Review of Structural Assessment of Pipe Bends


(*) Corresponding author


Authors' affiliations


DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)

Abstract


This paper presents a review of technical reports available for the structural assessment of pipe bends. Compared with smooth bends, the volume of literature available for joint bents (mitres) is less and least explored in challenging applications, such as low temperature use. The issue that affects a pipe bend is discontinuity stresses and cross-section ovalisation. These lead to delay in the enlargement of non-linear analysis of pipe bends. The constrains of pipe work designers are thoroughly analyzed and discussed, together with the effects of loading and out-of-circularity. The scope for additional work on the effect of combined loading, and end effects, out of- circularity are high. Limit, collapse and disintegrate loads are not yet obtainable across the entire continuum of bends and loading parameters. Creep and optimization is least explored as far as pipe bends are concerned. The presence of unforeseen vibration is a common source of high-cycle weakness collapse in pipe work, resulting vibration-induced fatigue studies.
Copyright © 2013 Praise Worthy Prize - All rights reserved.

Keywords


Ovality; Pipe Bend; Structural Analysis

Full Text:

PDF


References


A.R.Veerappan , S. Shanmugam , Analysis for flexibility in the ovality and thinning limits of pipe bends. ARPN J Eng Appl Sci , Vol.1 n.1, pp.31-41, 2008.

A.Wiley, Design of Piping System (2nd Edition, Inter science Publication, 1956).

A.A. Ostemin, V.L. Dil’man, Calculating wall thickness for major oil product pipelines: Analysis of regulation documents, Chemical and Petroleum Engineering, Vol.38, pp.58-63, 2002.

V. Orynyak, S.A.Radchenko, A Mixed-approach analysis of deformations in pipe bends, Strength of Materials Vol-36, pp.365-376, 2004.

J Wood , A review of literature for the structural assessment of mitred bends, International Journal of Pressure Vessels and Piping, Vol. 85, pp. 275–294, 2008

H.S. So . Single mitred pipe bends under bending and internal pressure loads, MSc thesis, Victoria University of Manchester, March 1971

A.R.C.Markl, Fatigue tests of welding elbows and comparable double-mitre bends, Trans ASME,Vol.69, 1947.

M.P.Bond. A theoretical and experimental investigation of multi mitred pipe bends subjected to various types of loading,PhD thesis, Institute of Science & Technology, Victoria University of Manchester, February 1971.

M.P. Bond ,R. Kitching, Stress and flexibility factors for multi-mitred pipe bends subjected to internal pressure combined with external loadings. J Strain Anal, Vol.7, n.2,1972.

E.C.Rodabaugh , H.H. George, Effect of internal pressure on flexibility and stress intensification factors of curved pipe or welding elbows. Trans ASME , Vol.79, 1957.

P.H.R.Lane, T.T.Rose RT. Experiments on fabricated pipe bends. B.W.R.A, report no. D5, 1960, pp.12-60.

R.Kitching , M.P.Bond, Out-of-circularity effects in a pipe bend subjected to pressure and bending load, J Strain Anal , Vol.7, pp.4 1972.

S.Babaii Kochekseraii, Mitred pipe bends subject to internal pressure and in-plane bending moment,PhD thesis, University of Manchester, 1994.

M.S.Shalaby, M.Y.A.Younan, Limit loads for pipe elbows with internal pressure under in-plane closing moments. J Press Vessel Technol, Vol.120, pp.35-42 1998.

J.Chattopadhyay, D.K. Natahani, B.K. Dutta BK, H.S.Kushwaha, Closed-form collapse moment quations of elbows under internal pressure and in-plane bending moment. J Pressure Vessel Technol, Vol.6, pp.431-436, 2000.

A.Robertson , H. Li, D.Mackenzie, Plastic collapse of pipe bends under combined internal pressure and in-plane bending. International Journal of Press Vessel Piping , Vol.82, pp.407-416,2005.

Y.J.Kim, C.S.Oh. Closed-form plastic collapse loads of pipe bends under combined pressure and in-plane bending. Engng Fract Mech, Vol.73, pp.1437-1754, 2006.

K.G.Suneel , B.Vivek, K.K.Vaze, A.K.Ghosh, H.S.Kushwaha, General limit load and B2 stress index equation for pipe bends under in-plane bending. Trans, SMiRT, Vol.19,2007.

A.M.Gresnigt, Elastic and plastic design of mitred bends. In: Proceedings of the 12th international offshore and polar engineering conference, Kitakyushu, Japan, May2002, pp. 26–31.

Yun-Jae Kim, Effect of attached straight pipes on finite element limit analysis for pipe bends, International Journal of Pressure Vessels and Piping, Vol-84, pp.177-184, 2007.

Yun-Jae Kim, Effect of bend angle on plastic loads of pipe bends under internal pressure and in-plane bending, International Journal of Mechanical Sciences, Vol-49, pp.1413-1424, 2007.

E.C.Rodabaugh, Review of data on mitre joints in piping to establish maximum angularity for fabrication of girth butt welds. WRC Bulletin, Vol. 208, August 1975.

Donlad Mackenzie, Plastic collapse of pipe bends under combined internal pressure and in-plane bending, International Journal of Pressure Vessels and Piping, Vol-82, pp.407-416,2004.

H.S.So, Single mitred pipe bends under bending and internal pressure loads. MSc thesis, Victoria University of Manchester, March 1971.

D.R.Hose, Glass reinforced plastic pipework of mixed wall construction, PhD thesis, University of Manchester, January 1988.

