The crack detection and evaluation by elastic wave propagation in open hole structures for aerospace application

Barski, Marek; Stawiarski, Adam

doi:10.1016/j.ast.2018.07.045

Cited by 27 publications

(9 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, in the base of composite inspection, anisotropy plays a significant role, leading to directional dependence of wave velocity for each mode. Those characteristic features of guided waves are usually exploited in the detection of various defects such as cracks (Masserey and Fromme 2015;Chen et al 2019;Mardanshahi et al 2020;Barski andStawiarski 2018), delaminations (Zhao et al 2019;Munian et al 2020;Raišutis et al 2010) and bonding integrity (Yu et al 2017;Ochôa et al 2019;Vanniamparambil et al 2015;Fan et al 2013).…”

Section: Dispersion Relationmentioning

confidence: 99%

Ultrasonic Methods

Samaitis

Jasiūnienė

Paćko

et al. 2021

Structural Health Monitoring Damage Detection Systems for Aerospace

View full text Add to dashboard Cite

Ultrasonic inspection is a well recognized technique for non-destructive testing of aircraft components. It provides both local highly sensitive inspection in the vicinity of the sensor and long-range structural assessment by means of guided waves. In general, the properties of ultrasonic waves like velocity, attenuation and propagation characteristics such as reflection, transmission and scattering depend on composition and structural integrity of the material. Hence, ultrasonic inspection is commonly used as a primary tool for active inspection of aircraft components such as engine covers, wing skins and fuselages with the aim to detect, localise and describe delaminations, voids, fibre breakage and ply waviness. This chapter mainly focuses on long range guided wave structural health monitoring, as aircraft components require rapid evaluation of large components preferably in real time without the necessity for grouding of an aircraft. In few upcoming chapters advantages and shortcommings of bulk wave and guided wave ultrasonic inspection is presented, fundamentals of guided wave propagation and damage detection are reviewed, the reliability of guided wave SHM is discussed and some recent examples of guided wave applications to SHM of aerospace components are given.

show abstract

Section: Dispersion Relationmentioning

confidence: 99%

Ultrasonic Methods

Samaitis

Jasiūnienė

Paćko

et al. 2021

Structural Health Monitoring Damage Detection Systems for Aerospace

View full text Add to dashboard Cite

show abstract

“…Barski and Stawiarski 15 developed an SHM system that was able to detect and evaluate crack length by strategically placing rectangular piezoelectric transducers near a fastener hole using A0 Lamb wave mode, with excitation frequency of 125 kHz on a 2 mm thick aluminium alloy plate. They utilized a total of 10 piezoelectric transducers.…”

Section: Introductionmentioning

confidence: 99%

Structural health monitoring of fastener hole using ring-design direct-write piezoelectric ultrasonic transducer

Wong

Liu

Goh

et al. 2022

Structural Health Monitoring

View full text Add to dashboard Cite

Fatigue cracks initiated from fastener holes are common in aircraft structures. Implementation of effective structural health monitoring (SHM) system to detect or monitor fatigue cracks near fastener holes is desired for realizing condition-based maintenance with improved aircraft safety at reduced cost. In this work, direct-write piezoelectric ultrasonic transducers were used for monitoring crack near fastener hole. Made of poly (vinylidenefluoride-co-trifluoroethylene) [P(VDF-TrFE)] film and annular array electrodes, the direct-write piezoelectric ultrasonic transducers were both directly coated and patterned around the fastener holes. A novel ring-design using annular array electrodes with small footprint was proposed to detect fatigue crack initiated in the vicinity of a fastener hole using pulse-echo and pitch-catch methods. The ring-design direct-write piezoelectric ultrasonic transducers were designed to operate with Lamb wave modes at 1.5 MHz. A numerical simulation study was conducted to investigate the interaction of Lamb wave modes with the fatigue crack. Experimental ultrasonic testing was performed with signal gates determined using wavelet analysis. Fatigue crack detection was demonstrated using an energy ratio method by comparing energy parameter of gated ultrasonic signal with baseline signal. Using the pulse-echo method, the direction of the fatigue crack was able to be determined. The pitch-catch method was found to have higher sensitivity in fatigue crack detection but could not determine the direction of the fatigue crack. These transducers made of thin films promise high conformability even on curved surface and around irregular objects with limited space, compared to conventional discrete ultrasonic transducers. The analysis and results showed that the ring-design direct-write piezoelectric ultrasonic transducers have great potential for fastener hole SHM.

show abstract

“…Adam Stawiarski et al studied the fatigue damage initiation of isotropic circular hole plate by using elastic wave propagation phenomenon [20,21]. Marek Barski et al designed an SHM system for crack length detection and evaluation, and carried out simulation and experimental verification [22]. Giurgiutiu et al proposed the damage index (DI) based on root mean square value and Cohen type excitation cross time-frequency analysis, in order to quantitatively evaluate the corrosion damage of internal and external surfaces and the structural thickness loss [23].…”

Section: Introductionmentioning

confidence: 99%

Hole-Edge Corrosion Expansion Monitoring Based on Lamb Wave

Wang

Dai

et al. 2020

Metals

View full text Add to dashboard Cite

Corrosion is a critical issue for engineered metallic components in mechanical and aerospace industries. Due to the complexity of aerospace aluminum alloy structure, corrosion is particularly tend to occur and expand in stress concentration areas, such as the edge of a hole, which causes the overall structure to be more likely to fail. In this paper, a Lamb wave-based active sensing method with improved sensors network was used to detect the hole-edge corrosion expansion. A0 wave packet of Lamb wave is extracted from signals, and two damage factors are used as characteristics of the signals. Probabilistic imaging algorithm is used to imaging and quantify the hole-edge corrosion area. Five corrosion extension tests show that the proposed method can effectively locate and quantify the hole-edge corrosion damage expansion of a single-hole structure; furthermore, the normalized amplitude damage index and phase change damage index can be used to predict hole-edge corrosion expansion effectively.

show abstract

The crack detection and evaluation by elastic wave propagation in open hole structures for aerospace application

Cited by 27 publications

References 19 publications

Ultrasonic Methods

Ultrasonic Methods

Structural health monitoring of fastener hole using ring-design direct-write piezoelectric ultrasonic transducer

Hole-Edge Corrosion Expansion Monitoring Based on Lamb Wave

Contact Info

Product

Resources

About