All publications Particles Seals Gears CVT Coatings Other

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Full list of publications (2023 to 1994), excluding technical reports

No.

Publication

Medium

54 Nikas, G. K. Performance mapping of rectangular-rounded hydraulic reciprocating seals to minimize leakage, frictional work and abrasive wear with the aid of a duty parameter. Tribology International, 2023, 179, 108191.
TRIBINT
53
Nikas, G. K. Approximate analytical solution for the pile-up (lip) profile in normal, quasi-static, elastoplastic, spherical and conical indentation of ductile materials. International Journal of Solids and Structures, 2022, 234-235, 111240. IJSS
52
Nikas, G. K. Particle entrapment in elliptical, elastohydrodynamic, rough contacts and the influence of intermolecular (van der Waals) forcesProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2021, 235(11), 2227-2246. JET
51
Nikas, G. K. Particle entrapment in line elastohydrodynamic contacts and the influence of intermolecular (van der Waals) forces. Lubricants, 2020, 8(5), article 60. lubricants
50
Nikas, G. K. Profile optimization of hydraulic, polymeric, sliding seals by minimizing an objective function of leakage, friction and abrasive wear. Lubricants, 2020, 8(4), article 40. lubricants
49
Nikas, G. K. Parametric and optimisation study of rectangular-rounded, hydraulic, elastomeric, reciprocating seals at temperatures between 54 and +135 C. Lubricants, 2018, 6(3), article 77. lubricants
48
Nikas, G. K. Fast performance-analysis of rectangular-rounded hydraulic reciprocating seals: mathematical model and experimental validation at temperatures between 54 and +135 C. Tribology International, 2018, 128, 34-51. TRIBINT
47
Nikas, G. K. Friction and wear of seals. ASM Handbook Vol. 18 - Friction, Lubrication, and Wear Technology (Ed.: G. Totten), pp. 957-968. ASM International, Ohio, USA, 2017. ASM Handbook
46
Nikas, G. K. Miscalculation of film thickness, friction and contact efficiency by ignoring tangential tractions in elastohydrodynamic contacts. Tribology International, 2017, 110, 252-263. TRIBINT
45
Nikas, G. K. Particle extrusion in elastohydrodynamic line contacts: dynamic forces and energy consumption. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2017, 231(10), 1320-1340. JET
44
Nikas, G. K. Algebraic equations for the pile-up geometry in debris particle indentation of rolling elastohydrodynamic contacts. ASME Journal of Tribology, 2016, 138(2), 021503-14. JoT
43
Nikas, G. K. Modeling dark and white layer formation on elastohydrodynamically lubricated steel surfaces by thermomechanical indentation or abrasion by metallic particles. ASME Journal of Tribology, 2015, 137(3), 031504-20. JoT
42
Nikas, G. K., Almond, R. V., Burridge, G. Experimental study of leakage and friction of rectangular, elastomeric, hydraulic seals for reciprocating motion from 54 to +135 C and pressures from 3.4 to 34.5 MPa. Tribology Transactions, 2014, 57(5), 846-865. TribTrans
41
Nikas, G. K. Strain-rate effects on the plastic indentation and abrasion of elastohydrodynamic contacts by debris particles. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2014, 228(1), 22-45. JET
40
Nikas, G. K. Debris particle indentation and abrasion of machine-element contacts: an experimentally validated, thermoelastoplastic numerical model with micro-hardness and frictional heating effects. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2013, 227(6), 579-617. JET
39
Nikas, G. K. An experimentally validated numerical model of indentation and abrasion by debris particles in machine-element contacts considering micro-hardness effects. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2012, 226(5), 406-438. JET
38
Nikas, G. K. (Ed.) Recent Developments in Wear Prevention, Friction and Lubrication. Research Signpost, Kerala, India, 2010. Book
37
