Optical non-contact strain test method in internal pressure structural strength test of filament wound shell
摘 要
分别采用喷涂法及记号笔点画法在纤维缠绕壳体表面制作散斑,在内压强度试验过程中对壳体进行了光学非接触式应变测量,并通过传统应变片法测量的应变数据与之对比,结果表明:两种方法所测数据的相对误差介于0.29%~9.7%之间,符合纤维缠绕壳体在同一环向的变化规律,证实了光学非接触式应变测试方法应用于纤维缠绕壳体应变测试的可行性。
Abstract
Scattered spot was formed on the surface of the filament wound casing by spraying method and marker pen point method respectively. The optical non-contact strain measurement was carried out on the shell during the internal pressure strength test, and the strain data measured by the traditional strain gauge method was used. The comparison shows that the relative error of the data measured by the two methods is between 0.29% and 9.7%, which is consistent with the variation of the filament wound shell in the same circumferential direction. It confirms the feasibility of strain testing, and reveals that the optical non-contact strain test method should be applied to the filament wound shell.
中图分类号 TG115.28 DOI 10.11973/wsjc201911006
所属栏目 试验研究
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收稿日期 2019/4/18
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备注郑荣田(1970-),男,本科,高级工程师,主要从事静力强度测试工作
引用该论文: ZHENG Rongtian,LI Hui,ZHANG Bo,SU Lifang. Optical non-contact strain test method in internal pressure structural strength test of filament wound shell[J]. Nondestructive Testing, 2019, 41(11): 22~25
郑荣田,李辉,张波,苏丽芳. 纤维缠绕壳体内压结构强度试验中的光学非接触式应变测试方法[J]. 无损检测, 2019, 41(11): 22~25
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参考文献
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