• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Post-buckling optimisation strategy of imperfection sensitive composite shells using Koiter method and Monte Carlo simulation
【24h】

Post-buckling optimisation strategy of imperfection sensitive composite shells using Koiter method and Monte Carlo simulation

机译：缺陷敏感复合材料壳的屈曲后优化策略的Koiter方法和蒙特卡洛模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A numerical stochastic strategy for optimising composite elastic shells undergoing buckling is presented. Its scope is to search for the best stacking sequence that maximises the collapse load considering the post-buckling behaviour. Its feasibility is due to a reduced order model built for each material setup starting from a hybrid solid-shell finite element model exploiting a multimodal Koiter method. The approach has no limitations concerning geometry, boundary conditions and material properties distribution. The collapse load is evaluated using a Monte Carlo simulation able to detect the worst imperfection shape, including a posteriori the imperfections in the reduced order model. For a limited number of parameters the proposal allows to analyse all the possible layups. In the general case, it uses a Monte Carlo scanning of the design parameters with different levels of adaptability. The optimisation of curved panels, also with stiffeners, confirms the feasibility and reliability of the proposed strategy.
机译：提出了一种优化屈曲复合材料弹性壳的数值随机策略。考虑到屈曲后的行为，其范围是寻找最佳的堆垛顺序，以使倒塌载荷最大化。它的可行性归因于针对每种材料设置建立的降阶模型，该模型是从采用多峰Koiter方法的混合固体有限元模型开始的。该方法在几何形状，边界条件和材料属性分布方面没有限制。使用能够检测到最差的缺陷形状的蒙特卡洛模拟来评估塌陷载荷，包括降低阶次模型中的缺陷。对于有限数量的参数，该提议允许分析所有可能的叠层。在一般情况下，它使用具有不同适应性级别的设计参数的蒙特卡洛扫描。弯曲面板的优化，也带有加强筋，证实了所提出策略的可行性和可靠性。

著录项

  • 来源
    《Composite Structures》 |2018年第5期|654-670|共17页
  • 作者

    Liguori Francesco S.; Madeo Antonio; Magisano Domenico; Leonetti Leonardo; Garcea Giovanni;

  • 作者单位

    Univ Calabria, Dipartimento Ingn Informat Modellist Elettron & S, I-87036 Arcavacata Di Rende, Cosenza, Italy;

    Univ Calabria, Dipartimento Ingn Informat Modellist Elettron & S, I-87036 Arcavacata Di Rende, Cosenza, Italy;

    Univ Calabria, Dipartimento Ingn Informat Modellist Elettron & S, I-87036 Arcavacata Di Rende, Cosenza, Italy;

    Univ Calabria, Dipartimento Ingn Informat Modellist Elettron & S, I-87036 Arcavacata Di Rende, Cosenza, Italy;

    Univ Calabria, Dipartimento Ingn Informat Modellist Elettron & S, I-87036 Arcavacata Di Rende, Cosenza, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Composite shells; Post-buckling optimisation; Imperfection sensitivity; Finite element analysis;

    机译：复合材料壳;屈曲后优化;不完美灵敏度;有限元分析;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号