Stress analysis and applicability analysis of the elliptical head

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 au...

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Autores principales:	Zhanhui Wang, Zhifang Zhang, Jinzhong Chen, Jinjun Bai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/57fbd8835b0b45a39e4817e75765438f
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spelling	oai:doaj.org-article:57fbd8835b0b45a39e4817e75765438f2021-11-28T12:18:26ZStress analysis and applicability analysis of the elliptical head10.1038/s41598-021-02397-72045-2322https://doaj.org/article/57fbd8835b0b45a39e4817e75765438f2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02397-7https://doaj.org/toc/2045-2322Abstract 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.Zhanhui WangZhifang ZhangJinzhong ChenJinjun BaiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhanhui Wang Zhifang Zhang Jinzhong Chen Jinjun Bai Stress analysis and applicability analysis of the elliptical head
description	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.
format	article
author	Zhanhui Wang Zhifang Zhang Jinzhong Chen Jinjun Bai
author_facet	Zhanhui Wang Zhifang Zhang Jinzhong Chen Jinjun Bai
author_sort	Zhanhui Wang
title	Stress analysis and applicability analysis of the elliptical head
title_short	Stress analysis and applicability analysis of the elliptical head
title_full	Stress analysis and applicability analysis of the elliptical head
title_fullStr	Stress analysis and applicability analysis of the elliptical head
title_full_unstemmed	Stress analysis and applicability analysis of the elliptical head
title_sort	stress analysis and applicability analysis of the elliptical head
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/57fbd8835b0b45a39e4817e75765438f
work_keys_str_mv	AT zhanhuiwang stressanalysisandapplicabilityanalysisoftheellipticalhead AT zhifangzhang stressanalysisandapplicabilityanalysisoftheellipticalhead AT jinzhongchen stressanalysisandapplicabilityanalysisoftheellipticalhead AT jinjunbai stressanalysisandapplicabilityanalysisoftheellipticalhead
_version_	1718408077870366720

Stress analysis and applicability analysis of the elliptical head

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