Detection of internal micro defects by nonlinear resonant ultrasonic method using water immersion

被引：36

作者：

Ohara, Y ^{[1
]}

Kawashima, K ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Mech Engn, Nagoya, Aichi 4668555, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 5B期

关键词：

nonlinear acoustics; higher harmonics; resonance; water immersion; contact acoustic nonlinearity; micro defect; composite;

D O I：

10.1143/JJAP.43.3119

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A nonlinear resonant ultrasonic method using water immersion has been developed to detect micro defects in solids. This method allows us to reduce the strong nonlinearity of water and amplify the weak second harmonics generated at internal micro defects. In this method, both the fundamental and second harmonic frequencies are selected to match the resonant frequencies based on the resonant spectra of a sample. The detection of the micro defects in SiCf/Ti composite has been demonstrated.

引用

页码：3119 / 3120

页数：2

共 6 条

[1] FINITE-AMPLITUDE ULTRASONIC WAVES IN ALUMINUM [J].