Article
Engineering, Chemical
Dongze Wang, Gregory de Boer, Sadegh Nadimi, Anne Neville, Ali Ghanbarzadeh
Summary: The newly developed algorithm provides stable solutions to partial-slip problems of elastically dissimilar materials by adopting a global search method and an alternative convergence criterion. The study shows that surface roughness parameters have an influence on partial-slip solutions under coupled conditions, with different results at different loads.
Article
Engineering, Mechanical
Liming Zhao, Penghui Cao
Summary: The computational study on the atomic-scale stick-slip friction of monolayer graphene on a copper substrate reveals a strong temperature dependence of friction force and friction mode. The role of Moire superlattices in affecting friction force is significant, especially at different temperatures, leading to changes in friction behavior and transition from athermal to thermally activated friction modes.
EXTREME MECHANICS LETTERS
(2021)
Article
Multidisciplinary Sciences
Kasra Farain, Daniel Bonn
Summary: Regardless of surface roughness or compression, the stress relaxation of microcontacts is the same as that of bulk material. Friction is not always proportional to the contact area. This allows us to predict frictional aging of rough interfaces based on the bulk material properties of two typical polymers: polypropylene and polytetrafluoroethylene.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Mechanical
Jinsoo Choi, Hyungjo Seo, Seok Su Sohn, Ho Jang
Summary: This study investigates the stick-slip phenomena at a low-velocity range and explores the effect of brake pad size on friction instability. The results show that smaller pads exhibit higher stick-slip amplitudes within narrower velocity ranges. Friction levels are influenced by the total contact plateau area, while the stick-slip amplitudes are affected by the size of high-pressure plateaus. The pronounced stick-slip with small pads is attributed to the presence of large high-pressure plateaus, which increase static friction.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Mechanics
Benat Gurrutxaga-Lerma
Summary: An analytic formulation is presented for the study of planar elastodynamic contact in bimaterial interfaces subject to dry friction and slip. The elastic waves scattered by a planar contact interface are analytically expressed using the Wiener-Hopf technique. The magnitude of the stick and slip regions at the interface can be determined using the derived formulation, providing a complete analytic understanding of the interfacial tractions and allowing for modeling of elastic wave scattering in various fields.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2023)
Article
Chemistry, Physical
Mohd I. Ishak, Illia Dobryden, Per Martin Claesson, Wuge H. Briscoe, Bo Su
Summary: Frictional and nanomechanical properties of nanostructured polymer surfaces play a crucial role in their applications. This study investigated the relationship between nanopillar height and friction coefficient, and found correlations between frictional instabilities and nanopillar density, pull-off force, and work of adhesion. The results suggest that multiparametric nanotribological analysis of nanostructured surfaces should go beyond classic Amontons' laws, with SSAC being more representative of the frictional properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Mechanical
Xuan-Ha Nguyen, Hung-Anh Nguyen
Summary: This study theoretically investigates the influences of fabrication tolerances on the operational characteristics of Piezo-actuated stick-slip micro-drives (PASSMDs) and contributes to the field by providing physical explanations for important phenomena observed in experimentally detected PASSMDs. The study evaluates the effects of fabrication tolerances on the operational characteristics of PASSMDs through hybrid-dynamic simulations and provides insights for designers to optimize future generations of PASSMDs.
FACTA UNIVERSITATIS-SERIES MECHANICAL ENGINEERING
(2022)
Article
Engineering, Mechanical
Gaurav Chauda, Daniel J. Segalman
Summary: Problems of elastic frictional contact are of great engineering relevance and historically difficult to analyze, a novel contact algorithm, the Method of First Violation, has been introduced to address the deficiency identified in traditional methods and demonstrated its generality and robustness on contact problems with a nontraditional friction model.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Laura Mariana Babici, Andrei Tudor, Jordi Romeu
Summary: This experimental study investigates the relationship between low-demand acoustic emission parameters and stick-slip phenomenon. The results show that the amplitude and energy of the low-frequency acoustic emission signals are sensitive to the occurrence of stick-slip, demonstrating the potential of acoustic emission as a tool for detecting and monitoring tribological behavior.
APPLIED SCIENCES-BASEL
(2022)
Article
Physics, Fluids & Plasmas
Hansol Jeon, Youchuang Chao, Stefan Karpitschka
Summary: The surface mechanics of soft solids play a crucial role in various natural and technological applications. The wetting behavior of soft polymer gels has been studied as a model system, but the theoretical descriptions are still controversial. Experimental measurements of moving wetting ridges on ultrasoft PDMS gels reveal that the commonly used elastocapillary scaling fails to explain the ridge shapes, while the capillary extraction of an oil skirt seems to be a promising approach.
Article
Chemistry, Physical
Dongze Wang, Gregory de Boer, Ali Ghanbarzadeh
Summary: In this paper, a new model is developed to investigate the effects of viscoelasticity on stick-slip behavior. It is found that the rheological property of a viscoelastic material is characterized by the ratio of retardation time to relaxation time. Materials with higher ratios exhibit more fluid-like behaviors while those with lower ratios perform more like solid. The stick ratio, when the contact input is constant, is found to be insensitive to the viscoelasticity of materials. However, the separation pattern of stick and slip regions varies with time when different contact phenomena are encountered.
