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首页> 外文期刊>Journal of aerospace engineering >Experiments and Cohesive Zone Model Parameters for T650/AFR-PE-4/FM680-1 at High Temperatures
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Experiments and Cohesive Zone Model Parameters for T650/AFR-PE-4/FM680-1 at High Temperatures

机译:T650 / AFR-PE-4 / FM680-1高温下的实验和内聚区模型参数

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摘要

This paper reports an experimental program to establish a cohesive zone model for the T650/AFR-PE-4 (laminate) and FM680-1 (adhesive) system. The cohesive zone model is based on a four parameter characterization: in each mode, a range of values for the critical energy release rate and cohesive strength are computed from a set of experimental results. Values of each parameter are determined over the temperature range of 20-350°C. Owing to experimental limitations, two methods for determining the Mode I critical energy release rate are reported from the double cantilever beam test: the area method and the inverse method. The Mode I strength is determined from a button peel stress test. The values of the Mode II parameters are determined by using a mapping procedure that accounts for multiparameter dependence in models of the end notch flexure and single lap joint tests.
机译:本文报告了一个实验程序,该程序为T650 / AFR-PE-4(层压板)和FM680-1(粘合剂)系统建立内聚区模型。内聚区模型基于四个参数表征:在每种模式下,根据一组实验结果计算临界能量释放速率和内聚强度的一系列值。在20-350°C的温度范围内确定每个参数的值。由于实验的局限性,双悬臂梁试验报告了两种确定I型临界能量释放速率的方法:面积法和反方法。模式I强度由纽扣剥离应力测试确定。模式II参数的值是通过使用映射过程确定的,该过程考虑了端槽弯曲和单搭接试验模型中的多参数依赖性。

著录项

  • 来源
    《Journal of aerospace engineering》 |2011年第3期|p.285-297|共13页
  • 作者单位

    Assistant Professor of Mechanical and Aeronautical Engineering, Dept. of Mechanical and Aeronautical Engineering, Western Michigan Univ., Kalamazoo, MI 49008;

    Professor of Aerospace Engineering, Professor of Mechanical Engineering, Dept. of Aerospace Engineering, Univ. of Michigan, Ann Arbor, MI 48109;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fracture;

    机译:断裂;

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