利用驻波法检测复合材料中的隐性缺陷

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
K. V. Fedin, O. K. Marilov
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引用次数: 0

摘要

摘要 使用驻波法进行测量的结果表明,在复合材料制成的假脚细节中发现了隐藏的缺陷。根据第一弯曲波模式对应的第一个峰值,比较完整样品和有缺陷样品的幅频频谱,发现缺陷样品的共振频率值相对于完整样品频谱的频率值较低。这一观察结果表明,缺陷产品的材料可能具有较低的强度特性。此外,在研究某些样品时,还发现出现了额外的峰值,这表明出现了新的反射边界,与测试样品中出现的缺陷相对应。研究样品的振幅分布图已经绘制完成。与使用 OLYMPUS 公司生产的 OmniScan X3 设备检测样品的结果进行了初步比较。结果表明,反射边界的数量增加了,凸起的含量也增加了,这可能是在产品胶合过程中产生的。该分析证实了成功使用驻波法检测复合材料中隐藏缺陷的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Detection of Hidden Defects in Composite Material Using the Standing Waves Method

Detection of Hidden Defects in Composite Material Using the Standing Waves Method

Detection of Hidden Defects in Composite Material Using the Standing Waves Method

As a result of measurements carried out using the standing waves method, hidden defects were detected inside the prosthetic feet details made of composite material. When comparing the obtained amplitude-frequency spectra of intact samples and samples with defects based on the first peaks corresponding to the first bending wave modes, it was revealed that the values of the resonant frequencies of defective samples were lower relative to the frequency values of the spectra of the intact ones. That observation indicated that the material of defective products might have reduced strength characteristics. Also, when studying some samples, the presence of additional peaks was noted, which indicated the appearance of new reflection boundaries corresponding to the appearance of defects in the test samples. The maps of amplitude distributions in the studied samples were obtained. A preliminary comparison was made with the results of examining samples using the OmniScan X3 device manufactured by OLYMPUS company. The results obtained indicated the presence of an increased number of reflection boundaries, as well as an increased bulges content, which probably arise during the process of products gluing. The analysis confirms the possibility of successfully using the standing waves method as a method for detecting hidden defects in composite material.

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来源期刊
Russian Journal of Nondestructive Testing
Russian Journal of Nondestructive Testing 工程技术-材料科学:表征与测试
CiteScore
1.60
自引率
44.40%
发文量
59
审稿时长
6-12 weeks
期刊介绍: Russian Journal of Nondestructive Testing, a translation of Defectoskopiya, is a publication of the Russian Academy of Sciences. This publication offers current Russian research on the theory and technology of nondestructive testing of materials and components. It describes laboratory and industrial investigations of devices and instrumentation and provides reviews of new equipment developed for series manufacture. Articles cover all physical methods of nondestructive testing, including magnetic and electrical; ultrasonic; X-ray and Y-ray; capillary; liquid (color luminescence), and radio (for materials of low conductivity).
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