Tehnički vjesnik, Vol. 24 No. 4, 2017.
Prethodno priopćenje
https://doi.org/10.17559/TV-20170609133537
Determining elastic modulus of the material by measuring the deflection of the beam loaded in bending
Jasmina Miljojković
; Faculty of Engineering University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Srbija
Ivan Bijelić
; Polytechnic College "Novi Beograd", Bulevar Zorana Đinđića 152а, 11070 Novi Beograd, Srbija
Nenad Vranić
; Faculty of Engineering University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Srbija
Nikola Radovanović
; Faculty of Engineering University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Srbija
Milutin Živković
; Technical College of Applied Studies in Mechanical Engineering, Radoja Krstića 19, 37240 Trstenik, Srbija
Sažetak
The paper presents a theoretical model and design solution for the device which determines the modulus of elasticity by bending the material (test samples), instead of the usual stretching. The device was designed, assembled and successfully tested in the laboratory. Experimental determination of the elastic modulus was conducted by measuring the deflection of samples under a constant load. Values of the elastic modulus resulted from theoretical relations. Measurement was performed and measurement errors, i.e. device errors, were analysed.
Ključne riječi
deflection; device for determining the modulus of elasticity; elastic modulus; stress
Hrčak ID:
185511
URI
Datum izdavanja:
31.7.2017.
Posjeta: 30.291 *