Limit Loads for Pipe Elbows With Internal Pressure Under In-Plane Closing Bending Moments-Reference-Cited by-同舟云学术

Limit Loads for Pipe Elbows With Internal Pressure Under In-Plane Closing Bending Moments

Published:1998-02-01 Issue:1 Volume:120 Page:35-42
ISSN:0094-9930
Container-title:Journal of Pressure Vessel Technology
language:en
Short-container-title:

Author:

Shalaby M. A.¹,Younan M. Y. A.²

Affiliation:

1. ECG Engineering Consultants Group, Piping Department, Cairo, Egypt

2. The American University in Cairo, Engineering Department, P.O. Box 2511, Cairo, Egypt 11511

Abstract

The purpose of this study is to determine limit loads for pipe elbows subjected to in-plane bending moments that tend to close the elbow (i.e., decrease its radius of curvature), and the influence of internal pressure on the value of the limit load. Load-deflection curves were obtained, and from these curves plastic collapse or instability loads at various values of internal pressure were determined. This was done for different pipe bend factors (h = Rt/r2) using the nonlinear finite element analysis code (ABAQUS) with its special elbow element. The limit load was found to increase and then decrease with increasing pressure for all the elbow geometries studied.

Publisher

ASME International

Subject

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

Link

http://asmedigitalcollection.asme.org/pressurevesseltech/article-pdf/120/1/35/5740326/35_1.pdf

Reference22 articles.

1. ABAQUS, 1995, ABAQUS/Standard Version 5.5, User’s Manual Vol. I, Example Problems Manual Vol. I, and Theory Manual, Hibbitt, Carlsson & Sorensen, Inc., RI.

2. Bolt, S. E., and Greenstreet, W. L., 1972, “Experimental Determination of Plastic Collapse Loads for Pipe Elbows,” ASME JOURNAL OF PRESSURE VESSEL TECHNOLOGY Paper No. 71-PVP-37, pp. 1–12.

3. Boyle, J. T., and Spence, J., 1977, “The Nonlinear Analysis of Pressurized Pipe Bends,” Proceedings, 3rd International Conference on Pressure Vessel Technology, Tokyo, Japan, pp. 121–131.

4. Brashel, R. A., et al., 1983, “Calculation of the Load Carrying Capacity of Pipe Elbows With the Help of the Method of Approximation,” Proceedings, 7th SMiRT Conference, Chicago, IL, G/F5/8, pp. 373–380.

5. Brouard, d., et al., 1981, “In-Plane and-Out-of-Plane Bending Tests on Carbon Steel Pipe Bends,” Proceedings, 6th SMiRT Conference, Paris, France, F3/2.

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