Strain test and analysis of composite laminated plate under laser irradiation

被引：1
|
作者：
Zhu K. [1 ]
Long L. [1 ]
Chen M. [1 ]
Liu S. [2 ]
机构：
[1] College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology
[2] Institute of Laser Engineering, Beijing University of Technology
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2011年 / 23卷 / 12期
关键词：
Composite material; Laser beam irradiation; Relative error; Strain measurement; Thermal strain;
D O I：
10.3788/HPLPB20112312.3265
中图分类号：
学科分类号：
摘要：
The change in strain of T300/AG80 carbon fiber composite laminated plates were tested under laser irradiation. The strain in three directions of 0°, 45° and 90° of the samples under laser beams with various radii were recorded by the dynamic strain testing apparatus. With the effects of temperature eliminated, the presented data show that, the strain decreases with the increase of the distance to the center of laser spot. After the laminates are irradiated for 5 seconds, the maximum strain is found in the direction of 90° and is at least 1.5 times larger than the minimum strain in the direction of 0°. The thermal stress at every point decreases as the distance to the spot center increases. The experiment process was simulated with finite element analysis software, which shows that the maximum relative error caused by temperature is 16.9%.
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页码：3265 / 3270
页数：5
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