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  • Journal article
    Cann PME, 1999,

    Thin-film grease lubrication

    , Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, Vol: 213, Pages: 405-416, ISSN: 1350-6501
  • Book chapter
    Kim TH, Olver AV, 1999,

    The fatigue behaviour of chamfered steel cylinders

    , Lubrication at the Frontier, Editors: Dowson, Priest, Taylor, Ehret, Childs, Dalmaz, Berthier, Flamand, Georges, Lubrecht, Publisher: Elsevier Science, Pages: 267-275, ISBN: 9780444502674
  • Book chapter
    Hurley S, Cann PME, 1999,

    IR spectroscopic analysis of grease lubricant films in rolling contacts

    , Lubrication at the Frontier, Editors: Dowson, Priest, Taylor, Ehret, Childs, Dalmaz, Berthier, Flamand, Georges, Lubrecht, Publisher: Elsevier, Pages: 589-600, ISBN: 9780444502674
  • Conference paper
    Jacod B, Pubilier F, Cann PME, Lubrecht AAet al., 1999,

    Track replenishment in and out of contact

    , 25th Leeds-Lyon Symposium on Tribology, Pages: 483-492
  • Journal article
    Anghel V, Bovington C, Spikes HA, 1999,

    Thick-boundary-film formation by friction modifier additives

    , Lubrication Science, Vol: 11, Pages: 313-335, ISSN: 0954-0075
  • Patent
    Sayles RS, Ioannides E, 1999,

    Lubrication system

    , W0 99/66222
  • Journal article
    Spikes HA, 1999,

    Thin films in elastohydrodynamic lubrication: the contribution of experiment

    , Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, Vol: 213, Pages: 335-352, ISSN: 1350-6501
  • Journal article
    Cann PME, 1999,

    Starved grease lubrication of rolling contacts

    , Tribology Transactions, Vol: 42, Pages: 867-873, ISSN: 1040-2004
  • Conference paper
    Olver AV, Medina S, Baker RF, Davies DPet al., 1999,

    Fretting and wear of splined couplings

    , Institution of Mechanical Engineers: Aerospace Division: Coupling and Shaft Technology for Aerospace Transmissions Solihull, 9 June 1999
  • Conference paper
    Guangteng G, Olver AV, Spikes HA, 1999,

    Contact resistance measurements in mixed lubrication

    , Proceedings of the 1999 STLE/ASME, Publisher: ASME, Pages: 64-71
  • Journal article
    Ratoi Salagean M, Spikes HA, 1999,

    Lubricating properties of aqueous surfactant solutions

    , Tribology Transactions, Vol: 42, Pages: 479-486, ISSN: 1040-2004
  • Journal article
    Nikas GK, Ioannides E, Sayles RS, 1999,

    Thermal modeling and effects from debris particles in sliding/rolling EHD line contacts - A possible local scuffing mode

    , Transactions of the ASME Journal of Tribology, Vol: 121, Pages: 272-281, ISSN: 0742-4787
  • Book chapter
    Graham J, Spikes HA, 1999,

    The behaviour of Molybdenum Dialkyldithiocarbamate friction modifier additives

    , Lubrication at the Frontier, Editors: Dowson, Priest, Taylor, Ehret, Childs, Dalmaz, Berthier, Flamand, Georges, Lubrecht, Publisher: Elsevier Science, Pages: 759-766, ISBN: 9780444502674
  • Conference paper
    Merieux JS, Hurley S, Lubrecht AA, Cann PMEet al., 1999,

    Shear degradation of grease and base oil availability in starved EHL lubrication

    , 26th Leeds-Lyon Symposium on Tribology, Publisher: Elsevier, Pages: 581-588, ISSN: 0167-8922
  • Journal article
    Hurley S, Cann PME, 1999,

    The influence of grease composition on film thickness in rolling contacts

    , NLGI Spokesman (National Lubricating Grease Institute), Vol: 63, Pages: 12-22, ISSN: 0027-6782
  • Journal article
    Cann PME, Lubrecht AA, 1999,

    Analysis of grease lubrication in rolling element bearings

    , Lubrication Science, Vol: 11, Pages: 227-245, ISSN: 0954-0075
  • Journal article
    Nikas GK, Sayles RS, Ioannides E, 1999,

    Thermoelastic distortion of EHD line contacts during the passage of soft debris particles

    , Transactions of the ASME Journal of Tribology, Vol: 121, Pages: 265-271, ISSN: 0742-4787
  • Conference paper
    Guangteng G, Olver A, Spikes H, 1999,

    Contact resistance measurements in mixed lubrication

    , Proceedings of the 1999 STLE/ASME, Publisher: ASME, Pages: 64-71
  • Journal article
    Lee-Prudhoe I, Sayles RS, Kaderic A, 1998,