Y.J.Kim, N.H.Kim NH, C.Y.Oh , C.S. Oh, A method to estimate plastic loads for elbows with non-uniform thicknesses. Fatigue Fract Engng Mater Struct, Vol.31, pp.822-837, 2008.

A.Robertson , H.Li , D.Mackenzie . Plastic collapse of pipe bends under combined internal pressure and in-plane bending. International J Press Vessel Piping, Vol.82, pp.407-416 2005.

T. Christo Michael, A.R. Veerappan, S. Shanmugam. Effect of ovality and variable wall thickness on collapse loads in pipe bends subjected to in-plane bending closing moment, Engineering Fracture Mechanics, Vol. 79, pp.138-148, 2012.

S.E.Bolt , W.L. Greenstreet , Experimental determination of plastic collapse loads for pipe elbows. ASME, Paper 71-PVP-37, 1971.

J.E.Griffiths, The effect of cracks on the limit load of pipe bends under in-plane bending experimental study. Int J Mech Sci. Vol.21, pp.119-130, 1978.

E.C.Rodabaugh, S.E. Moore . Evaluation of the plastic characteristics of piping products in relations to ASME Code Criteria. NUREG Report, CR-0261, ORNL. ORNL/NUREG-24; 1978.

P.Hilsenkopf , B.Boneh, P.Sollogoub . Experimental study of behavior and functional capability of ferric steel elbows and austenitic stainless steel thin walled elbows. Int J Press Vessels Pip, Vol.33, pp.111-128, 1998.

T.Hassan, M.Modlin , V.C. Matzen, Monotonic in-plane tests on 2-inch, schedule 10 elbows. In: Data developed at the center for nuclear power plant structures, equipment and piping. NC: North Carolina State University; 2000.

K.Yahiaoui , D.G.Moffat, D.N.Moreton DN, Piping elbows with cracks. Part 2eGlobal finite element and experimental plastic loads under opening bending. J Strain Anal, Vol.35, pp.47-57, 2000.

K.Wilkins , Y.Tan , V.C.Matzen, Monotonic out-of plane tests on 2-inch, schedule 10 elbows. Data developed at the Center for Nuclear Power Plant Structures, Equipment and Piping. NC: North Carolina State University; 2001.

N.W.Murray, Bursting tests on welded mitred bends for gas pipelines. Aust Weld Res, Vol.7, pp.1-26, 1979.

T.Chirsto Michael, A.R.Veerappan, S.Shanmugam, Effect of ovality and variable wall thickness on collapse loads in pipe bends subjected to in-plane closing moment. Engineering Fracture Mechanics, Vol.79, pp.138-148, 2012.

S.Sellakumar,Stress Analysis of Pipe Bends Due to Ovality, M.E., thesis, Anna University Covai, May 2010.

Jae-Jun Han , Kuk-Hee Lee , Nak-Hyun Kim , Yun-Jae Kim , Dong Wook Jerng , Peter J. Budden, Comparison of existing plastic collapse load solutions with experimental data for 90_ elbows, International Journal of Pressure Vessels and Piping, Vol.89, pp.19-27,2012

Jin Weon Kima,, Sung Ho Leeb, Chi Yong Parkb, Experimental evaluation of the effect of local wall thinning on the failure pressure of elbows, Nuclear Engineering and Design, Vol-239, pp. 2737–2746. October 2009.

Masataka Tsuji, Toshiyuki Meshii, Influence of circumferential flaw length on internal burst pressure of a wall-thinned pipe, Nuclear Engineering and Design, Vol-255, pp. 59– 67, 2013.

Duan Qingquan, Zhang Hong, Yan Feng, Deng Changyi, Hydrostatic burst test 0F X80 grade steel pipe, Journal of Loss Prevention in the Process Industries, Vol-22, pp.897-900,September 2009.

R. Neilson, J. Wood, R. Hamilton, H. Li, A comparison of plastic collapse and limit loads for single mitred pipe bends under in-plane bending, International Journal of Pressure Vessels and Piping, Vol-87, pp. 550-558, August 2010.

Xian-Kui Zhu*, Brian N. Leis, Evaluation of burst pressure prediction models for line pipes, International Journal of Pressure Vessels and Piping, Vol-89, pp.85-97, 2012.

Zhu XK, Leis BN. Deterministic and probabilistic of pipeline burst failure. Proceedings of ASME Pressure Vessels and Piping Conference, San Antonio, Texas, USA, pp. 22-26, July2007, . PVP2007-26272.

Law M, Bowie G. Prediction of failure strain and burst pressure in high yield to tensile strength ratio linepipe. International Journal of Pressure Vessels Piping, Vol-84, pp.487-92, 2007.

Law M, Bowie G. Failure strain in high yield-to-tensile ratio linepipes. Journal of Pipeline Integrity,Vol-5,pp.25-36, 2006.

Zhu XK, Leis BN. Accurate prediction of burst pressure for linepipes. Journal of Pipeline Integrity, Vol-4,pp.195-206, 2004.

Brabin TA, Christopher T, Rao BN. Bursting pressure of mild steel cylindrical vessels. International Journal of Pressure Vessels and Piping, Vol-88, pp.11-22, 2011.

WangL, Zhang Y. Plastic collapse analysis of thin-walled pipes based on uniform yield criterion. International Journal Mechanical Sciences, Vol-53, pp.348-54, 2011.


Refbacks

  • There are currently no refbacks.


Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize