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首页> 外文期刊>Journal of materials in civil engineering >Laboratory Characterization of Fatigue Performance of AM2 Aluminum Airfield Matting
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Laboratory Characterization of Fatigue Performance of AM2 Aluminum Airfield Matting

机译：AM2铝质飞机场垫层疲劳性能的实验室表征

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摘要

AM2, an airfield matting system made from extruded 6061-T6 aluminum alloy, is used to construct temporary aircraft operating surfaces. This matting system can support heavy aircraft loads even when placed directly over graded in situ soils. This paper presents the development of a test protocol and corresponding relationships that can be used to predict fatigue failure of AM2's mechanical joints over any subgrade California bearing ratio (CBR) when subjected to high tire pressure single-wheel aircraft loading. First, full-scale simulated aircraft traffic experiments were conducted over sections of AM2 installed on subgrades with CBRs of 6, 10, 15, 25, and 100% to monitor subgrade deformation and fatigue failure. An increasing amplitude displacement function developed from a subgrade deformation model was then used to create a new laboratory procedure to simulate fatigue experienced by the matting system's complex mechanical connectors under moving aircraft loads. Laboratory test results had strong correlations with field data and, therefore, have promise for predicting fatigue performance without the expense of full-scale experiments.
机译：AM2是一种由6061-T6铝合金挤压成型的飞机场消光系统，用于构造飞机的临时操作面。即使直接放置在经过分级的现场土壤上，该消光系统也可以支撑沉重的飞机负载。本文介绍了一种测试协议和相应关系的发展，该关系可用于预测承受高轮胎压力单轮飞机载荷时，在任何路基加利福尼亚承载比（CBR）下AM2的机械接头的疲劳失效。首先，对安装在路基的CBR为6、10、15、25和100％的AM2上的AM2区段进行了全面的模拟飞机交通实验，以监测路基变形和疲劳破坏。然后，使用由路基变形模型开发的增加的振幅位移函数来创建新的实验室程序，以模拟消光系统的复杂机械连接器在飞机运动中承受的疲劳。实验室测试结果与现场数据具有很强的相关性，因此有望在不进行全面实验的情况下预测疲劳性能。

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  • 来源
    《Journal of materials in civil engineering》 |2016年第11期|04016134.1-04016134.9|共9页
  • 作者

    Timothy W. Rushing; Isaac L. Howard; J. Brian Jordon; Paul G. Allison;

  • 作者单位

    Airfields and Pavements Branch, U.S. Army ERDC/3909 Halls Ferry Rd., Vicksburg, MS 39180-6199 Dept. of Civil and Environmental Engineering, Mississippi State Univ., Mississippi State, MS 39762-9546;

    Materials and Construction Industries,Dept. of Civil and Environmental Engineering, Mississippi State Univ., 235F Walker Engineering Bldg., P.O. Box 9546, Mississippi State, MS 39762-9546;

    Dept. of Mechanical Engineering, Univ. of Alabama, 1023 NERC, Tuscaloosa, AL 35487;

    Dept. of Mechanical Engineering, Univ. of Alabama, 1020 NERC, Tuscaloosa, AL 35487;

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

    Airfield mat; Full-scale tests; Fatigue; Aluminum mat; Structural mat;

    机译：机场垫;全面测试;疲劳;铝垫结构垫;

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