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Analysis by numerical calculations of the depth and dynamics of the penetration of ordered cellular structure made by casting from AlSi10Mg eutectic alloy

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Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Owing to high plastic deformability while maintaining stress values constant and relatively low, ordered cellular structures are characterised by excellent properties and the ability to dissipate the impact energy. Due to the low weight, structures of this type can be used, among others, for different parts of motor vehicles. For tests, a trapezoidal ordered cellular structure of 50.8 x 50.8 x 25.4 (mm) overall dimensions was selected. It was made as an investment casting from AlSi9Mg eutectic alloy by the method of Rapid Prototyping (RP). During FEM computations using an Abaqus programme, it was assumed that the material is isotropic and exhibits the features of an elastic – plastic body, introducing to calculations the, listed in a table, values of the stress-strain curve obtained in tensile tests performed on a MTS testing machine (10T). The computations used Johnson - Cook model, which is usually sufficiently accurate when modelling the phenomena of penetration of an element by an object of high initial velocity. The performed numerical calculations allowed identification of changes in speed and energy of the penetrator during structure perforation.
Rocznik
Strony
171--176
Opis fizyczny
Bibliogr. 13 poz., rys., tab., wykr.
Twórcy
autor
  • Faculty of Foundry Engineering, AGH University of Science and Technology, Reymonta 23, 30-059 Krakow, Poland
autor
  • Foundry Research Institute, Zakopiańska 73, 30-418 Kraków, Poland
autor
  • Foundry Research Institute, Zakopiańska 73, 30-418 Kraków, Poland
  • Foundry Research Institute, Zakopiańska 73, 30-418 Kraków, Poland
Bibliografia
  • [1] S. McKown: The quasi-static and blast loading response of lattice structures, International Journal of Impact Engineeannular, Vol. 35, pp. 795–810, 2008.
  • [2] W. Hou, F. Zhu: Ballistic impact expariments of metallic sandwich panels with aluminium foam core, International Journal of Impact Engineeannular, Vol. 37, pp. 1045–1055, 2010.
  • [3] Dean J.: Energy absorption duannular projectile perforation of thin steel plates and kinetic energy of ejected fragments, International Journal of Impact Engineeannular, pp. 1-9, 2009.
  • [4] Włodarczyk E.: Hydrodynamiczne modele wnikania długiego pręta w tarczę, Materiały z III Konferencji Naukowo-Technicznej, “Odporność Udarowa Konstrukcji”, 2001, s. 285-316.
  • [5] Piekło J., Pysz S., Małysza M: Proces wykonania i mechaniczne właściwości odlewanych, uporządkowanych konstrukcji komórkowych ze stopu Al-Si, Prace Instytutu Odlewnictwa Tom L, Nr 4, Kraków 2010.
  • [6] Gupta N.K., Iqubal M.A., Sekhon G.S.: Experimental and numerical studies on the behavior of thin aluminium plates subjected to impact by blunt and hemispherical-nosed projectiles, International Journal of Impact Engineeannular, Vol. 32, pp 1921-1944, 2006.
  • [7] Borvik T., Clausen H., Hopperstad S., Benallal A.: Flow and fracture of aluminium alloy AA5083-H116 as function of strain rate, temperature and triaxiality, Materials Science and Engineeannular, A364, pp. 260-272, 2004.
  • [8] Gołaski L.: Elementy doświadczalnej mechaniki pękania, Politechnika Świętokrzyska, Kielce 1992.
  • [9] Teirlinck D., Zok F., Embury J., Ashby M.: Fracture Mechanism Maps in Stress Space, Acta Metallurgica, Vol.36, No. 5, 1988, pp. 1213-1228.
  • [10] Argon S., Im J., Safoglu R.: Cavity Formation from Inclusions in Ductile Fracture, Metallurgical Transactions, Vol. 6A, 1975, pp. 825-837.
  • [11] Kown D., Asaro R.: A Study of Void Nucleation, Growth and Coalescence in Spheroidized 1518 Steel, Metallurgical Transactions, Vol. 21A, 1990, pp. 117-134.
  • [12] Piekło J., Maj M.: Effect of annular notch radius on the decohesion mode In AlSi alloys, Archives of Foundry Engineeannular, Vol. 9, Issue 2, April – June 2009 s. 25–28.
  • [13] Gibson L. J., Ashby M. F.:Cellular Solids – Structure and Properties, Pergamon Press, Oxford – Toronto.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-9853d781-0e0b-4ed7-b1bc-9c46e6dbe427
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