Elastic stresses for 90 degree elbows under in-plane bending

Using finite element analysis, this paper extends elastic stress solutions for 90 degree pipe elbows under in-plane bending, given in Marie et al. (2007) , to cases of mean pipe radius-to-thickness ratio up to 50. It is found that for 90 degree elbows an in-plane bending moment produces not only an...

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Bibliographic Details
Published in:International journal of mechanical sciences 2011-09, Vol.53 (9), p.762-776
Main Authors: An, Joong-Hyok, Hong, Seok-Pyo, Kim, Yun-Jae, Budden, Peter J
Format: Article
Language:English
Subjects:
Axial stress
Bending
Bending moments
Elbows
Mathematical analysis
Pipe
Position (location)
Stresses
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Summary:Using finite element analysis, this paper extends elastic stress solutions for 90 degree pipe elbows under in-plane bending, given in Marie et al. (2007) , to cases of mean pipe radius-to-thickness ratio up to 50. It is found that for 90 degree elbows an in-plane bending moment produces not only an axial membrane stress component but also axial and hoop bending stress components. Furthermore, the magnitudes of these stress components depend strongly on the mean radius-to-thickness ratio, the circumferential location and the longitudinal location. Maximum stresses tend to occur in the centre of the elbow at or near the crown.
ISSN:0020-7403
DOI:10.1016/j.ijmecsci.2011.06.008