year 13, Issue 1 (Journal of Acoustical Society of Iran 2025)
مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025, 13(1): 8-25 |
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Naderifar J, Sarkhosh R. Structural Health Monitoring of Carbon Fiber Composites Using Ultrasonic Techniques: An Experimental Study on the Detection and Evaluation of Artificial Defects. مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025; 13 (1) : 2
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URL: http://joasi.ir/article-1-305-en.html
Abstract: (23 Views)
The structural integrity of carbon fiber‑reinforced composites is crucial for advanced industries such as aerospace and automotive. This study aims to evaluate the effectiveness of ultrasonic testing in detecting internal defects in carbon composites and to address the limitations of conventional non‑destructive testing (NDT) methods. For this purpose, a 30‑mm‑thick composite specimen, consisting of a 2D woven fabric (200 g/m²) and epoxy resin 828, was fabricated with controlled defects, including porosities of 0.7 mm in diameter and delaminations at various depths. The Sonic 1000 ultrasonic testing device, equipped with piezoelectric probes, was employed to assess its detection capabilities. Experimental results demonstrated that this technique can accurately detect delaminations up to a depth of 25 mm and porosities as small as 0.7 mm, highlighting its high sensitivity. Compared to alternative NDT methods, ultrasonic testing exhibits superior defect detection capabilities without relying on the electrical conductivity of the material, making it particularly suitable for carbon composites. The results indicate that improving calibration accuracy enhances defect detection precision by up to 25 %, contributing to the development of preventive maintenance strategies and increased structural reliability in safety‑critical applications.
Article number: 2
Keywords: Carbon composite, Ultrasonic calibration, Defect detection, Carbon test block, High-precision calibration, Structural health monitoring.
Type of Study: Research |
Subject:
Structural Acoustics
Received: 2024/09/29 | Accepted: 2025/05/16 | Published: 2025/12/21
Received: 2024/09/29 | Accepted: 2025/05/16 | Published: 2025/12/21
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