Stress analysis and applicability analysis of the elliptical head
Open Access
- 25 November 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 11 (1), 1-12
- https://doi.org/10.1038/s41598-021-02397-7
Abstract
As the main pressure components of pressure vessels, the mechanical performance of cylinders and heads affects the normal operation of pressure vessels. At present, no unified theoretical formula exists for the connection region between an elliptical head and the cylinder. Therefore, the authors consider the standard elliptical head as the research object. First, the theoretical stress calculation formula is deduced according to the deformation continuity equation. Second, the stress is experimentally measured using an internal-pressure thin-walled-vessel stress measurement device, and the theoretical and experimental stress values in the discontinuous region between the elliptical head and cylinder are analysed and compared to verify the accuracy and applicability of the theoretical stress calculation formula. The results show that the theoretical stress calculation formula in the discontinuous region between the elliptical head and cylinder is valid. By comparing and analysing the theoretical and experimental stress values, the accuracy and applicability of the theoretical stress calculation formula in the discontinuous region are verified. The findings can provide guidance for the stress measurement of internal-pressure vessels.Funding Information
- Shanxi Provincial innovation capacity support plan (2020td-032)
- Shanxi Provincial Department of education key scientific research plan (19js069)
- National Natural Science Foundation of China (21763030)
- Yulin science and technology plan in 2019 (2019-83-7)
- Shanxi science and Technology Department Project (2021JM-522)
This publication has 35 references indexed in Scilit:
- Investigation of the effects of perturbation forces to buckling in internally pressurized torispherical pressure vessel headsAdvances in Engineering Software, 2012
- Extreme Pressure EquipmentsChinese Journal of Mechanical Engineering, 2011
- Shape optimization of filament wound articulated pressure vessels based on non-geodesic trajectoriesComposite Structures, 2010
- Limit analysis of strain-hardening viscoplastic cylinders under internal pressure by using the velocity control: Analytical and numerical investigationInternational Journal of Mechanical Sciences, 2008
- A hierarchical decision procedure for productivity innovation in large-scale petrochemical processesComputers & Chemical Engineering, 2008
- Design of fiber-reinforced composite pressure vessels under various loading conditionsComposite Structures, 2002
- THEORETICAL SOLUTION AND FINITE ELEMENT SOLUTION FOR AN ORTHOTROPIC THICK CYLINDRICAL SHELL UNDER IMPACT LOADJournal of Sound and Vibration, 2000
- Finite element analysis of composite pressure vessels with a load sharing metallic linerComposite Structures, 2000
- The elastic compensation method for limit and shakedown analysis: A reviewThe Journal of Strain Analysis for Engineering Design, 2000
- Experimental Tests on Buckling of Torispherical Heads and Methods of Plastic Bifurcation AnalysisJournal of Pressure Vessel Technology, 1986