CHARACTERIZATION OF FATIGUE DAMAGE IN A36 STEEL SPECIMENS USING NONLINEAR RAYLEIGH SURFACE WAVES

被引：1

作者：

Walker, Simon V. ^{[1
]}

Kim, Jin-Yeon ^{[2
]}

Jacobs, Laurence J. ^{[1
,2
]}

Qu, Jianmin ^{[3
]}

机构：

[1] Georgia Inst Technol, Sch Civil & Environm Engn, 790 Atlantic Dr, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

[3] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 31A AND 31B | 2012年 / 1430卷

关键词：

Nonlinear Acoustics; Fatigue; Nonlinear Rayleigh Wave; HARMONIC-GENERATION;

D O I：

10.1063/1.4716382

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This research uses nonlinear Rayleigh surface waves to characterize damage in A36 steel specimens caused by monotonic tension and low cycle fatigue. Fatigue damage produces the increased acoustic nonlinearity that leads to the generation of measurable higher harmonics in the initially monochromatic Rayleigh wave. Tone burst Rayleigh wave signals are generated and detected using a pair of wedge transducers. The experimental results show an increase of acoustic nonlinearity in the early stage of fatigue life and a close relationship between the acoustic nonlinearity and cumulative plastic deformation.

引用

页码：1415 / 1421

页数：7

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