What is viscoelastic behavior?
What is viscoelastic behavior?
Viscoelastic behaviour is a combination of elastic and viscous behaviour where the applied stress results in an instantaneous elastic strain followed by a viscous, time-dependent strain.
What is viscoelasticity in biomechanics?
biomechanics passive stretching Aug 19, 2021. “Viscoelasticity” is a word that refers to the fact that muscle is a viscoelastic material that exhibits both viscous and elastic characteristics when it is subjected to tensile and compressive forces (Zatsiorsky & Prilutsky, 2012).
What is viscous behavior?
Viscous flow is irreversible, once a body has been distorted stays that way, producing a permanent strain. All liquids show viscous behavior when strained, think when you squeeze toothpaste from a tube. During viscous behavior strain accumulates as a function of time, as shown in Figure 1.7.
What is viscoelasticity fluid?
Viscoelastic fluids are a type of non-Newtonian fluid formed by a viscous component and an elastic one. For short, viscoelastic fluids are the blend of a solvent and some polymer. Examples of these are paints, DNA suspensions, some biological fluids and others from the chemical industry.
What is viscoelastic effect?
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 shear flow and strain linearly with time when a stress is applied.
What causes viscoelastic behavior?
Viscoelasticity is caused by temporary connections between fiber-like particles. Polymers always show a viscoelastic behavior because they consist of long molecules able to make temporary connections with their neighbors.
What is viscoelasticity of muscle?
A MATERIAL’S ABILITY TO DAMP MOVEMENT BY BECOMING STIFFER AT HIGHER RATES OF ELONGATION.
What is viscoelasticity example?
Some examples of viscoelastic materials include amorphous polymers, semicrystalline polymers, biopolymers, metals at very high temperatures, and bitumen materials. Cracking occurs when the strain is applied quickly and outside of the elastic limit.
What is viscoelasticity material?
Being viscoelastic means that the material to some extent both behaves like a liquid and a solid material, and that it has a time-dependent strain.
What is viscoelastic used for?
Viscoelastic substances often are employed in cataract surgery to protect the corneal endothelium and to facilitate intraocular lens (IOL) insertion. Sodium hyaluronate, the agent with perhaps the widest clinical use, frequently causes marked postoperative IOP elevations.
What is viscoelasticity of food?
Viscous fluids generally exhibit viscosity while solids exhibit elasticity. Some foods show both viscous and elastic properties which are known as viscoelastic materials. The typical food example for viscoelastic fluids is wheat flour dough.