A theory of reciprocating contacts for linear viscoelastic materials is presented. Results are discussed for the case of a rigid sphere sinusoidally driven in sliding contact with a viscoelastic half-space. Depending on the size of the contact, the frequency and amplitude of the reciprocating motion, and on the relaxation time of the viscoelastic body, we establish that the contact behavior may range from the steady-state viscoelastic solution, in which traction forces always oppose the direction of the sliding rigid punch, to a more elaborate trend never observed before, which is due to the strong interaction between different regions of the path covered during the reciprocating motion. Practical implications span a wide range of applications, ranging from seismic engineering to biotechnology.
Theory of reciprocating contact for viscoelastic solids / Putignano, Carmine; Carbone, Giuseppe; Dini, Daniele. - In: PHYSICAL REVIEW. E. - ISSN 2470-0045. - 93:4(2016). [10.1103/PhysRevE.93.043003]
Theory of reciprocating contact for viscoelastic solids
Putignano, Carmine;Carbone, Giuseppe;Dini Daniele
2016-01-01
Abstract
A theory of reciprocating contacts for linear viscoelastic materials is presented. Results are discussed for the case of a rigid sphere sinusoidally driven in sliding contact with a viscoelastic half-space. Depending on the size of the contact, the frequency and amplitude of the reciprocating motion, and on the relaxation time of the viscoelastic body, we establish that the contact behavior may range from the steady-state viscoelastic solution, in which traction forces always oppose the direction of the sliding rigid punch, to a more elaborate trend never observed before, which is due to the strong interaction between different regions of the path covered during the reciprocating motion. Practical implications span a wide range of applications, ranging from seismic engineering to biotechnology.File | Dimensione | Formato | |
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