A New Smart Damage Sensor Using Mechanoluminescence Material
A New Smart Damage Sensor Using Mechanoluminescence Material
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DOI：
10.4028/www.scientific.net/msf.675-677.1081
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
Wen Xue Wang;Y. Imai;C. Xu;T. Matsubara;Y. Takao
中科院分区：
文献类型：
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作者：
Wen Xue Wang;Y. Imai;C. Xu;T. Matsubara;Y. Takao
提出了一种新型的机械发光材料SrAl2O4：Eu（SAOE）用于结构损伤检测的智能传感器。SAOE是一种在受到外界机械作用时能发出可见光的功能陶瓷。SAOE的发光强度非常高，使我们能够用肉眼看到可见光。用SAOE粉末和聚合物制作了智能薄膜传感器。在循环加载条件下，负载频率对发射可见光的影响进行了研究。此外，裂纹的检测和应力集中和应力强度因子的评估进行使用SAOE膜传感器。实验结果表明，SAOE薄膜传感器发出的可见光与等效应变和等效应力具有良好的相关性。
This paper proposes a new smart sensor for the detection of damage in structures using mechanoluminescence (ML) material SrAl2O4:Eu (SAOE). SAOE is a kind of functional ceramics that can emit visual light when it is subjected to external mechanical action. The luminescence of SAOE is very high so that it enables us to view the visual light with naked eye. A smart film sensor is fabricated using SAOE powder and polymer. The effect of load frequency on the emitted visual light is investigated under cyclic loading conditions. Furthermore, detection of a crack and evaluation of the stress concentration and stress intensity factors are performed using SAOE film sensor. Experimental results demonstrate that the visual light emitted by SAOE film sensor has good correlation with the equivalent strain and stress.