Frictional sliding modes along an interface between identical elastic plates subject to shear impact loading

Çöker, Demirkan
Needleman, A.
Rosakis, A.J.
Frictional sliding along an interface between two identical isotropic elastic plates under impact shear loading is investigated experimentally and numerically. The plates are held together by a compressive stress and one plate is subject to edge impact near the interface. The experiments exhibit both a crack-like and a pulse-like mode of sliding. Plane stress finite element calculations modeling the experimental configuration are carried out, with the interface characterized by a rate and state dependent frictional law. A variety of sliding modes are obtained in the calculations depending on the impact velocity, the initial compressive stress and the values of interface variables. For low values of the initial compressive stress and impact velocity, sliding occurs in a crack-like mode. For higher values of the initial compressive stress and/or impact velocity, sliding takes place in a pulse-like mode. One pulse-like mode involves well-separated pulses with the pulse amplitude increasing with propagation distance. Another pulse-like mode involves a pulse train of essentially constant amplitude. The propagation speed of the leading pulse (or of the tip of the crack-like sliding region) is near the longitudinal wave speed and never less than root 2 times the shear wave speed. Supersonic trailing pulses are seen both experimentally and computationally. The trends in the calculations are compared with those seen in the experiments.
Journal of the Mechanics and Physics of Solids


Friction identification and compensation of its effects in stabilized platforms
Sincar, Eyyüp; Balkan, Raif Tuna; Platin, Bülent Emre; Department of Mechanical Engineering (2013)
A frequent problem encountered in the stabilization of a dynamic system supported by a moving base is the disturbance rejection associated with moving components. Due to relative motion of adjacent components, the friction induces a destabilizing force from base motion to the stabilized object, which degrades the motion accuracy. Therefore, the compensation of frictional effects is necessary in order to obtain a highly precise stabilization performance, especially, when the stabilized system undergoes low-v...
Dynamic Frictional Sliding Modes between Two Homogenous Interfaces
Taj, W.; Çöker, Demirkan (2017-09-15)
Dynamic frictional sliding behaviour between two homogenous Homalite blocks is studied. The blocks are initially held together using a constant compressive stress. The sliding motion is initiated by impacting one of the blocks with an external object. The resulting sliding modes are inspected. Initiation of fretting is examined by studying the opening stresses in the interface.
Sliding contact on the interface of elastic body and rigid surface using a single block Burridge-Knopoff model
Amireghbali, A.; Çöker, Demirkan (2017-09-15)
Burridge and Knopoff proposed a mass-spring model to explore interface dynamics along a fault during an earthquake. The Burridge and Knopoff (BK) model is composed of a series of blocks of equal mass connected to each other by springs of same stiffness. The blocks also are attached to a rigid driver via another set of springs that pulls them at a constant velocity against a rigid substrate. They studied dynamics of interface for an especial case with ten blocks and a specific set of fault properties. In our...
Elastic-plastic deformation of a rotating solid disk of exponentially varying thickness
Eraslan, Ahmet Nedim (2002-07-01)
The elastic-plastic deformation of a rotating solid disk of variable thickness in exponential form is investigated using Tresca's yield criterion, its associated flow rule and linear strain hardening. An analytical solution is obtained and numerical results are presented for different values of the geometric parameters. In the limiting case of uniform thickness the solution reduces to Garner's solution.
Elastic analysis of a circumferential crack in an isotropic curved beam using the modified mapping-collocation method
Amireghbali, Aydin; Çöker, Demirkan (2014-07-01)
The modified mapping-collocation (MMC) method was applied to the boundary value problem (BVP) of a circumferential crack in an isotropic elastic curved beam subjected to pure bending moment loading. The stress correlation technique is then used to determine opening and sliding mode stress intensity factor (SIF) values based on the computed stress field near the crack tip. The MMC method aims at solving two-dimensional BVP of linear elastic fracture mechanics (LEFM) circumventing the need for direct treatmen...
Citation Formats
D. Çöker, A. Needleman, and A. J. Rosakis, “Frictional sliding modes along an interface between identical elastic plates subject to shear impact loading,” Journal of the Mechanics and Physics of Solids, pp. 884–922, 2005, Accessed: 00, 2020. [Online]. Available: