A macro‐element strategy based upon spectral finite elements and mortar elements for transient wave propagation modeling. Application to ultrasonic testing of laminate composite materials
Sign Up to like & getrecommendations! Published in 2019 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6080
Abstract: Proposing efficient numerical modeling tools for high‐frequency wave propagation in realistic configurations, such as the one appearing in ultrasonic testing experiments, is a major challenge, especially in the perspective of inversion loops or parametric studies.… read more here.
Keywords: propagation; based upon; ultrasonic testing; strategy ... See more keywords
A stochastic spectral finite element method for solution of faulting-induced wave propagation in materially random continua without explicitly modeled discontinuities
Sign Up to like & getrecommendations! Published in 2019 at "Computational Mechanics"
DOI: 10.1007/s00466-019-01692-5
Abstract: This paper proposes a new efficient stochastically adapted spectral finite element method to simulate fault dislocation and its wave propagation consequences. For this purpose, a dynamic form of the split node technique is formulated and… read more here.
Keywords: spectral finite; method; finite element; wave propagation ... 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
Uncertainty analysis of elastostatic problems incorporating a new hybrid stochastic-spectral finite element method
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DOI: 10.1080/15376494.2016.1202359
Abstract: ABSTRACT This article aims to present a combination of stochastic finite element and spectral finite element methods as a new numerical tool for uncertainty quantification. One of the well-established numerical methods for reliability analysis of… read more here.
Keywords: finite element; element method; analysis; spectral finite ... See more keywords
Time-Domain Spectral Finite Element Method for Modeling Second Harmonic Generation of Guided Waves Induced by Material, Geometric and Contact Nonlinearities in Beams
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Structural Stability and Dynamics"
DOI: 10.1142/s0219455420420055
Abstract: This study proposes a time-domain spectral finite element (SFE) method for simulating the second harmonic generation (SHG) of nonlinear guided wave due to material, geometric and contact nonlineari... read more here.
Keywords: finite element; domain spectral; harmonic generation; spectral finite ... See more keywords