压缩应变对三维周期双材料结构影响的超声研究

IF 1 3区 物理与天体物理 Q4 ACOUSTICS Acta Acustica Pub Date : 2022-01-01 DOI:10.1051/aacus/2022023
L. Chehami, Jingfei Liu, P. Pomarède, P. Lohmuller, Boris Pittrowski, F. Meraghni, N. Declercq
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引用次数: 0

摘要

规则微结构材料由于具有较高的刚度质量比等特殊的弹性性能,在工业上得到了广泛的应用。为了保证材料质量,对无损评价的需求无处不在。超声作为一种有效的无损检测方法,在提供高效的材料表征方面具有很大的潜力。然而,与更方便的超声应用相反,由于不同现象的共存,包括周期性引起的衍射效应,将超声应用于三维双材料结构时遇到了挑战。为了解决这一问题,提出了两种线性超声方法,即布拉格衍射和梳状滤波效应。结果表明,梳状过滤效果分别有效表征了双材料的垂直结构质量。布拉格衍射也能揭示水平面上的结构变化。
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Ultrasonic investigation of the effect of compressive strains on 3D periodic bi-material structures
Due to the specific elastic properties such as high stiffness to mass ratio, regular microstructure materials are widely used in the industry. The need for nondestructive evaluation is ubiquitous to ensure material quality. As an effective nondestructive testing method, ultrasound has great potential in providing an efficient materials characterization. However, contrary to more convenient ultrasound applications, challenges arise when applying ultrasound to 3D bi-material structures due to the coexistence of different phenomena, including diffraction effects caused by the periodicity. Two linear ultrasound methods, namely the Bragg diffraction and the comb filtering effect, are proposed to address this hurdle. The results show that the comb filtering effect effectively characterizes, respectively, the vertical structural quality of the bi-material. Bragg diffraction can also expose structural variations in the horizontal plane.
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来源期刊
Acta Acustica
Acta Acustica ACOUSTICS-
CiteScore
2.80
自引率
21.40%
发文量
0
审稿时长
12 weeks
期刊介绍: Acta Acustica, the Journal of the European Acoustics Association (EAA). After the publication of its Journal Acta Acustica from 1993 to 1995, the EAA published Acta Acustica united with Acustica from 1996 to 2019. From 2020, the EAA decided to publish a journal in full Open Access. See Article Processing charges. Acta Acustica reports on original scientific research in acoustics and on engineering applications. The journal considers review papers, scientific papers, technical and applied papers, short communications, letters to the editor. From time to time, special issues and review articles are also published. For book reviews or doctoral thesis abstracts, please contact the Editor in Chief.
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