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Warianty tytułu
Języki publikacji
Abstrakty
This paper presents two triaxial finite element (FE) models: a “full model” and a “quarter model”, representing the contact between the specimen’s rough surface and the ideally smooth and flat surface of the punch. Models have a contact zone that represents the topography of the real surface and has elastoplastic properties close to those of the real contact. The contact zone was entirely modelled on the basis of roughness measurements performed on a real milled specimen made of 5083 aluminium alloy. The developmentof the FE models, the stages in their refinement and the interlinking of the contact zone with the material of the specimen are described. The results of the computed deformations occurring during the specimen contact loading with the punch were compared with the experimental results. The possible causes of the observed deviations of the computer simulation results from the experimental ones were discussed. The models were used to analyse the effect of the specimen’s material properties, i.e. Young’s modulus, yield strength, compressive strength and material hardening, on the deformations in the contact. On this basis a procedure for predicting the parameters describing the contact characteristic in cases of changes in the properties of the subsurface zone is proposed.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
40--53
Opis fizyczny
Bibliogr. 18 poz., rys., tab.
Twórcy
autor
- Wroclaw University of Science and Technology, Department of Machine Tools and Mechanical Technologies, Wroclaw, Poland
autor
- Wroclaw University of Science and Technology, Department of Machine Tools and Mechanical Technologies, Wroclaw, Poland
Bibliografia
- [1] GROCHOWSKI M., 2010, Model of mechatronic fixture with active error compensation, Inżynieria Maszyn, 15/1-2, 67-79, (in Polish).
- [2] MACIOŁKA P., JEDRZEJEWSKI J., 2008, Modelling the behaviour of a contact layer between the workpiece and the locator, Journal of Machine Engineering, 8/3, 42-53.
- [3] ITO Y., 2008, Modular design for machine tools, ISBN 10: 0071496602 / ISBN 13: 978007149660.
- [4] Xu Y., JACKSON R.L., MARGHITU D.B., 2014, Statistical model of nearly complete elastic rough surface contact, Int. J. Solids Struct., 51/5, 1075-1088.
- [5] GREENWOOD J.A., 2015, On the almost-complete contact of elastic rough surfaces: The removal of tensile patches, Int. J. Solids Struct., 56-57, 258-264.
- [6] MAKODONSKI Z., A mathematical model of the contact between two real flat surfaces and of their deformations, PhD thesis, Wroclaw University of Technology, 1980, (in Polish).
- [7] GOERKE D., WILLNER K., 2008, Normal contact of fractal surfaces-Experimental and numerical investigations, Wear, 264, 589-598.
- [8] ZOU M., YU B., FENG Y. XU P., 2007, A Monte Carlo method for simulating fractal surfaces, Physica A, 386, 1, 176-186.
- [9] WU, J.J., 2000, Simulation of rough surfaces with FFT, Tribol. Int., 33/1, 47-58.
- [10] GANTI S., BHUSHAN B., 1995, Generalized fractal analysis and its applications to engineering surfaces, Wear, 180, 17-34.
- [11] BORA C.K., PLESHA M.E., CARPICK R.W., 2013, A Numerical contact model based on real surface topography, Tribology Letters, 50/3, 331-347.
- [12] ZHANG S., WANG W., ZHAO Z., 2014, The effect of surface roughness characteristics on the elastic-plastic contact performance, Tribol. Int., 79, 59-73.
- [13] WALTER C, ANTRETTER T., 2009, 3D versus 2D finite element simulation of the effect of surface roughness on nanoindentation of hard coatings, Surface Coatings Technology, 203, 3286-3290.
- [14] MACIOŁKA P., JEDRZEJEWSKI J., GROCHOWSKI M., 2014, A device for the experimental investigation of surface contact under load, Journal of Machine Engineering, 14/3, 97-112.
- [15] MACIOŁKA P., 2015. Experimental investigation of flat surfaces in contact, Journal of Machine Engineering, 15/2, 92-103.
- [16] DENKENA B., LEON L.D., 2009, Milling induced residual stresses in structural parts out of forged aluminium alloys, Int J Mach Mach Mater 4/4, 335-344.
- [17] HUANG X. SUN J., LI J., HAN X., XIONG Q., 2013, An experimental investigation of residual stresses in high-speed end milling 7050-T7451 aluminium alloy, Advances Mechanical Engineering, 7, DOI: 10.1155/2013/ 592659.
- [18] DRYZEK E., 2008, Surface research of aluminium and aluminium alloys using annihilation positrons and complementary methods, Habilitation thesis, Institute of Nuclear Physics, Polish Academy of Science, (in Polish).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-607b3e20-e246-4d80-aba6-1cdb987ff92d