...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering Structures >Asymptotic Sampling for reliability analysis of adhesive bonded stepped lap composite joints
【24h】

Asymptotic Sampling for reliability analysis of adhesive bonded stepped lap composite joints

机译：渐近采样法用于胶结阶梯搭接复合材料接头的可靠性分析

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

Reliability analysis coupled with finite element analysis (FEA) of composite structures is computationally very demanding and requires a large number of simulations to achieve an accurate prediction of the probability of failure with a small standard error. In this paper Asymptotic Sampling, which is a promising and time efficient toot to calculate the probability of failure, is underutilised, and a probabilistic model for the reliability analysis of adhesive bonded stepped lap composite joints, representative for the main laminate in a wind turbine blade subjected to static flapwise bending load, is presented. Three dimensional (3D) FEA is used for the structural analysis together with a design equation that is associated with a deterministic code-based design equation where reliability is secured by partial safety factors. The Tsai-Wu and the maximum principal stress failure criteria are used to predict failure in the composite and adhesive layers, respectively, and the results are compared with the target reliability level implicitly used in the wind turbine standard IEC 61400-1. The accuracy and efficiency of Asymptotic Sampling is investigated by comparing the results with predictions obtained using the Monte Carlo simulation technique. Finally, the partial safety factors are calibrated, and it is shown that the methodology can be further applied to general calibration of partial safety factors to be used in deterministic design.
机译：可靠性分析与复合结构的有限元分析（FEA）结合在一起，对计算的要求很高，并且需要大量模拟才能以小标准误差实现对失效概率的准确预测。本文没有充分利用渐近采样法，它是一种有希望且省时的方法，可以用来计算失效概率，并且它是一种粘合剂模型的阶梯搭接复合接头可靠性分析的概率模型，该模型代表了风轮机叶片中的主要层压板承受了静态拍打方向的弯曲载荷。三维（3D）FEA与设计方程式一起用于结构分析，该设计方程式与基于确定性代码的设计方程式相关，其中，通过部分安全系数来确保可靠性。 Tsai-Wu和最大主应力破坏准则分别用于预测复合材料层和粘合层的破坏，并将结果与​​风力发电机标准IEC 61400-1中隐含的目标可靠性水平进行比较。通过将结果与使用蒙特卡洛模拟技术获得的预测结果进行比较，研究了渐进采样的准确性和效率。最后，对部分安全系数进行了校准，结果表明该方法可以进一步应用于确定性设计中使用的部分安全系数的一般校准。

著录项

  • 来源
    《Engineering Structures》 |2013年第4期|655-663|共9页
  • 作者

    A. Kimiaeifar; E. Lund; O.T. Thomsen; J.D. Sorensen;

  • 作者单位

    Department of Mechanical and Manufacturing Engineering, Aalborg University, Fibigerstraede 76, DK-9220 Aalborg East, Denmark;

    Department of Mechanical and Manufacturing Engineering, Aalborg University, Fibigerstraede 76, DK-9220 Aalborg East, Denmark;

    Department of Mechanical and Manufacturing Engineering, Aalborg University, Fibigerstraede 76, DK-9220 Aalborg East, Denmark,University of Southampton, Engineering Sciences, Highfield, SO17 1BJ Southampton, UK;

    Department of Civil Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark;

  • 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

    stepped adhesive bonded joint; reliability assessment; probability of failure; asymptotic sampling; failure criteria;

    机译：阶梯式胶接接头可靠性评估;失败的可能性;渐进采样失败标准;

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