A new approach to predicting multiple damage states in composite laminates with embedded FBG sensors
A new approach to predicting multiple damage states in composite laminates with embedded FBG sensors
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DOI：
10.1016/j.compscitech.2004.09.022
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发表时间：
2005-03
影响因子：
9.1
通讯作者：
S. Yashiro;N. Takeda;T. Okabe;H. Sekine
中科院分区：
文献类型：
--
作者：
S. Yashiro;N. Takeda;T. Okabe;H. Sekine
提出了一种利用埋入式光纤光栅（FBG）传感器预测复合材料层合板多损伤状态的新方法。FBG传感器对沿其纵向沿着的非均匀应变分布敏感，并且该效应出现在来自测量部分的反射光的功率谱中。在本文中，我们提出了一个数值模型来预测层合板的损伤过程和FBG传感器的反射光谱的变化。提出的方法，然后应用到解释的准静态拉伸试验的结果为切口的CFRP正交铺设层压板与嵌入式FBG传感器。结果表明，该方法对复合材料层合板多损伤状态的预测是有效的。
We propose a new approach to predicting multiple damage states in composite laminates using embedded fiber Bragg grating (FBG) sensors. FBG sensors are sensitive to a non-uniform strain distribution along their longitudinal direction, and the effects appear in the power spectrum of the reflected light from the gage section. In this paper, we propose a numerical model to predict both the damage process of the laminate and the change of the reflection spectrum from the FBG sensor. The proposed approach is then applied to explain the results of a quasi-static tensile test for a notched CFRP cross-ply laminate with an embedded FBG sensor. The results demonstrate that the proposed approach is useful for predicting multiple damage states in composite laminates.