Modeling and frequency analysis of beam with breathing crack
Sign Up to like & getrecommendations! Published in 2018 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-018-1400-z
Abstract: In this paper, a general formulation for beam with a desired shape of breathing crack is presented. The difference of the presented modeling with previous works is that the crack’s parameters such as depth, location,… read more here.
Keywords: frequency analysis; breathing crack; beam; crack ... See more keywords
Nonlinear aspects of “breathing” crack-disturbed plate waves: 3-D analytical modeling with experimental validation
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2019.05.036
Abstract: Abstract Previously, a two-dimensional (2-D) analytical model for interpreting the modulation mechanism of a “breathing” crack on guided ultrasonic waves (GUWs) is developed [1]. Based on the theory of wave propagation in three-dimensional (3-D) waveguides… read more here.
Keywords: breathing crack; nonlinear aspects; model; experimental validation ... See more keywords
Analysis of nonlinear frequency mixing in Timoshenko beams with a breathing crack using wavelet spectral finite element method
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115532
Abstract: Abstract The nonlinear interaction of a dual-frequency Lamb wave with a breathing edge-crack leads to the generation of frequency sidebands in the response spectrum; a phenomenon referred to as the nonlinear frequency mixing. These sidebands… read more here.
Keywords: frequency; spectral finite; nonlinear frequency; breathing crack ... See more keywords
Reference-Free Breathing Crack Identification of Beam-Like Structures Using an Enhanced Spatial Fourier Power Spectrum with Exponential Weighting Functions
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Structural Stability and Dynamics"
DOI: 10.1142/s0219455419500172
Abstract: Detection of incipient damage of structures at the earliest possible stage is desirable for successful implementation of any health monitoring system. In this paper, we focus on breathing crack problem and present a new reference-free… read more here.
Keywords: breathing crack; crack; fourier power; power spectrum ... See more keywords
Localization of Breathing Crack in Beam-Like Structures Using Superharmonic Components Based on Singular Value Decomposition Approach
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Structural Stability and Dynamics"
DOI: 10.1142/s0219455420500145
Abstract: The identification of a breathing crack is a highly challenging inverse problem in structural health monitoring. A novel output-only diagnostic technique for breathing cracks is proposed in this pa... read more here.
Keywords: beam like; breathing crack; like structures; crack beam ... See more keywords
Breathing crack damage diagnostic strategy using improved MFCC features
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Intelligent Material Systems and Structures"
DOI: 10.1177/1045389x211001446
Abstract: In this paper, a new two-stage damage diagnostic technique for breathing crack identification in using improved Mel frequency Cepstral Analysis is proposed for engineering structures. The improvements such as the centre frequencies of Mel-filter bank… read more here.
Keywords: breathing crack; damage; frequency cepstral; crack ... See more keywords
A method for detecting damage-induced nonlinearity in structures using weighting function augmented curvature approach
Sign Up to like & getrecommendations! Published in 2019 at "Structural Health Monitoring"
DOI: 10.1177/1475921718788801
Abstract: Structural damages can result in nonlinear dynamical signatures that can significantly enhance their detection. In this article, we present a new method for identifying damage-induced nonlinearity using vibration response measurements. Among the various types of… read more here.
Keywords: induced nonlinearity; breathing crack; damage; damage induced ... See more keywords