Article
Engineering, Mechanical
Zhen Zhou, Xudong Zheng, Qi Wang, Zhang Chen, Yiyong Sun, Bin Liang
Summary: The paper presents a modeling method and algorithm for point contact non-smooth multibody system based on the 2D LuGre friction model. Parameter identification and dynamic modeling were discussed, showing the effectiveness of the method in simulating stick slip motion and simplifying numerical algorithms. The method was applied to wheel mechanisms with single-point and multi-point contact, demonstrating its ability to analyze stick-slip motions.
MECHANISM AND MACHINE THEORY
(2021)
Article
Mathematics, Applied
Asifur Rahman, Kevin R. Mackie
Summary: This paper presents a novel implementation of the traditional node-to-node Coulomb contact-friction problem using run-time parameter updates on conventional elasto-plastic elements. The proposed method defines two-noded elements with independent uniaxial force-deformation relations in each degree of freedom. Parameters that control the frictional interface responses are updated based on contact detection, eliminating the need for modifying the finite element library. The proposed algorithm can be applied to different cases and validated with closed-form solutions and experimental results.
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2023)
Article
Geosciences, Multidisciplinary
John D. Bedford, Daniel R. Faulkner
Summary: The study found that quartz gouge exhibits unstable stick-slip behavior under high σn conditions, while slow-slip is more prevalent under low σn conditions. Localization and instability are mainly promoted by high effective normal stress and small grain size.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Multidisciplinary
Qing-Hui Luo, Yue-Ting Zhou, Mehmet Ali Guler
Summary: In this paper, the anisothermal adhesive contact between an elastic cylinder and an elastic substrate is studied, considering the coupling effect between the normal and tangential tractions within the contact region. The full analytical solutions of the oscillatory stress fields are obtained for the first time, which is of substantial significance. Numerical results demonstrate the difference between the oscillatory and non-oscillatory solutions of stress fields and the significant influences of thermoelastic effect and the inclined angle of the applied force on the adhesive contact behaviors. The results provide new insights into the influence mechanism of temperature on adhesion behaviors.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Engineering, Chemical
P. M. McGuiggan, A. Chiche, J. J. Filliben, D. J. Yarusso
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2008)
Article
Chemistry, Multidisciplinary
Boxin Zhao, Noshir Pesika, Kenny Rosenberg, Yu Tian, Hongbo Zeng, Patricia McGuiggan, Kellar Autumn, Jacob Israelachvili
Article
Chemistry, Multidisciplinary
Kai Kristiansen, Patricia McGuiggan, Greg Carver, Carl Meinhart, Jacob Israelachvili
Article
Chemistry, Multidisciplinary
Patricia M. McGuiggan, Daniel A. Grave, Jay S. Wallace, Shengfeng Cheng, Andrea Prosperetti, Mark O. Robbins
Meeting Abstract
Chemistry, Multidisciplinary
Patricia M. McGuiggan, Jun Ma
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2009)
Article
Physics, Applied
P. M. McGuiggan, J. S. Wallace, D. T. Smith, I. Sridhar, Z. W. Zheng, K. L. Johnson
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2007)
Article
Polymer Science
P. M. McGuiggan, M. L. Gee, H. Yoshizawa, S. J. Hirz, J. N. Israelachvili
Article
Multidisciplinary Sciences
Yu Tian, Noshir Pesika, Hongbo Zeng, Kenny Rosenberg, Boxin Zhao, Patricia McGuiggan, Kellar Autumn, Jacob Israelachvili
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2006)
Article
Engineering, Chemical
Patricia M. McGuiggan, Jay S. Wallace
JOURNAL OF ADHESION
(2006)
Article
Chemistry, Multidisciplinary
EK Hobbie, BJ Bauer, J Stephens, ML Becker, P McGuiggan, SD Hudson, H Wang
Article
Chemistry, Physical
BH Cipriano, SR Raghavan, PM McGuiggan
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2005)
Article
Physics, Fluids & Plasmas
Yu Tian, Hongbo Zeng, Travers H. Anderson, Boxin Zhao, Patricia McGuiggan, Jacob Israelachvili
Article
Engineering, Chemical
Noshir S. Pesika, Yu Tian, Boxin Zhao, Kenny Rosenberg, Hongbo Zeng, Patricia McGuiggan, Kellar Autumn, Jacob N. Israelachvili
JOURNAL OF ADHESION
(2007)
Article
Engineering, Electrical & Electronic
BD Vogt, CL Soles, CY Wang, VM Prabhu, PM McGuiggan, JF Douglas, EK Lin, WL Wu, SK Satija, DL Goldfarb, M Angelopoulos
JOURNAL OF MICROLITHOGRAPHY MICROFABRICATION AND MICROSYSTEMS
(2005)