Nonlinear elastic wave spectroscopy with MLS perturbation signal

被引：0

作者：

Carbol, L. ^{[1
]}

Martinek, J. ^{[1
]}

Kusak, I. ^{[1
]}

Kucharczykova, B. ^{[2
]}

机构：

[1] Brno Univ Technol, Fac Civil Engn, Dept Phys, Veveri 95, Brno 60200, Czech Republic

[2] Brno Univ Technol, Fac Civil Engn, Inst Bldg Testing, Veveri 95, Brno 60200, Czech Republic

来源：

ECOLOGY AND NEW BUILDING MATERIALS AND PRODUCTS 2016 | 2016年 / 151卷

关键词：

Nonlinear Elastic Wave Spectroscopy (NEWS); Maximum Length Sequence (MLS); building materials; Eigenfrequency; non-destructive testing; ultrasound; MAXIMUM LENGTH SEQUENCES; SURFACES; DAMAGE;

D O I：

10.1016/j.proeng.2016.07.365

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The article describes a test procedure based on the fundamental principle of Nonlinear Elastic Wave Spectroscopy. Without integration of all test stages into one automated measurement station and without Maximum Length Sequence (MLS) perturbation signal, this method would be otherwise lengthy and unfit for practical application. Material nonlinearities are elegantly quantified in a single coefficient. Furthermore, in the same measurement Eigenfrequency of the sample can be estimated with greater accuracy than in conventional methods. The method is applied on thermally loaded mortar samples. (C) 2016 The Authors. Published by Elsevier Ltd.

引用

页码：306 / 312

页数：7

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