Non-reflecting boundary condition for Lamb wave propagation problems in honeycomb and CFRP plates using dashpot elements

Hosseini, Seyed Mohammad Hossein; Duczek, Sascha; Gabbert, Ulrich

doi:10.1016/j.compositesb.2013.04.061

Cited by 14 publications

(6 citation statements)

References 17 publications

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“…In this regard, Oh et al [185] developed non-reflecting boundary conditions and applied them to a concrete structure. Hosseini et al [99] adopted a novel approach based on dashpot element and used carbon fiber-reinforced plastic (CFRP) and honeycomb sandwich plates to minimize the effect of wave reflections at the boundaries. The advantage of the method proposed by Hosseini is that it can be readily implemented in commercial software packages.…”

Section: Accepted Manuscript N O T C O P Y E D I T E Dmentioning

confidence: 99%

Simulation Methods for Guided Wave-Based Structural Health Monitoring: A Review

Willberg

Duczek

Vivar-Perez

et al. 2015

Applied Mechanics Reviews

123

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This paper reviews the state-of-the-art in numerical wave propagation analysis. The main focus in that regard is on guided wave-based structural health monitoring (SHM) applications. A brief introduction to SHM and SHM-related problems is given, and various numerical methods are then discussed and assessed with respect to their capability of simulating guided wave propagation phenomena. A detailed evaluation of the following methods is compiled: (i) analytical methods, (ii) semi-analytical methods, (iii) the local interaction simulation approach (LISA), (iv) finite element methods (FEMs), and (v) miscellaneous methods such as mass–spring lattice models (MSLMs), boundary element methods (BEMs), and fictitious domain methods. In the framework of the FEM, both time and frequency domain approaches are covered, and the advantages of using high order shape functions are also examined.

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Section: Accepted Manuscript N O T C O P Y E D I T E Dmentioning

confidence: 99%

Simulation Methods for Guided Wave-Based Structural Health Monitoring: A Review

Willberg

Duczek

Vivar-Perez

et al. 2015

Applied Mechanics Reviews

123

View full text Add to dashboard Cite

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“…As mentioned above, the height of the CFST is greater than its cross-sectional width, so the absorption boundary is required in the height direction of the numerical models. The frequently-used absorption boundary in Abaqus is the artificial damping element or the infinite element [80,81]. In order to realize the wave energy concentration and enhance the contrast effect, the cosine wavelet signal is employed as the excitation herein.…”

Section: Mesoscale Modeling and Wave Propagation Analysismentioning

confidence: 99%

Interfacial Debonding Detection for Rectangular CFST Using the MASW Method and Its Physical Mechanism Analysis at the Meso-Level

Chen

Wang

et al. 2019

Sensors

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In this study, the transient multichannel analysis of surface waves (MASW) is proposed to detect the existence, the location and the length of interface debonding defects in rectangular concrete-filled steel tubes (CFST). Mesoscale numerical analysis is performed to validate the feasibility of MASW-based interfacial debonding detection. Research findings indicate that the coaxial characteristics in the Rayleigh wave disperse at the starting point of the debonding area and gradually restores at the end of the defect. For healthy specimens, the surface wave mode in CFST is closer to the Rayleigh wave. However, it can be treated as a Lamb wave since the steel plate is boundary-free on both sides in the debonding area. The displacement curves are further investigated with forward analysis to obtain the dispersion curves. The mesoscale numerical simulation results indicate that the propagation characteristic of the surface wave is dominated by the debonding defect. The detectability of interfacial debonding detection for rectangular CFST using the MASW approach is numerically verified in this study. The proposed MASW-based nondestructive testing technique can achieve bond-slip detection by comparing the variation trend of the coaxial characteristics in the time-history output signals and the dispersion curves obtained from the forward analysis, for avoiding misjudgment of the experimental observations.

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“…8,9,[22][23][24] The simulations were carried out on (172 mm Â 114 mm Â 21 mm) honeycomb sample that consisted of two 2.5 mm thickness CFRP skins and a hexagonal aluminium core having thickness of 16 mm. The FE model of the honeycomb sandwich was composed of 3D solid elements (SOLID64) for the two skins of CRFP plate and 2D solid shell elements (SHELL63) for the aluminium honeycomb core.…”

Section: Simulation Of Guided Waves Propagating Along a Honeycomb Sanmentioning

confidence: 99%

An Adjustment-Free NDT Technique for Defect Detection in Multilayered Composite Constructions Using Ultrasonic Guided Waves

Samaitis

2014

Int. J. Str. Stab. Dyn.

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In recent years, the novel lightweight honeycomb sandwich structures have been applied in a wide range of industries. However, daily operational conditions, fatigue, as well as various defects developed during exploitation lead to the risk of structure failure. To meet safety and economical requirements, such structures must be tested. In this paper, an ultrasonic pitchcatch technique based on ultrasonic guided waves (UGW) for detection of defects in honeycomb sandwich structures is proposed. The technique is based on simultaneous scanning of a pair of contact type transmitting and receiving transducers positioned at¯xed distance from each other. The proposed technique has been veri¯ed by the experiments and simulations on a honeycomb sandwich structure with an aluminium core and carbon¯ber skin. The results have shown that di®erent types of internal nonhomogeneities, such as changes in internal multilayered structure, skin delaminations or disbonds between the skin and the core, give the e®ects of amplitude and phase velocity deviations, which can be detected with accuracy reasonable for practical applications.

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Non-reflecting boundary condition for Lamb wave propagation problems in honeycomb and CFRP plates using dashpot elements

Cited by 14 publications

References 17 publications

Simulation Methods for Guided Wave-Based Structural Health Monitoring: A Review

Simulation Methods for Guided Wave-Based Structural Health Monitoring: A Review

Interfacial Debonding Detection for Rectangular CFST Using the MASW Method and Its Physical Mechanism Analysis at the Meso-Level

An Adjustment-Free NDT Technique for Defect Detection in Multilayered Composite Constructions Using Ultrasonic Guided Waves

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