Geometric Constants in Plain Cross-Bored Cylinders

Author:

Kihiu J. M.1,Rading G. O.1,Mutuli S. M.1

Affiliation:

1. Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya

Abstract

A three-dimensional FEM computer program was developed to establish the stress distributions and SCFs in thick walled cylinders with flush and nonprotruding plain cross bores under internal pressure. The displacement formulation and eight-noded brick isoparametric elements were used. The Frontal solution technique was used due to the limited computing facilities. In the far field, the FEM stresses and displacements were in good agreement with the through thickness analytical values. The variation of SCF with d was established for various thickness ratios. For k>1.25, the maximum hoop stress occurred away from the crotch corner when d⩽0.2. For k=1.25, the maximum hoop stress occurred away from the crotch corner when d⩽0.15. For k⩾1.75, d was found to be a geometrical constant equal to 0.2 where the k values have a SCF of 2.734. For k<1.75, d was found to be a geometrical constant equal to 0.11 where the k values have a SCF of 2.67. A new categorization of cylinders has been proposed: thin shells, thick shells, and thick cylinders.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference47 articles.

1. Fryer, D. M. , 1981, “High Pressure Safety System Analysis: A Proposed Method,” ASME J. Pressure Vessel Technol., 48.

2. Zapfec, C. A. , 1942, “Boiler Embrittlement,” Trans. ASME, 66(2), pp. 81–126.

3. Cheever, D. L., and Monroe, R. E., 1970, “Failure of a Welded Medium Carbon Steel Heat Exchanger,” Transactions of ASME, Publication Paper No. 70, PVP-3.

4. Langer, B. F., 1972, “Design Stress Basis for Pressure Vessels,” Pressure Vessels and Piping: Design and Analysis: Vol. 1—Analysis.

5. Daniels, F. H., 1892, “An Interesting Boiler Explosion,” ASME Proceedings, 15, pp. 118–146.

Cited by 7 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Stress Concentration Factor in vessels with circular crosshole: Continuous parameters analysis;International Journal of Pressure Vessels and Piping;2022-10

2. Cross bore geometry configuration effects on stress concentration in high-pressure vessels: a review;International Journal of Mechanical and Materials Engineering;2019-05-28

3. Stress Concentration Factors for Oblique Holes in Pressurized Thick-Walled Cylinders;Journal of Pressure Vessel Technology;2008-03-17

4. Universal SCFs and optimal chamfering in cross-bored cylinders;International Journal of Pressure Vessels and Piping;2007-06

5. Overstrain in flush optimal-chamfered cross-bored cylinders;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2006-01-01

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3