Guided Wave Damage Detection in Composite Plates under Temperature Variations

Abstract

One of the main challenges of guided wave structural damage detection is to find an effective way of compensating temperature changes and to apply it to existing damage detection methods. This article describes a simple method for applying guided waves to the problem of detecting damage in the presence of temperature changes. In order to examine the effectiveness of the presented method, delaminations due to a low-velocity impact on composite plate specimens are detected. The results show that the presented approach can be a potential candidate to detect damage in aircraft structures under the temperature variations.

Keywords:

• Composite plates
• Damage detection
• Lamb waves
• Structural health monitoring (SHM)
• Temperature effect