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Keywords: polymers
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Journal Articles
Article Type: Research Papers
J. Tribol. October 2011, 133(4): 041404.
Published Online: October 14, 2011
..., the present model has been used to simulate the contact between a polymethyl methacrylate (PMMA) substrate and a rigid sphere driven by step, ramped, and harmonic normal loads. The validated model and numerical method can successfully compute the viscoelastic contact responses of polymer-based materials...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2011, 133(4): 041201.
Published Online: October 10, 2011
... )], pyrolytic carbon [( 7 )], steel [( 10 )], ceramics [( 10 ), 11 ], glass [( 4 ), 12 ], and polymers [( 4 )] has been measured more recently. However, direct comparisons between published data are not possible due to widely varying techniques and materials, ranging from in vivo canine animal models...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031101.
Published Online: July 7, 2011
...Arthur Francisco; Houssein Abbouchi; Bernard Villechaise The background of the present study is the rolling contact fatigue (RCF) in a brittle polymer disk. The disk has been tested on a two disk machine, under controlled normal and tangential loads, with no global slip. After several million...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011102.
Published Online: December 4, 2008
... by setting it to 0, 8, or 22 later. 27 02 2008 09 09 2008 04 12 2008 elastic deformation finite element analysis internal stresses mechanical contact polymers rolling bearings tapered roller bearing dynamics cage behavior elastic deformation stress In some...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011404.
Published Online: December 4, 2008
...A. Ovcharenko; G. Halperin; I Etsion The creep of a polymer sphere contacting a rigid flat under a constant normal load is investigated experimentally. An optical technique is used to observe in situ the evolution of the contact area while the increase of contact interference is measured...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2008, 130(4): 041507.
Published Online: August 7, 2008
...Masayuki Kanatsu; Hiroyuki Ohta A running torque analysis was performed on axially loaded deep groove ball bearings lubricated with a polymer lubricant. The analysis included a Type I and a Type II bearing. The Type I bearing has a stamped steel riveted cage with its cavity packed with the polymer...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2008, 130(2): 022301.
Published Online: March 13, 2008
...Susumu Ogata; Hedong Zhang; Kenji Fukuzawa; Yasunaga Mitsuya Using a coarse-grained molecular dynamics simulation based on the bead-spring polymer model, we reproduced the film distribution of molecularly thin lubricant films with polar end groups coated on the disk surface and quantified the film...
Journal Articles
Article Type: Technical Papers
J. Tribol. October 2007, 129(4): 836–840.
Published Online: May 1, 2007
... used for surgeries, microassembly, and micromanipulation. 03 04 2006 01 05 2007 friction piezoelectric materials piezoelectricity polymers surface phenomena piezoelectric material PVDF friction surface characterization Polyvinylidene fluoride (PVDF) is a well...
Journal Articles
Article Type: Technical Papers
J. Tribol. April 2007, 129(2): 326–335.
Published Online: November 14, 2006
... 2006 polymers cobalt alloys chromium alloys prosthetics biomechanics lubrication wear rolling friction sliding friction creep elasticity differential equations Newton-Raphson method knee prosthesis oscillatory contact wear UHMWPE elastohydrodynamic lubrication Total...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2006, 128(2): 275–281.
Published Online: November 21, 2005
... and pitting does not necessarily mean large material loss. wear prosthetics biomechanics polymers bone cobalt alloys chromium alloys One of the most remarkable joints in the human body is the knee. In a healthy knee, the bones are covered with articular cartilage and the contact...
Journal Articles
Article Type: Technical Briefs
J. Tribol. April 2006, 128(2): 436–441.
Published Online: November 4, 2005
...) and a green filter from the bottom (transmitted light). Green light passes up through UHMWPE debris (the polymer being birefringent), and looks green, yellow or light pink in the microscope viewer, depending on the thickness of the particle. Metal debris being more opaque reflect the red light coming down...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2006, 128(2): 267–274.
Published Online: October 6, 2005
... in this paper is not exactly two dimensional. However, the effect of web width can be estimated by this “1.5-dimensional” model with an acceptable accuracy as shown in subsequent experiments. 25 02 2004 06 10 2005 rollers (machinery) traction polymers thin films permeability...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2006, 128(1): 113–121.
Published Online: July 6, 2005
... contact (which could also be called the real area of contact). This treatment has been used in metal-on-metal couples, as in Dintenfass ( 21 ) and Komvopoulos et al. ( 22 ), but is valid for PE-on-metal couples as well. (Other models for metal-on-polymer wear have been proposed, e.g., Ref. 23...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2005, 127(4): 740–749.
Published Online: June 1, 2005
... material acting as the disk. Intrinsic to this configuration, however, is the fact that the polymer experiences constant load across the entire contacting surface area of the pin, and wear is measured by gravimetric analysis of material removal. This is contrary to the in vivo condition of total knee joint...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2005, 127(4): 766–775.
Published Online: May 5, 2005
... was lubricated by 10W–30 oil. Surface analysis revealed that the formation of lubricative protective layers on the surfaces in contact is crucial to reducing friction, and more importantly, wear. FTIR results confirmed that film transfer occurs in the case of POM. 19 08 2004 05 05 2005 polymers...
Journal Articles
Article Type: Article
J. Tribol. April 2005, 127(2): 280–286.
Published Online: April 7, 2005
... in the ASME JOURNAL OF TRIBOLOGY . Manuscript received by the Tribology Division January 24, 2003 revised manuscript received March 10, 2004. Review conducted by: M. D. Bryant. 24 January 2003 10 March 2004 07 04 2005 polymers biomedical materials sliding friction biomechanics...
Journal Articles
Article Type: Article
J. Tribol. April 2005, 127(2): 405–415.
Published Online: April 7, 2005
... surfaces. Primary and secondary forms of the additive are shown to form films of different morphology and properties. Colloid probe atomic force microscopy has also been applied to study the boundary film-forming properties of functionalized viscosity modifier polymers. It is shown that these polymers can...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2005, 127(4): 729–739.
Published Online: March 22, 2005
... of both the cup inclination angle and the combined flexion-extension and internal-external rotation on the lubrication were analyzed. 17 03 2004 22 03 2005 polymers lubrication prosthetics biomedical materials biomechanics physiological models orthopaedics Elastohydrodynamic...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2006, 128(1): 96–102.
Published Online: November 12, 2004
... as function of the operating parameters. Consistent relations were also found between the integrated AE signal over time and the wear volume as well as the friction work. 14 02 2003 12 11 2004 steel polymers sliding friction acoustic emission wear Many studies have so far been...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2004, 126(4): 802–808.
Published Online: November 9, 2004
... (Assoc. Ed.). 13 September 2003 18 March 2004 09 11 2004 polymers wear failure (mechanical) Monte Carlo methods sliding friction Engineered systems are subject to several modes of failure, including plastic deformation, fracture, fatigue, excess deflections, and wear...