Frictional Sliding Modes using the Maxwell-Slip Model
3rd International Workshop on Plasticity, Damage and Fracture of Engineering Materials, IWPDF 2023, İstanbul, Turkey, 4 - 06 October 2023, vol.61, pp.300-304, (Full Text)
- Publication Type: Conference Paper / Full Text
- Volume: 61
- Doi Number: 10.1016/j.prostr.2024.06.038
- City: İstanbul
- Country: Turkey
- Page Numbers: pp.300-304
- Keywords: Frictional sliding modes, Maxwell-slip model, Sliding friction, Steady sliding, Stick-slip
- Open Archive Collection: AVESIS Open Access Collection
- Middle East Technical University Affiliated: Yes
Abstract
This study investigates the frictional sliding dynamics occurring at the interface between two bodies in contact by using the Maxwell-slip model at the microscopic scale. The elastic body is modeled as a set of independent mass-spring units that are pulled with a rigid driver moving at a constant speed on top. Coulomb friction law is assumed at the mass-spring level. Initial compressive loading is represented by the degree of Poisson's expansion and its effect on the frictional sliding behavior is examined by using a dynamic solution to the Maxwell-slip model. Both stick-slip behavior and steady state behavior is observed for decreasing compressive loading. Our results show that stick-slip behavior at the macroscopic scale is observed caused by crack-like slip propagation at the microscopic scale at higher compressive loads. Macroscopically diminishing stick-slip behavior is observed for higher initial compressive loading conditions as pulse-like slip propagation through the interface is observed. At the highest initial compressive loading condition, propagation of train of pulses through the interface at the microscopic scale is observed causing a steady sliding behavior at the macroscale.