000021584 001__ 21584
000021584 005__ 20170622131253.0
000021584 04107 $$aeng
000021584 046__ $$k2017-06-15
000021584 100__ $$aYe, Wenfeng
000021584 24500 $$aFINITE ELEMENT MODEL FOR NONLINEAR SHEAR WAVE PROPAGATION IN NEARLY-INCOMPRESSIBLE SOFT TISSUES

000021584 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021584 260__ $$bNational Technical University of Athens, 2017
000021584 506__ $$arestricted
000021584 520__ $$2eng$$aNonlinear viscoelastic Landau's theory which is widely used in acoustical physic field is introduced into a finite element formulation. It is designed to model the nonlinear behaviour of finite amplitude shear waves in soft solids, typically, in biological tissues. In experiments of transient elastography [1], the nonlinear behaviour of shear waves is generally presented in spectral domain, it has been observed that, in plane shear wave propagation, the cubic nonlinearity in high amplitude wave at the frequency of f generates odd harmonics at 3f, 5f. In this work, the numerical models based on these experiments are presented. The simulation are carried out by the selective mass scaling method presented in [2], the results show a good agreement with the experimental study (see Figure).

000021584 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021584 653__ $$a

000021584 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021584 720__ $$aYe, Wenfeng$$iRochette, Michel$$iCatheline, Stefan$$iCombescure, Alain$$iBel-Brunon, Aline
000021584 8560_ $$ffischerc@itam.cas.cz
000021584 8564_ $$s240373$$uhttps://invenio.itam.cas.cz/record/21584/files/17098.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS15] Non-Linear Dynamics and Wave Propagation
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000021584 962__ $$r21500
000021584 980__ $$aPAPER