Nikas, G. K. A state-of-the-art review on the effects of particulate contamination and related topics in machine-element contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2010, 224(5), 453-479. JET
36
Nikas, G. K. Eighty years of research on hydraulic reciprocating seals: review of tribological studies and related topics since the 1930s. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2010, 224(1), 1-23. JET
35 Nikas, G. K. Review of studies on the detrimental effects of solid contaminants in lubricated machine element contacts. First chapter (pp. 1-44) in the book entitled "Reliability Engineering Advances" (Ed.: G. I. Hayworth). Nova Science Publishers, New York, USA, 2009. Reliability Engineering Advances
34
Reddyhoff, T., Underwood, R. J., Nikas, G. K., Sayles, R. S., Spikes, H. A. Thermal aspects of debris in EHL contacts. Proceedings of the Fourth World Tribology Congress, 6-11 September 2009, Kyoto, Japan, paper C1-222, p. 308. WTC IV
33 Nikas, G. K., Sayles, R. S. Surface coatings and finite-element analysis of layered fretting contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2009, 223(2), 159-181. JET
32 Nikas, G. K. Research on the tribology of hydraulic reciprocating seals. First chapter (pp. 11-56) in the book entitled "Tribology Research Trends" (Ed.: T. Hasegawa). Nova Science Publishers, New York, USA, 2008. Tribology Research Trends
31
Nikas, G. K., Sayles, R. S. Finite-element analysis of layered rolling contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2008, 222(7), 865-886. JET
30
Nikas, G. K., Sayles, R. S. A study of lubrication mechanisms using two-phase fluids with porous bearing materials. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2008, 222(6), 771-783. JET
29
Nikas, G. K. Fundamentals of sealing and tribology of hydraulic reciprocating seals. Proceedings of the 1-day seminar "Focus on Reciprocating Seals", organised by the Tribology Group of the Institution of Mechanical Engineers, London, England, 25 June 2008. Focus on Reciprocating Seals
28
Nikas, G. K. Effects of operating conditions and friction on the entrapment of spherical debris particles in elliptical contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2007, 221(6), 727-741. JET
27
Nikas, G. K., Burridge, G., Sayles, R. S. Modelling and optimization of rotary vane seals. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2007, 221(6), 699-715. JET
26
Nikas, G. K. A mechanistic model of spherical particle entrapment in elliptical contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2006, 220(6), 507-522. JET
25
Nikas, G. K., Sayles, R. S. Modelling and optimization of composite rectangular reciprocating seals. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2006, 220(4), 395-412. JET
24
Nikas, G. K. Boussinesq-Cerruti functions and a simple technique for substantial acceleration of subsurface stress computations in elastic half-spaces. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2006, 220(1), 19-28. JET
23
Nikas, G. K., Sayles, R. S. Study of leakage and friction of flexible seals for steady motion via a numerical approximation method. Tribology International, 2006, 39(9), 921-936. TRIBINT
22
Nikas, G. K., Sayles, R. S. Computational model of tandem rectangular elastomeric seals for reciprocating motion. Tribology International, 2006, 39(7), 622-634. TRIBINT
21
Nikas, G. K., Sayles, R. S. Nonlinear elasticity of rectangular elastomeric seals and its effect on elastohydrodynamic numerical analysis. Sealing Technology, 2005, 2005(3), 6-11. Featured article, based on a previous paper of the authors; invited and compiled by Robert Flitney, Editor of Sealing Technology. Sealing Technology
20
Nikas, G. K. Theoretical study of solid back-up rings for elastomeric seals in hydraulic actuators. Tribology International, 2004, 37(9), 689-699. TRIBINT
19
Nikas, G. K., Sayles, R. S. Nonlinear elasticity of rectangular elastomeric seals and its effect on elastohydrodynamic numerical analysis. Tribology International, 2004, 37(8), 651-660. TRIBINT
