| 静力拉伸载荷下纤维金属层板的变形行为 |
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| 引用本文： | 佟安时,谢里阳,刘建中,白恩军. 静力拉伸载荷下纤维金属层板的变形行为[J]. 东北大学学报(自然科学版), 2017, 38(1): 91-94. DOI: 10.12068/j.issn.1005-3026.2017.01.019 |
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| 作者姓名： | 佟安时 谢里阳 刘建中 白恩军 |
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| 作者单位： | (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) |
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| 基金项目： | 国家自然科学基金重点资助项目(51335003). |
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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.
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| 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 |
Deformation of Fiber-Metal Laminates Under Uniaxial Tensile Loading |
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| TONG An-shi,XIE Li-yang,LIU Jian-zhong,BAI En-jun. Deformation of Fiber-Metal Laminates Under Uniaxial Tensile Loading[J]. Journal of Northeastern University(Natural Science), 2017, 38(1): 91-94. DOI: 10.12068/j.issn.1005-3026.2017.01.019 |
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| Authors: | TONG An-shi XIE Li-yang LIU Jian-zhong BAI En-jun |
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| Affiliation: | 1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. Avic Beijing Institute of Aeronautical Materials， Beijing 100095，China. |
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| 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. |
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| Keywords: | fiber-metal laminates stress-strain curve； failure mechanism； non-linear behavior； glass fiber； epoxy resin |
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