MEASUREMENT OF THE DISPERSION INFLUENCE TO THE PHASE VELOCITY OF THE LAMB WAVE A0 AND S0 MODES

被引：0

作者：

Draudviliene, Lina ^{[1
]}

Ait-Aider, Hacene ^{[2
]}

机构：

[1] Technol Univ Kaunas, Inst Ultrasound, Kaunas, Lithuania

[2] Mouloud Mammeri Univ Tizi Ouzou, Fac Engn Construct, Tizi Ouzou, Algeria

来源：

PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN (M2D2017) | 2017年

关键词：

Lamb waves; frequency; dispersion; phase velocity;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work exposes the possibilities to apply the hybrid spectrum decomposition and zero-crossing technique for the phase velocity measurement of the Lamb wave fundamental modes. This technique has been investigated using modelled signals of the Lamb wave asymmetric A(0) and symmetric S-0 modes in two different objects: in homogenous aluminium plate of 2 mm thikness and nonhomogenous CFRP (Carbon Fibber Reinforced Plastic) plate of 0.2 mm thickness. The technique enables to evaluate the phase velocity dispersion of the Lamb waves and to reconstruct segments of the dispersion curves.

引用

页码：1035 / 1036

页数：2