Adhesion Induced Deformations of a Highly Compliant Elastomeric Substrate in Contact with Rigid Particles

Rimai, D. S.; Demejo, L. P.; Vreeland, W. B.; Bowen, R. C.

doi:10.1021/la00023a071

Cited by 19 publications

(26 citation statements)

References 1 publication

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“…When two spheres have similar Young's moduli, two J values in general should be used: one for the compressive external load case to ensure a flat contact area, i.e., J A cs = A flat = πa 2 ; the other for the tensile external load case to describe the curved contact surface. However, for a rigid glass particle in contact with the highly compliant polyurethane substrate [22,23], only one J value should be taken into account for the curved contact interface effect. The equation 12by Rimai et al [23] is:…”

Section: Contact Pressure Adhesion Energy and Equilibriummentioning

confidence: 99%

“…Experimentally, measuring the normal displacement δ is also much easier than measuring the contact radius a [45]. However, many theoretical analysis [1,5,6,15,28] and experiments [5,22,28,29,46] are done using the P -a curves. This paper adopts the P -a curve approach for comparison purposes.…”

Section: Contact Pressure Adhesion Energy and Equilibriummentioning

confidence: 99%

“…The experiments by Rimai et al [22,23] show that for some small particles, the 2/3 JKR power-law dependence of contact radius on particle radius is violated and an anomalous 3/4 power-law is found. Rimai et al ruled out the plastic deformation causing the anomalous power-law [22,23]. Rimai et al ascribed this anomalous powerlaw to the curved contact interface effect [23].…”

Section: Introductionmentioning

confidence: 99%

“…A direct impact of the contact area flatness is on the calculation of the adhesion energy, which together with the elastic energy of deformation determines the final contact state [19,21]. The experiments by Rimai et al [22,23] show that for some small particles, the 2/3 JKR power-law dependence of contact radius on particle radius is violated and an anomalous 3/4 power-law is found. Rimai et al ruled out the plastic deformation causing the anomalous power-law [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Adhesion Map of Spheres: Effects of Curved Contact Interface and Surface Interaction Outside Contact Region

Yin

2011

Journal of Adhesion Science and Technology

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In this work three dimensionless parameters are introduced in the debate concerning hard contact models. These parameters are related to the overall adhesive contact area, curved surface contribution and surface interaction forces outside the contact region. With the variations of these three parameters, the relations and transitions between the different hard contact models such as Hertz, Bradley, Johnson-Kendall-Roberts (JKR), Derjaguin-Muller-Toporov (DMT) and Maugis-Dugdale (MD) models are presented in a systematic way. The combination of the three parameters provides a new hybrid model. The influence of these three parameters on the contact between spheres has been studied. By analyzing the pressure profiles of contact region, two new instability jumps are proposed. The instability jumps together with the three parameters are used to explain some recent experimental and numerical observations which deviate more or less from those predicated by the classical hard contact models.

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Section: Contact Pressure Adhesion Energy and Equilibriummentioning

confidence: 99%

Section: Contact Pressure Adhesion Energy and Equilibriummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Adhesion Map of Spheres: Effects of Curved Contact Interface and Surface Interaction Outside Contact Region

Yin

2011

Journal of Adhesion Science and Technology

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“…In addition, current theories do not always predict the correct power law dependence of the contact radius on particle radius. For example, it has been found that the contact radius of micrometer size particles in contact with elastomeric substrates can vary as the particle radius to the 3/4 power [28][29][30] rather than the 2/3 power, as predicted by the JKR theory. This paper reports results obtained from a first principles approach to the problem of particle adhesion.…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamic modeling of interfacial energy

Quesnel

Rimai

Demejo

1995

Journal of Adhesion Science and Technology

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Molecular dynamic modeling is used to calculate the changes in the energy between two surfaces when the surfaces are first allowed to approach one another and, subsequently, separated. The equations of motion of the atoms, which were assumed to interact via a Lennard-Jones potential, were integrated using Verlet's algorithm. They were implemented in an environment of periodic boundary conditions, feedback loop temperature and pressure controllers, with direct computation of the stress and strain tensors. This approach allows one to calculate the temperature dependence of the 'leap-to-contact' phenomenon, the thermodynamic work of adhesion, the work needed to separate the surfaces, and the forces of attraction and separation. Effects that occur during approach and separation, such as surface roughening and vacancy formation, were included in the energetics calculations. Sound waves and the resulting thermal transients were also modeled. The adhesion hysteresis and irreversible behaviors during approach and separation that arise from these calculations are discussed in detail.

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A Study of Particles Adhesion to Compliant Substrates with a Modified Sphere Contact Model

Lü

2015

Tribol Lett

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Adhesion Induced Deformations of a Highly Compliant Elastomeric Substrate in Contact with Rigid Particles

Cited by 19 publications

References 1 publication

Adhesion Map of Spheres: Effects of Curved Contact Interface and Surface Interaction Outside Contact Region

Adhesion Map of Spheres: Effects of Curved Contact Interface and Surface Interaction Outside Contact Region

Molecular dynamic modeling of interfacial energy

A Study of Particles Adhesion to Compliant Substrates with a Modified Sphere Contact Model

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