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- Title
MONTE CARLO SIMULATION OF MEASUREMENT UNCERTAINTY IN MODIFIED HYDRAULIC BULGING DETERMINATION OF FLOW STRESS.
- Authors
Piljek, Petar; Keran, Zdenka; Runje, Biserka; Škunca, Marko
- Abstract
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.
- Subjects
MECHANICAL stress analysis; MEASUREMENT uncertainty (Statistics); MONTE Carlo method; STRESS-strain curves; BULGING (Metalwork)
- Publication
Technical Gazette / Tehnički Vjesnik, 2017, Vol 24, Issue 3, p649
- ISSN
1330-3651
- Publication type
Article
- DOI
10.17559/TV-20140828211548