    Investigations into asperity persistence in heavily loaded contacts

    , American Society of Mechanical Engineers (Paper), Pages: 1-8, ISSN: 0402-1215

    Experimental results are presented along the lines of the early work of Moore (1948) where a hard smooth roller is pressed into a softer rough surface to study the resulting real to apparent areas of contact and their associated local contact pressures. Results are presented for a hard steel roller deforming mild-steel and aluminum-alloy rough surface specimens. An analysis of the local contact mechanics is performed before and after indentation using a recently developed numerical elastic contact simulation method which allows local asperity contact pressures and areas to be studied in detail. The method is shown to reveal the level and distribution of pressures and asperity contact areas prevalent during the indentation process, and therefore allows the contribution of elastic and plastic load support to be quantified. The persistence of asperities during such indentation tests is discussed in terms of the pressures the asperities can support in relation to reported mechanisms of persistence. Results of subsequent sub-surface stresses are also presented and discussed in terms of how the method might be used to create an elastic-plastic deformation model that can account for asperity persistence in future numerical contact simulation models.

  • Conference paper
    Hurley S, Cann PM, Spikes HA, 1998,

    Thermal degradation of greases and the effect on lubrication performance

    , 24th Leeds-Lyon Symposium on Tribology, Publisher: ELSEVIER SCIENCE BV, Pages: 75-83
  • Journal article
    Chevalier F, Lubrecht AA, Cann PME, Colin F, Dalmaz Get al., 1998,

    Film thickness in starved EHL point contacts

    , JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, Vol: 120, Pages: 126-133, ISSN: 0742-4787
  • Patent
    Sayles RS, Ioannides E, 1998,

    Lubrication system

  • Conference paper
    Lubrecht AA, Chevalier F, Cann PME, 1998,

    Evolution of lubricant film defects in the starved regime

    , 24th Leeds-Lyon Symposium on Tribology Tribology for energy conservation, Pages: 233-242, ISSN: 0167-8922
  • Conference paper
    Smeeth M, Spikes HA, Gunsel S, 1998,

    Behaviour of viscosity index improver containing oils in non-steady state contacts

    , SAE Technical Paper 982579, Publisher: Society of Automotive Engineers
  • Journal article
    Kim TH, Olver AV, 1998,

    Stress history in rolling-sliding contact of rough surfaces

    , Tribology International, Vol: 31, Pages: 727-736, ISSN: 0301-679X
  • Conference paper
    Spikes HA, 1998,

    Some challenges to tribology posed by energy efficient technology

    , Amsterdam, Tribology for energy conservation, Publisher: Elsevier, Pages: 35-47
  • Journal article
    Cann PME, 1998,

    Film thickness in starved EHL point contacts

    , Transactions of the ASME Journal of Tribology, Vol: 120, Pages: 126-133, ISSN: 0742-4787
  • Book chapter
    Hurley S, Cann PME, Spikes HA, 1998,

    Thermal degradation of greases and the effect on lubrication performance

    , Tribology for energy conservation, Editors: Dowson, Dowson, Amsterdam, Publisher: Elsevier, Pages: 75-83, ISBN: 9780444500335
  • Conference paper
    Chinas-Castillo F, Ratoi Salagean M, Spikes HA, 1998,

    Behavior of collodial particles in high pressure lubricated contacts

    , STLE Annual Meeting Detroit May 1998
  • Conference paper
    Chevalier F, Lubrecht AA, Cann PME, Dalmaz Get al., 1998,

    The evolution of lubricant film defects in the starved regime

    , Pages: 233-242, ISSN: 0167-8922
  • Conference paper
    Lee-Prudhoe I, Starkey MS, Sayles RS, 1998,

    Observations of frictional behaviour of MoS2 and dependence on surface roughness orientation

    , Tribology for energy conservation: proceedings of the 24th Leeds-Lyon symposium on tribology London 4-6 September 1997, Publisher: Elsevier, Pages: 129-137
  • Conference paper
    Hamilton RW, Sayles RS, Ioannides E, 1998,

    Wear due to debris particles in rolling bearing contacts

    , Proceedings of the 24th Leeds/Lyon Symposium on Tribology: Tribology for energy conservation, Publisher: Elsevier, Pages: 87-93
  • Conference paper
    Anghel V, Bovington C, Spikes HA, 1998,

    Thick film formation by friction modifier additives

    , Symposium Industrial and Automotive Lubrication Esslingen January 1998
  • Patent
    Sayles RS, Ioannides E, 1998,

    Cage lubrication

    , NL 98014
  • Journal article
    Nikas GK, Sayles RS, Ioannides E, 1998,

    Effects of debris particles in sliding/rolling elastohydrodynamic contacts

    , Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, Vol: 212, Pages: 333-343, ISSN: 1350-6501
  • Conference paper
    Wilkinson CR, Kim TH, Olver AV, 1998,

