The dynamic response of an initially flat viscoelastic membrane is investigated. The viscoelastic model is described with fractional order derivatives. The membrane is subjected to surface transverse and inplane dynamic loads. The governing equations are three coupled second order nonlinear partial FDEs (fractional differential equations) of hyperbolic type in terms of the displacement componen...

We present a simple model for the adhesive contact of viscoelastic bodies relevant for soft solids. This approach couples the interaction zone creep and the contact zone stress relaxation through a transform of the interaction stresses g(a). We show that g(a), which is proportional to the interaction stress intensity factor, can be extracted from experimentally determined contact variables and ...

This paper presents a semi-analytical model of shear wave scattering by a viscoelastic elliptical structure embedded in a viscoelastic medium, and its application in the context of dynamic elastography imaging. The commonly used assumption of mechanical homogeneity in the inversion process is removed introducing a priori geometrical information to model physical interactions of plane shear wave...

(2013). Optimised determination of viscoelastic properties using compliant measurement systems. Soft Matter, 9(23) pp. 5581–5593. For guidance on citations see FAQs. Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the poli...

Understanding the biomechanics of heart in health and disease plays an important role diagnosis treatment failure. The use computational biomechanical models for therapy assessment is paving way personalized treatment, relies on accurate constitutive equations mapping strain to stress. Current state-of-the art account nonlinear anisotropic stress-strain response cardiac muscle using hyperelasti...

PURPOSE During the last decades, derivatives and integrals of non-integer orders are being more commonly used for the description of constitutive behavior of various viscoelastic materials including soft biological tissues. Compared to integer order constitutive relations, non-integer order viscoelastic material models of soft biological tissues are capable of capturing a wider range of viscoel...

The time-independent elastic properties of trabecular bone have been extensively investigated, and several stiffness-density relations have been proposed. Although it is recognized that trabecular bone exhibits time-dependent mechanical behaviour, a property of viscoelastic materials, the characterization of this behaviour has received limited attention. The objective of the present study was t...

The purpose of the present investigation was to assess the effect of large tidal volumes and mean lung volumes on the viscoelastic properties of the respiratory system in normal humans; and to verify if in this case the results could be satisfactorily described by a simple linear viscoelastic model of the respiratory system. Twenty-eight subjects (7 females), aged 14-28 yrs, were studied before...