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激光辐照玻璃纤维/环氧树脂复合材料的力学剥蚀研究

Research to Mechanics Erosion Effect of Laser Irradiating Glass/Epoxy Composites

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摘要

根据实验现象,提出了计算力学剥蚀的模型和判据,将剥蚀过程分解为材料分层和层内断裂两个过程:对分层过程利用激光辐照玻璃纤维/环氧树脂复合材料的热力学模型计算,对层内断裂过程用板壳模型计算。利用实验结果验证了模型的合理性,计算结果表明,力学剥蚀过程极大地降低了烧蚀穿孔所需的能量,对激光辐照效应影响很大;功率密度较低时,烧蚀效率较高。

Abstract

Basing the experiment phenomenon, a model and criterion for simulating mechanics erosion process have been developed for laser irradiating glass/epoxy composite. The mechanics erosion process has been divided into two processes of delamination and layer fracture. A thermo mechanical model can be used until composite delamination appears. Then plates and shell theory can be used for simulating layer fracture. The experiment results agree well with the simulation value , and that shows the model is reasonable. The simulation results indicate that the mechanics erosion process is very important for laser ablation effect, and the ablation energy can be reduced greatly by the process; the ablation efficiency can be higher with lower laser intense.

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中图分类号:TN248.1

DOI:10.3788/cjl201542.0106001

所属栏目:材料与薄膜

收稿日期:2014-07-25

修改稿日期:2014-08-06

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作者单位    点击查看

彭国良:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
张相华:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
高银军:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
闫辉:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024

联系人作者:彭国良(pgl02@163.com)

备注:彭国良(1985-),男,硕士,助理研究员,主要从事激光辐照效应的数值模拟方面的研究。

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引用该论文

Peng Guoliang,Zhang Xianghua,Gao Yinjun,Yan Hui. Research to Mechanics Erosion Effect of Laser Irradiating Glass/Epoxy Composites[J]. Chinese Journal of Lasers, 2015, 42(1): 0106001

彭国良,张相华,高银军,闫辉. 激光辐照玻璃纤维/环氧树脂复合材料的力学剥蚀研究[J]. 中国激光, 2015, 42(1): 0106001

被引情况

【1】张文杰,蒙文,李云霞,梁路阳. 切向气流对激光辐照效应影响的研究进展. 激光与光电子学进展, 2016, 53(4): 41403--1

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