东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (1): 91-94.DOI: 10.12068/j.issn.1005-3026.2017.01.019

• 机械工程 • 上一篇    下一篇

静力拉伸载荷下纤维金属层板的变形行为

佟安时1, 谢里阳1, 刘建中2, 白恩军1   

  1. (1. 东北大学 机械工程与自动化学院, 辽宁 沈阳110819; 2. 北京航空材料研究院, 北京100095)
  • 收稿日期:2015-08-24 修回日期:2015-08-24 出版日期:2017-01-15 发布日期:2017-01-13
  • 通讯作者: 佟安时
  • 作者简介:佟安时(1985-),男,辽宁沈阳人,东北大学博士研究生; 谢里阳(1962-),男,安徽岳西人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金重点资助项目(51335003).

Deformation of Fiber-Metal Laminates Under Uniaxial Tensile Loading

TONG An-shi1, XIE Li-yang1, LIU Jian-zhong2, BAI En-jun1   

  1. 1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China; 2. Avic Beijing Institute of Aeronautical Materials, Beijing 100095,China.
  • Received:2015-08-24 Revised:2015-08-24 Online:2017-01-15 Published:2017-01-13
  • Contact: XIE Li-yang
  • About author:-
  • Supported by:
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摘要: 为研究静力拉伸载荷下纤维金属层板变形行为,在标准试验之外引入数字图像关联技术(简称DIC),观测了GLARE2-3/2、GLARE3-3/2和GLARE6-3/2层板试样的应变变化过程.对比分析了获得的应力-应变曲线、应变云图及试样不同位置处的应变随载荷时间历程变化的过程.结果显示:GLARE2-3/2层板试样的应变变化过程均匀稳定,无明显边界效应;GLARE3-3/2层板试样轴向有瞬时的性能退化,横向具有边界效应;GLARE6-3/2铺层试样具有两次瞬时性能退化,横向边界效应与GLARE3层板试样相反.

关键词: 纤维金属层板, 应力-应变曲线, 损伤机制, 非线性行为, 玻璃纤维, 环氧树脂

Abstract: In order to find the deformation behavior and boundary effect of fiber-metal laminate (FML) under uniaxial tensile loading, mechanical tests were carried out on GLARE2-3/2, GLARE3-3/2 and GLARE6-3/2 laminates. A new method of digital image correlation was introduced to record the surface strain of the GLARE laminate samples during loading. The stress-strain curves, strain cloud chart and strain-loading time curves show that the deformation of GLARE2-3/2 laminates is uniform,without obvious boundary effects; the GLARE3-3/2 laminates have instantaneous performance degradation and boundary effect, and the GLARE6-3/2 laminates have two performance degradation and the boundary effect is opposite to that of GLARE3-3/2 laminates.

Key words: fiber-metal laminates, stress-strain curve; failure mechanism; non-linear behavior; glass fiber; epoxy resin

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