Determination of third order elastic constants in a complex solid applying coda wave interferometry

被引：124

作者：

Payan, C. ^{[1
]}

Garnier, V. ^{[1
]}

Moysan, J. ^{[1
]}

Johnson, P. A. ^{[2
]}

机构：

[1] Univ Aix Marseille 2, Lab Caracterisat Non Destruct, IUT Aix Provence, F-13625 Aix En Provence 1, France

[2] Los Alamos Natl Lab, Geophys Grp, Div Earth & Environm Sci, Los Alamos, NM USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 01期

关键词：

acoustic wave interferometry; concrete; elastic constants; elastic moduli measurement; NONLINEAR ELASTICITY; VELOCITY; CONCRETE; BEHAVIOR; ROCK;

D O I：

10.1063/1.3064129

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this letter we describe the development of coda wave interferometry to determine acoustoelastically derived third order nonlinear coefficients of a highly complex material, concrete. Concrete, a structurally heterogeneous and volumetrically mechanically damaged material, is an example of a class of materials that exhibit strong multiple scattering as well as significant elastic nonlinear response. We show that intense scattering can be applied to robustly determine velocity changes at progressively increasing applied stress using coda wave interferometry, and thereby extract nonlinear coefficients.

引用

页数：3