利用频域和时域分析表征复合材料中的裂纹损伤

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
Rongxin Sun, Wei Li, Cong Liu, Peng Jiang, Chang Yang, Feng Yang
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引用次数: 0

摘要

摘要材料损伤的表征方法是一个关键的研究领域,因为全面的检测技术可以显著提高生产过程的安全性。本文利用实验和数值方法探讨了频域分析结果得出的非线性系数与复合材料裂纹损伤之间的关系。此外,本文还分析了三种激励信号在不同损伤情况下沿不对称路径的时域响应,揭示了受损材料的独特特征。此外,它还研究了同一路径方向上不同目标损伤与无损伤情况之间的交叉相关系数。数值结果表明了损坏程度与交叉相关系数之间的相关性。研究还强调,不同的激励信号对不同的损坏类型表现出不同的敏感性。最后,还提出了一种损伤指数,用于量化传播路径与损伤之间的相互作用,从而更准确地描述材料损伤。这项研究是对现有材料损伤表征方法的宝贵补充。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Characterization of Crack Damages in Composite Materials by Using Frequency- and Time-Domain Analysis

Characterization of Crack Damages in Composite Materials by Using Frequency- and Time-Domain Analysis

Characterization of Crack Damages in Composite Materials by Using Frequency- and Time-Domain Analysis

Characterization methods for material damage are a critical area of research, as comprehensive detection techniques can significantly enhance safety in production processes. This paper utilizes experimental and numerical methods to explore the relationship between nonlinear coefficients derived from frequency-domain analysis results and crack damages in composite materials. Additionally, it analyzes the time-domain responses of three excitation signals along asymmetric paths under various damage scenarios, revealing distinctive characteristics of damaged materials. Furthermore, it investigates cross-correlation coefficients between different target damages and the damage-free case in the same path direction. Numerical results demonstrate a correlation between the extent of damage and the cross-correlation coefficient. The study also highlights that different excitation signals exhibit varying sensitivities to different damage types. Lastly, a damage index is proposed to quantify the interaction between the propagation path and damage, enabling a more accurate characterization of material damage. This study serves as a valuable complement to existing material damage characterization methods.

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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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