18
Nikas, G. K. Transient elastohydrodynamic lubrication of rectangular elastomeric seals for linear hydraulic actuators. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2003, 217(6), 461-473. JET
17
Nikas, G. K. Analytical study of the extrusion of rectangular elastomeric seals for linear hydraulic actuators. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2003, 217(5), 365-373. JET
16
Nikas, G. K. Elastohydrodynamics and mechanics of rectangular elastomeric seals for reciprocating piston rods. ASME Journal of Tribology, 2003, 125(1), 60-69.
15
Nikas, G. K. Fatigue life and traction modelling of continuously variable transmissions. ASME Journal of Tribology, 2002, 124(4), 689-698.
14
Nikas, G. K. Particle entrainment in elastohydrodynamic point contacts and related risks of oil starvation and surface indentation. ASME Journal of Tribology, 2002, 124(3), 461-467.
13
Rana, A., Sayles, R., Nikas, G., Jalisi, I. An experimental technique for investigating the sealing principles of reciprocating elastomeric seals for use in linear hydraulic actuator assemblies. Proceedings of the 2nd World Tribology Congress, 3-7 September 2001, Vienna, Austria. Second
World
Tribology
Congress
12
Nikas, G. K. An advanced model to study the possible thermomechanical damage of lubricated sliding-rolling line contacts from soft particles. ASME Journal of Tribology, 2001, 123(4), 828-841.
11
Nikas, G. K. Mathematical analysis of the entrapment of solid spherical particles in non-conformal contacts. ASME Journal of Tribology, 2001, 123(1), 83-93.
10
Nikas, G. K. Theoretical modelling of the entrainment and thermomechanical effects of contamination particles in elastohydrodynamic contacts. Ph.D. and D.I.C. thesis, Imperial College London, London, England, 1999. PhD cover
9
Nikas, G. K., Sayles, R. S., Ioannides, E. Thermoelastic distortion of EHD line contacts during the passage of soft debris particles. ASME Journal of Tribology, 1999, 121(2), 265-271.
8
Nikas, G. K., Ioannides, E., Sayles, R. S. Thermal modelling and effects from debris particles in sliding/rolling EHD line contacts - A possible local scuffing mode. ASME Journal of Tribology, 1999, 121(2), 272-281.
7
Nikas, G. K., Sayles, R. S., Ioannides, E. Effects of debris particles in sliding/rolling elastohydrodynamic contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 1998, 212(5), 333-343. JET
6
Nikas, G. K., Sayles, R. S., Ioannides, E. Effects of debris particles in sliding/rolling EHD contacts. Proceedings of the First World Tribology Congress, 8-12 September 1997, London, England, p. 271. 2nd World Tribology Congress
5
Nikas, G. K. Elastohydrodynamic lubrication - a qualitative approach to the problem. Journal of the Hellenic Association of Mechanical and Electrical Engineers (in Greek), 1997, 302, 61-62. JHAMEE
4
Nikas, G. K. Load sharing and profile modification of spur gear teeth in the general case of any flank geometry. Proceedings of the International Conference on Gears, 22-24 April 1996, Dresden, Germany, VDI Berichte 1230, pp. 923-935.
VDI
3
Costopoulos, T., Nikas, G. K. Minimization of spur gear dynamic loading through the generalized theory of gearing. Proceedings of the International Congress - Gear Transmissions 95, 26-28 September 1995, Sofia, Bulgaria, vol. 1, pp. 52-56. International Congress - Gear Transmissions 95
2
Nikas, G. K., Costopoulos, T. Generalized theory of gearing and elastohydrodynamic lubrication of spur gears. Proceedings of the International Congress - Gear Transmissions 95, 26-28 September 1995, Sofia, Bulgaria, vol. 1, pp. 118-123. International Congress - Gear Transmissions 95
1
Nikas, G. K. Elastohydrodynamic lubrication and minimization of the dynamic loading of spur gears. Mechanical Engineering Diploma thesis in Greek. National Technical University of Athens, Greece, 1994. Diploma thesis