• Corpus ID: 236154743

Viscoelasticity characterization of compressible soft matter via fluid-mediated dynamic interactions

@inproceedings{Karan2021ViscoelasticityCO,
  title={Viscoelasticity characterization of compressible soft matter via fluid-mediated dynamic interactions},
  author={Pratyaksh Karan and Jeevanjyoti Chakraborty and Suman Chakraborty},
  year={2021}
}
Characterizing the softness of deformable materials having partial elastic and partial viscous behaviour via soft lubrication experiments has emerged as a versatile and robust methodology in recent times. However, a straightforward extension of the classical elastohydrodynamic lubrication theory that is commonly employed for characterizing elastic materials turns out to be rather inadequate in explaining the response of such viscoelastic materials subjected to dynamic loading conditions… 

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References

SHOWING 1-10 OF 38 REFERENCES

Elastohydrodynamics of a soft coating under fluid-mediated loading by a spherical probe

Motion of an object near a soft wall with intervening fluid is a canonical problem in elastohydrodynamics, finding presence in subjects spanning biology to tribology. Particularly, motion of a sphere

Lubrication of soft viscoelastic solids

Lubrication flows appear in many applications in engineering, biophysics and nature. Separation of surfaces and minimisation of friction and wear is achieved when the lubricating fluid builds up a

Elastic deformation of soft coatings due to lubrication forces.

This work combines lubrication theory and solid linear elasticity to describe the dynamic of fluid drainage past a compliant stratified boundary and provides generalized contour maps that can be employed directly to estimate the elastic deformation present in most dynamic surface force measurements.

Soft lubrication: The elastohydrodynamics of nonconforming and conforming contacts

We study the lubrication of fluid-immersed soft interfaces and show that elastic deformation couples tangential and normal forces and thus generates lift. We consider materials that deform easily,

Elastic and Viscoelastic Poisson’s Ratios: The Theoretical Mechanics Perspective

A recent review publication presented an extensive and comprehensive assessment of the phenomenological relations of Poisson’s ratios (PRs) to the behavior and responses of contemporary materials

Enhancement of elastohydrodynamic friction by elastic hysteresis in a periodic structure.

This work shows that a two-phase periodic structure (TPPS), with a varying modulus across the sliding surface, provides significant enhancement of lubricated sliding friction when the system is in the elastohydrodynamic lubrication (EHL) regime.

Viscoelasticity of Polymers: Theory and Numerical Algorithms

This book offers a comprehensive introduction to polymer rheology with a focus on the viscoelastic characterization of polymeric materials. It contains various numerical algorithms for the processing

Clarifications of Certain Ambiguities and Failings of Poisson’s Ratios in Linear Viscoelasticity

Detailed new analytical investigations are presented describing the behavior of Class I, II and III viscoelastic Poisson’s ratios (PR). Their previously demonstrated dependence on stress-time

Hydrodynamic interactions for the measurement of thin film elastic properties

We study the elasto-hydrodynamic (EHD) interaction of a sphere with a flat elastic surface in the prospect of measuring the elastic moduli of soft supported thin films, with non-contact dynamic