期刊
ULTRASONICS
卷 60, 期 -, 页码 109-116出版社
ELSEVIER
DOI: 10.1016/j.ultras.2015.03.003
关键词
Ultrasonic guided waves; Anisotropic materials; Temperature; Structural health monitoring; Subtraction
资金
- Engineering and Physical Sciences Research Council (EPSRC) through the UK Engineering Doctorate Centre in Non-Destructive Evaluation
- Structural Integrity Technoloqy group, Air Division, QinetiQ plc
- Engineering and Physical Sciences Research Council [1009283] Funding Source: researchfish
Carbon Fibre Reinforced Polymer (CFRP) materials are lightweight and corrosion-resistant and therefore are increasingly used in aerospace, automotive and construction industries. In Structural Health Monitoring (SHM) applications of CFRP materials, ultrasonic guided waves potentially offer large area inspection or inspection from a remote location. This paper addresses the effect of temperature variation on guided wave propagation in highly anisotropic CFRP materials. Temperature variations cause changes in guided wave velocity that can in turn compromise the baseline subtraction procedures employed by many SHM systems for damage detection. A simple model that describes the dependence of elastic properties of the CFRP plates on temperature is presented in this paper. The model can be used to predict anisotropic velocity changes and baseline subtraction performance under varying thermal conditions. The results produced by the model for unidirectional and 0/90 CFRP plates are compared with experimental measurements. (C) 2015 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据