A 2D spring model for the simulation of ultrasonic wave propagation in nonlinear hysteretic media

被引：21

作者：

Delsanto, P. P. ^{[1
]}

Gliozzi, A. S. ^{[1
]}

Hirsekorn, M. ^{[1
]}

Nobili, M. ^{[1
]}

机构：

[1] INFM, Dip Fis, Politecn Torino, I-10129 Turin, Italy

来源：

ULTRASONICS | 2006年 / 44卷 / 03期

关键词：

nonclassical nonlinear; 2D spring model; nondestructive evaluation; ultrasound; hystretic media;

D O I：

10.1016/j.ultras.2006.01.002

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A two-dimensional (2D) approach to the simulation of ultrasonic wave propagation in nonclassical nonlinear (NCNL) media is presented. The approach represents the extension to 2D of a previously proposed one dimensional (1D) Spring Model, with the inclusion of a PM space treatment of the intersticial regions between grains. The extension to 2D is of great practical relevance for its potential applications in the field of quantitative nondestructive evaluation and material characterization, but it is also useful, from a theoretical point of view, to gain a better insight of the interaction mechanisms involved. The model is tested by means of virtual 2D experiments. The expected NCNL behaviors are qualitatively well reproduced. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：279 / 286

页数：8

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