerical examples are given to validate the feasibility of the proposed method. The method provides a significant reference for geometrically nonlinear optimization design.

关键词:

Geometric nonlinearity Stress globalization ICM method Stress constraints Topology optimization

作者机构:

  • [ 1 ] [Ye, Hong-ling]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 2 ] [Yuan, Bo-shuai]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 3 ] [Li, Ji-cheng]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Xing]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 5 ] [Sui, Yun-kang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

通讯作者信息:

  • 叶红玲

    [Ye, Hong-ling]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

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来源 :

ACTA MECHANICA SOLIDA SINICA

ISSN: 0894-9166

年份: 2021

期: 5

卷: 34

页码: 658-672

2 . 2 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:87

JCR分区:3

被引次数:

WoS核心集被引频次: 14

SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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