首页> 外文期刊>Composite Structures >Design-oriented strength of mechanical joints in composite laminate structures and reliability-based design factor
【24h】

Design-oriented strength of mechanical joints in composite laminate structures and reliability-based design factor

机译:复合材料层合结构中机械接头的设计导向强度和基于可靠性的设计系数

获取原文
获取原文并翻译 | 示例
           

摘要

Mechanical joints may act as bottlenecks in the design process of composite structures. Fitting factors need to be multiplied with the applied load condition to assure reliability. For more efficient design, this paper proposes a brand-new design-oriented strength; knee point strength for the mechanical joints in composite laminates. The knee point strength is derived from the stiffness change rate for the bearing stress strain behavior in a bearing test. The strength can be correlated with the internal bearing damage; this is verified by micrography about the bearing test specimen and finite element analysis. The probabilistic design and analysis method was applied to acquire the reliability-based fitting factor. An approach combining finite element damage analysis and a stochastic technique was adopted to analyze the probabilistic properties for the design-oriented strength of the bolted joints in CFRP laminates. The probabilistic and deterministic designs were compared and discussed. Then a proper value of the fitting factor was proposed. (C) 2015 Elsevier Ltd. All rights reserved.
机译:机械接头可能是复合结构设计过程中的瓶颈。需要将拟合系数乘以所施加的负载条件,以确保可靠性。为了提高设计效率,本文提出了一种崭新的面向设计的优势。复合层压板中机械接头的拐点强度。拐点强度是从轴承测试中轴承应力应变行为的刚度变化率得出的。强度可以与内部轴承损坏相关;有关轴承测试样品的显微照片和有限元分析对此进行了验证。应用概率设计和分析方法获得基于可靠性的拟合因子。采用有限元损伤分析和随机技术相结合的方法来分析CFRP层压板中螺栓连接的设计强度的概率特性。比较并讨论了概率设计和确定性设计。然后提出了合适的拟合因子值。 (C)2015 Elsevier Ltd.保留所有权利。

著录项

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