    Pitting failure in gears: the effect of some novel materials and treatments

    , British Gear Association Annual Congress, Telford March 1998, Publisher: Kamtech, Pages: 40-50
  • Journal article
    Sugimura J, Jones WR, Spikes HA, 1998,

    EHD film thickness in non-steady state contacts

    , Transactions of the ASME Journal of Tribology, Vol: 120, Pages: 442-452, ISSN: 0742-4787
  • Journal article
    Mitsui H, Spikes HA, 1998,

    Predicting EHD film thickness of lubricant polymer solutions

    , Tribology Transactions, Vol: 41, Pages: 1-10, ISSN: 1040-2004
  • Conference paper
    la Fountain A, Johnston GJ, Spikes HA, 1998,

    Elastohydrodynamic friction behaviour of polyalphaolefin blends

    , Amsterdam, Tribology for energy conservation: Proceedings of 24th Leeds-Lyon Symposium London September 1997, Publisher: Elsevier, Pages: 465-475
  • Journal article
    Olver AV, Spikes HA, 1998,

    Prediction of traction in elastohydrodynamic lubrication

    , Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, Vol: 212, Pages: 321-332, ISSN: 1350-6501
  • Journal article
    Olver AV, 1997,

    Correlation factors for the 2D coated Hertzian contact problem

    , WEAR, Vol: 212, Pages: 265-267, ISSN: 0043-1648
  • Journal article
    Cann P, 1997,

    Grease lubricant film distribution in rolling contacts

    , NLGI Spokesman (National Lubricating Grease Institute), Vol: 61, Pages: 22-29, ISSN: 0027-6782
  • Journal article
    Gunsel S, Spikes HA, 1997,

    Film formation behavior of lubricant base stocks in concentrated contacts.

    , ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 213, Pages: 152-PETR, ISSN: 0065-7727
  • Journal article
    Guangteng G, Spikes HA, 1997,

    An experimental study of film thickness in the mixed lubrication regime

    , Tribology Series, Vol: 32, Pages: 159-166, ISSN: 0167-8922

    This paper describes an experimental study of the influence of surface roughness on elastohydrodynamic film thickness in a steel ball on glass flat contact under nominally pure rolling conditions. Steel balls with a range of isotropic roughnesses have been employed and measurements have focused on the mixed lubrication regime where the film thickness is comparable to or below the composite surface roughness. It has been found that full film lubrication is only realised when the nominal lambda ratio (X) has a value of 2 or higher. Below this value, the film thickness decreases, first gradually and then rapidly, as the nominal smooth surface lambda ratio decreases. The mixed regime, where both roughness and entrainment velocity influence film separation, appears to span a large range in terms of the lambda ratio, from λ = 2 to λ = 0.1. The mean separation between rough surfaces in static contacts has been measured over a range of loads and the problem of the precise definition of lubricant film thickness in rough surface conditions is discussed. © 1997 Elsevier Science B.V. All rights reserved.

  • Conference paper
    Spikes H, 1997,

    Advances in the study of thin lubricant films

    , 1st World Tribology Congress - New Directions in Tribology, Publisher: MECHANICAL ENGINEERING PUBLISHING LTD, Pages: 355-369
  • Book chapter
    Anghel V, Cann PME, Spikes HA, 1997,

    Direct measurement of boundary lubricating films

    , Elastohydrodynamics '96 Proceedings of the Leeds-Lyons Symposium on Elastohydrodynamics '96 Leeds September 1996, Editors: Dowson, Amsterdam, Publisher: Elsevier, Pages: 459-466, ISBN: 9780444416773
  • Journal article
    Ratoi Salagean M, Spikes HA, 1997,

    Design of lubricious oil-in-water emulsions

    , Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, Vol: 211, Pages: 195-208, ISSN: 1350-6501
  • Book chapter
    Ratoi Salagean M, Spikes HA, 1997,

    The lubricant film-forming properties of a modern fire-resistant hydraulic fluids

    , Tribology of Hydraulic Pump Testing ASTM STP 1310, Editors: Totten, Kling, Smolenski, Philadelphia, Publisher: American Society for Testing and Materials, Pages: 21-37, ISBN: 9780803124226
  • Book chapter
    Spikes HA, 1997,

    Advances in the study of thin lubricant films

    , New directions in tribology, Editors: Hutchins, Publisher: M.E.P., Pages: 353-369, ISBN: 9781860580994
  • Conference paper
    Hirst DJ, Olver AV, 1997,

    Failure of very high speed elastohydrodynamic contacts

    , Proceedings of the 23rd Leeds-Lyon Symposium on Tribology "Elasthydrodynamics", Publisher: Elsevier, ISSN: 0167-8922

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