Naslov
Monte Carlo Simulation of Measurement Uncertainty in Modified Hydraulic Bulging Determination of Flow Stress

Autori
Piljek, Petar ; Runje, Biserka ; Keran, Zdenka ; Škunca, Marko

Izvornik
Technical Gazette (1330-3651) 24 (2017), 3; 649-653

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Flow stress curve ; Measurement uncertainty ; Modified hydraulic bulging ; Monte Carlo simulation

Sažetak
In this paper an estimation of measurement uncertainty in determining the flow stress curve by modified hydraulic bulging was carried out. Modified hydraulic bulging is a newer method of the stress-strain diagram acquisition. The method has been derived from the hydraulic bulge test. The flow stressstrain curves were established for an aluminium sheet on an experimental apparatus designed for both methods. The assumption of the membrane stress state was used and the flow rule was determined, which was necessary for establishing the flow stress-true strain curve. The comparison between the experimentally obtained curve and standard true stress – true strain curve from literature is showed on a diagram. The estimation of measurement uncertainty was performed using the Monte Carlo simulation.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA