000086793 001__ 86793
000086793 005__ 20190316233742.0
000086793 037__ $$aARTICLE
000086793 245__ $$aModeling and simulation of an impact test using wavelets, analytical solutions and finite elements
000086793 269__ $$a2001
000086793 260__ $$c2001
000086793 336__ $$aJournal Articles
000086793 520__ $$aAn instrumented falling weight impact test is thoroughly investigated in two cases, that of a rebound and that of a rupture in the sample. First, the force signal is analyzed with four methods: the continuous wavelet transform (with different wavelets: derivatives of a Gaussian and Morlet's), the Gabor transform, the Wigner–Ville transform and the classical Fourier analysis. It is shown how a proper use of the time–frequency methods allows to precisely detect the discontinuities in the signal, the moment of rupture, if any, and the frequencies that are excited at the impact. In a second part, modal and stress analyses are carried out, both by an analytical method and by finite element computations. The results confirm those obtained in the first part and agree with experimental findings.
000086793 6531_ $$aanalysis;
000086793 6531_ $$aelements
000086793 6531_ $$aFinite
000086793 6531_ $$aImpact;
000086793 6531_ $$aLTS2
000086793 6531_ $$aSignal
000086793 6531_ $$aWavelets;
000086793 700__ $$0240428$$g120906$$aVandergheynst, P.
000086793 700__ $$aAntoine, J.
000086793 700__ $$aVanVyve, E.
000086793 700__ $$aGoldberg, A.
000086793 700__ $$aDoghri, I.
000086793 773__ $$j33$$tInternational Journal of Solids and Structures$$q5481-5508
000086793 8564_ $$uhttps://infoscience.epfl.ch/record/86793/files/Vandergheynst2001_25.pdf$$zn/a$$s1524950
000086793 909C0 $$xU10380$$0252392$$pLTS2
000086793 909CO $$qGLOBAL_SET$$pSTI$$ooai:infoscience.tind.io:86793$$particle
000086793 937__ $$aEPFL-ARTICLE-86793
000086793 970__ $$aVandergheynst2001_25/LTS
000086793 973__ $$sPUBLISHED$$aEPFL
000086793 980__ $$aARTICLE