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t. e. In materials science and continuum mechanics, viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation. Viscous materials, like water, resist both shear flow and strain linearly with time when a stress is applied.
Hemorheology. Hemorheology, also spelled haemorheology (haemo from Greek ‘αἷμα, haima ' blood '; and rheology, from Greek ῥέω rhéō, ' flow ' and -λoγία, -logia 'study of'), or blood rheology, is the study of flow properties of blood and its elements of plasma and cells. Proper tissue perfusion can occur only when blood's ...
The generalized Maxwell model also known as the Maxwell–Wiechert model (after James Clerk Maxwell and E Wiechert [1][2]) is the most general form of the linear model for viscoelasticity. In this model, several Maxwell elements are assembled in parallel. It takes into account that the relaxation does not occur at a single time, but in a set of ...
Standard linear solid model. The standard linear solid (SLS), also known as the Zener model after Clarence Zener, [1] is a method of modeling the behavior of a viscoelastic material using a linear combination of springs and dashpots to represent elastic and viscous components, respectively. Often, the simpler Maxwell model and the Kelvin ...
Viscoplasticity. Figure 1. Elements used in one-dimensional models of viscoplastic materials. Viscoplasticity is a theory in continuum mechanics that describes the rate-dependent inelastic behavior of solids. Rate-dependence in this context means that the deformation of the material depends on the rate at which loads are applied. [1]
The upper-convected Maxwell (UCM) model is a generalisation of the Maxwell material for the case of large deformations using the upper-convected time derivative. The model was proposed by James G. Oldroyd. The concept is named after James Clerk Maxwell. It is the simplest observer independent constitutive equation for viscoelasticity and ...
Viscoelasticity, a material property characterized by the extrusion of dual solid and liquid-like behaviors, is typically found in an array of polymer-based biomaterials, including those used in biomedical devices as well as in clinical settings. From polymer-based surface coatings on drug-eluting stents to entangled tissue networks that have ...
The Ogden material model is a hyperelastic material model used to describe the non-linear stress – strain behaviour of complex materials such as rubbers, polymers, and biological tissue. The model was developed by Raymond Ogden in 1972. [1] The Ogden model, like other hyperelastic material models, assumes that the material behaviour can be ...