Sizing Small Crack-like Flaws through Non-ideal Part Surface Using Ultrasonic Measurement Model

IF 1 4区材料科学 Q3 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Research in Nondestructive Evaluation Pub Date : 2020-05-03 DOI:10.1080/09349847.2019.1672842

Xiongbing Li, Nan Sun, Yongfeng Song, Shuzeng Zhang

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引用次数: 0

Abstract

ABSTRACT To accurately size small crack-like flaws in components with non-ideal surface conditions, such as curvature, roughness, and coating, we developed a flaw sizing method based on an ultrasonic measurement model. First, the effects of surface curvature on the sound beam profile, as well as the effects of surface coating and roughness on the wave energy are investigated theoretically and experimentally. Then, correction methods for curvature, roughness, and coating are introduced into the ultrasonic measurement model, and the flaw response in components with different surface conditions is predicted. Lastly, by accounting for the effects of surface conditions, a set of model-based flaw sizing curves is generated for predicting the equivalent size of crack-like flaws. These model-based curves can guide the setting of system parameters and improve the flaw sizing accuracy. Experiments are then conducted to verify the effectiveness of the proposed method. This work demonstrates the utility of the ultrasonic method for measuring the equivalent flaw size in practical applications.

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利用超声测量模型对非理想零件表面小裂纹状缺陷进行定径

摘要:为了在曲率、粗糙度和涂层等非理想表面条件下精确测量小裂纹状缺陷的尺寸，研究了一种基于超声测量模型的缺陷尺寸测量方法。首先，从理论上和实验上研究了表面曲率对声束廓形的影响，以及表面涂层和粗糙度对波能的影响。然后，在超声测量模型中引入曲率、粗糙度和涂层的校正方法，预测了不同表面条件下构件的缺陷响应。最后，考虑表面条件的影响，生成了一组基于模型的缺陷尺寸曲线，用于预测类裂纹缺陷的等效尺寸。这些基于模型的曲线可以指导系统参数的设置，提高缺陷尺寸的精度。实验验证了所提方法的有效性。这项工作证明了超声波法在实际应用中测量等效缺陷尺寸的实用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Research in Nondestructive Evaluation 工程技术-材料科学：表征与测试

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Research in Nondestructive Evaluation® is the archival research journal of the American Society for Nondestructive Testing, Inc. RNDE® contains the results of original research in all areas of nondestructive evaluation (NDE). The journal covers experimental and theoretical investigations dealing with the scientific and engineering bases of NDE, its measurement and methodology, and a wide range of applications to materials and structures that relate to the entire life cycle, from manufacture to use and retirement. Illustrative topics include advances in the underlying science of acoustic, thermal, electrical, magnetic, optical and ionizing radiation techniques and their applications to NDE problems. These problems include the nondestructive characterization of a wide variety of material properties and their degradation in service, nonintrusive sensors for monitoring manufacturing and materials processes, new techniques and combinations of techniques for detecting and characterizing hidden discontinuities and distributed damage in materials, standardization concepts and quantitative approaches for advanced NDE techniques, and long-term continuous monitoring of structures and assemblies. Of particular interest is research which elucidates how to evaluate the effects of imperfect material condition, as quantified by nondestructive measurement, on the functional performance.