Ultrasonic Evaluation Using Higher Order Lamb Wave Modes

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Sodagar Sina; Ranjbar Naserabadi Mohammad Javad

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Journal Paper

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Journal: Non-Destructive Testing Technology Year:2020 | Volume:2 | Issue:6 Page(s): 12-19

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Title

Ultrasonic Evaluation Using Higher Order Lamb Wave Modes

Author(s)

Sodagar Sina | Ranjbar Naserabadi Mohammad Javad | Issue Writer Certificate

Keywords

Ultrasonic

Guided waves

Higher order modes

High frequency

Abstract

Long-range guided wave inspection systems are often used in low frequency– thickness ranges below the cut-off frequencies of higher wave modes to simplify data interpretation. In this paper, the potential of high-order guided wave modes for the inspection of plate structures is considered. The characteristics of high-order lamb wave modes and their corresponding sensitivity and detectability are investigated. Using a commercially available software package, finite element simulations are carried out to model the propagation of A1 and S1 wave modes in steel plate. Using a variable angle transducer, experimental pulse– echo measurements are also conducted to evaluate the measurement errors when implementing Higher order modes A1 and S1 on a 2-mm thick steel plate at 4 MHz. mm. Experimental measurements show that when using S1 mode for short-range measurements, the relative error is less than 10%.

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APA: Copy

Sodagar, Sina, & Ranjbar Naserabadi, Mohammad Javad. (2020). Ultrasonic Evaluation Using Higher Order Lamb Wave Modes. NONDESTRUCTIVE TESTING TECHNOLOGY, 2(6 ), 12-19. SID. https://sid.ir/paper/374202/en

Vancouver: Copy

Sodagar Sina, Ranjbar Naserabadi Mohammad Javad. Ultrasonic Evaluation Using Higher Order Lamb Wave Modes. NONDESTRUCTIVE TESTING TECHNOLOGY[Internet]. 2020;2(6 ):12-19. Available from: https://sid.ir/paper/374202/en

IEEE: Copy

Sina Sodagar, and Mohammad Javad Ranjbar Naserabadi, “Ultrasonic Evaluation Using Higher Order Lamb Wave Modes,” NONDESTRUCTIVE TESTING TECHNOLOGY, vol. 2, no. 6 , pp. 12–19, 2020, [Online]. Available: https://sid.ir/paper/374202/en

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