Damage detection in composite laminates using nonlinear guided wave mixing

Allen, Juan Carlos Pineda; Ng, Ching‐Tai

doi:10.1016/j.compstruct.2023.116805

Cited by 11 publications

(2 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The film may need to be developed, while digital detectors provide immediate results. A trained radiographic technician or inspector examines the radiographic image to identify the location, size, and characteristics of any defects, such as cracks, voids, or inclusions [32].…”

Section: Radiographic Inspectionmentioning

confidence: 99%

Non-destructive testing methods commonly used in aviation

Ulus,

Davarcı,

Gültekin

2024

International Journal of Aeronautics and Astronautics

View full text Add to dashboard Cite

Non-Destructive Testing (NDT) methods play a pivotal role in ensuring the safety and reliability of aircraft in the aviation industry. This article provides a comprehensive overview of the NDT techniques commonly employed in aviation to assess the structural integrity and performance of aircraft components and materials without causing any damage. The article discusses the significance of NDT in aviation, highlighting the importance of early defect detection, maintenance cost reduction, and enhanced operational safety. It delves into various NDT methods, such as ultrasonic testing, eddy current testing, radiographic inspection, magnetic particle testing, and dye penetrant testing, explaining their principles and applications. In addition, in this article, the advantages and disadvantages of NDT methods and which methods are used in which part of the aircraft are mentioned. Understanding these NDT methods is crucial for aviation professionals, as they contribute to the continued airworthiness of aircraft, ensuring that passengers and crew can travel safely and confidently.

show abstract

Section: Radiographic Inspectionmentioning

confidence: 99%

Non-destructive testing methods commonly used in aviation

Ulus,

Davarcı,

Gültekin

2024

International Journal of Aeronautics and Astronautics

View full text Add to dashboard Cite

show abstract

“…There are still many problems to be studied, such as the quantitative relationship between crack characteristics and nonlinear Lamb wave signals, the method of analyzing nonlinear Lamb waves, and the method of extracting damage evaluation features. (9)(10)(11) It is difficult to accurately manufacture closed microcracks of desired sizes in the experimental thin plates. The accuracy of the closed microcrack size is also difficult to guarantee, which had given rise to great obstacles to physical experimentation.…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of Nonlinear Lamb Wave Characteristics of Closed Microcrack in Plates

Zhang¹,

Lv²,

Luo³

2023

Sensors and Materials

View full text Add to dashboard Cite

In this study, we examined the nonlinear ultrasonic effect of closed microcracks in industrial plates and derived the relationship between the nonlinear coefficient and the characteristic parameters of closed microcracks by analyzing the contact nonlinear ultrasonic theoretical model. Firstly, we established the finite element mesh model of closed microcracks in an industrial aluminum plate by simulation analysis and excited the S1 mode Lamb wave in the plate by the wave structure loading method based on the dispersion curve of the material's nonlinear matching. Secondly, we set up sensor nodes to collect the signal after the interaction between the S1 mode Lamb wave and the closed microcracks. Finally, we preprocessed the signal to analyze the rule of the change in the level of interaction between the closed microcracks and the S1 mode Lamb wave depending on the characteristics. Experimental results show that the second-harmonic amplitude and nonlinear coefficient decrease with increasing crack width for the closed microcracks, but increase with increasing crack length. These results confirm the effectiveness of the contact nonlinear ultrasonic theoretical model.

show abstract