Ultrasonic Testing - COMSOL.com

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Simulations with COMSOL MultiphisycsThe sound field is described and solved by the pressure p.The acoustic pressure in the time domain p(t) is obtained as a function of the spectralcomponents as:pfNt p f cos2f t p f i fi1minampfmaxiphaseiN number of components of the spectra in the frequency rangeCOMSOL CONFERENCE EUROPE 2012
Simulations with COMSOL MultiphisycsAnalytic model of Pressure Acoustics, Frequency Domain interfaceThe acoustic pressure p(t ) in a medium is governed by the following equationthat is an inhomogeneous Helmholtz equation:1 pkteqcpptp2 c b; k• ρ is the density of the material [kg/m 3 ],• c is the speed of sound [m/s];• Q [1/s 2 ] is a monopole acoustic sourcek2eqptc c Qj; ccc2c2COMSOL CONFERENCE EUROPE 2012
Page 1 and 2: Excerpt from the Proceedings of the
Page 3 and 4: IntroductionThe Research Group in E
Page 5 and 6: Non-Destructive TestingAmong NDTs,
Page 7 and 8: Ultrasonic TestingThe testing metho
Page 9 and 10: Ultrasonic TestingDue to media diss
Page 11 and 12: Experimental sessionFront view of t
Page 13 and 14: Experimental set-upUltrasonic measu
Page 15 and 16: Experimental sessionA signal has be
Page 17 and 18: Experimental signals crossing the 4
Page 19 and 20: Simulations with COMSOL Multiphisyc
Page 21: Simulations with COMSOL Multiphisyc
Page 25 and 26: Simulations with COMSOL Multiphisyc
Page 27 and 28: Simulated signals crossing the 4 pa
Page 29 and 30: ResultsSimilarly to what is found f
Page 31 and 32: ConclusionsThe purpose of this work
Page 33: Thanks for your kind attentionThank

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