Opalić, Milan and Galić, Ivica and Vučković, Krešimir (2012) Influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies. = Influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies. In: 10th International Conference on Fracture and Damage Mechanics, FDM2011, 19-21.09.2011., Dubrovnik; Croatia.
Full text not available from this repository.Abstract
A globe valve is a linear motion valve used to shut off and regulate fluid flow in pipelines. Depending on the number of process connections, they are produced as two- or three-way valves. The main valve component carrying the internal pressure is the valve body. For safe exploitation, the valves are designed with the allowable internal pressure taken into consideration. The aim of this paper is to investigate the influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies, DN50 and DN100 respectively. Twiceelastic-slope (TES) and the tangent-intersection (TI) methods are used to obtain the plastic collapse pressures at the critical location which was determined (Fig. 1a and 1b) at the location where maximum equivalent plastic strain throughout the valve body thickness reaches the outer surface. Obtained values are used afterwards to calculate corresponding allowable pressures according to the limit design method, while the failure pressure at the same location was determined as the highest point from the load-maximal principal strain curve. Calculated allowable pressure values, for both valve bodies, are compared with the corresponding ones obtained using the EN standard. © (2012) Trans Tech Publications.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Keywords (Croatian): | A-GLOBE; Allowable pressure; Critical location; EN standards; Equivalent plastic strain; Failure pressure; Globe valve; Internal Pressure; Limit design; Linear motion; Main valve; Outer surface; Plastic collapse pressure; Plastic collapse pressures; Pressure values; Principal strain; Wall thickness; Flow measurement; Flow of fluids; Plant extracts; Pressure; Fracture |
| Subjects: | TECHNICAL SCIENCE |
| Divisions: | 100 Department of Design > 120 Chair of Machine Elements |
| Indexed in Web of Science: | No |
| Indexed in Current Contents: | No |
| Date Deposited: | 24 Apr 2015 12:37 |
| Last Modified: | 14 Nov 2016 13:46 |
| URI: | http://repozitorij.fsb.hr/id/eprint/3980 |
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