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Showing 1 to 8 of 8 for “"visco-elasticity"”.
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Molecular Modeling Studies of Dendrimers and Hyperbranched Polymers
… dendrimers are found to exhibit much lower viscosities and negligible visco-elasticity, compared to linear chains of the same molecular weight. Studies on mixed linear-hyperbranched polymers, with precisely varying degrees of branching, indicate that an abrupt transition from dendrimer-like …
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Study of creep characteristics of multi-layered corrugated fibre board protective cushions
… to simulate creep data, the Voigt model of Visco-elasticity, a spring – damper model makes a reasonable choice of model. This model is an exponentially decaying expression that can be adapted with respect to static strain, stress or stiffness and can be fitted to creep data. Curve fitting …
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Viscous Dampers for Optimal Reduction in Seismic Response
… in vibrating civil structures, existence of viscous damping is commonly assumed primarily for mathematical convenience. In such a classical damper, the damping force is assumed to depend only on the velocity of deformation. Fluid viscous dampers that provide this type of damping have been …
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Investigating the mechanical properties of yeast cells
… such as water loss during compression and visco-elasticity of the cell wall could be and were neglected in the model. As in previously published work, a linear elastic constitutive equation was assumed for the material of the cell walls. However, yeast compression to failure requires large …
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Intercellular flow-mediated force relaxation measurement on the three-dimensional multicellular tissue
… properties like stiffness, surface tension, and viscosity have been shown to relate to diseases like fibrosis or tumor metastasis. Multicellular tissues have been traditionally modeled as a viscoelastic material due to their apparent shape rearrangement, which hardly considers the internal …
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Dynamic and equilibrium adsorption behaviour of ß-lactoglobulin at the solution/tetradecane interface: Effect of solution concentration, pH and ionic strength
… corresponding equation of state. The dilational visco-elasticity of the BLG adsorbed interfacial layers is determined from measured dynamic interfacial tensions during sinusoidal drop area variations. The interfacial tension responses to these harmonic drop oscillations are interpreted with the …
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Determination of Wear in Polymers Using Multiple Scratch Test.
Wear is an important phenomenon that occurs in all the polymer applications in one form or the other. However, important links between materials properties and wear remain illusive. Thus optimization of material properties requires proper understanding of polymer properties. Studies to date have …
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Computer-aided design of tension structures
… The creep effects which arise from the visco-elasticity present in most membrane materials are also considered. A strategy based on the Voigt-Kelvin model is used to calculate for the accumulated creep strains. An outline is given of an incremental procedure to allow for the on/off …