Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending

Sumesh, S. / Veerappan, AR. / Shanmugam, S.

Abstract A comparative evaluation of limit moments based on small displacement and collapse moments based on large displacement for structurally distorted throughwall circumferentially cracked pipe bends, under in-plane closing bending were carried out using finite element analysis. The moments were obtained employing the twice-elastic-slope method. Results indicate the influence of thinning is minimal whereas the effects of ovality on both limit and collapse moments for the cases considered are significant and therefore thinning need not be considered in the analysis. Moreover determination of collapse moments is preferred when ovality is incorporated in the analysis of pipe bends with the geometries considered.

Highlights • Plastic loads were evaluated in the analysis of cracked 90° pipe bends. • Effects of structural distortions were quantified and compared. • Assessment of collapse moments is preferred over evaluation of limit moments. • Ovality has pronounced effect on limit loads for cracked pipe bends considered.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending

Sumesh, S. / Veerappan, AR. / Shanmugam, S.

Abstract A comparative evaluation of limit moments based on small displacement and collapse moments based on large displacement for structurally distorted throughwall circumferentially cracked pipe bends, under in-plane closing bending were carried out using finite element analysis. The moments were obtained employing the twice-elastic-slope method. Results indicate the influence of thinning is minimal whereas the effects of ovality on both limit and collapse moments for the cases considered are significant and therefore thinning need not be considered in the analysis. Moreover determination of collapse moments is preferred when ovality is incorporated in the analysis of pipe bends with the geometries considered.

Highlights • Plastic loads were evaluated in the analysis of cracked 90° pipe bends. • Effects of structural distortions were quantified and compared. • Assessment of collapse moments is preferred over evaluation of limit moments. • Ovality has pronounced effect on limit loads for cracked pipe bends considered.

Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending

Sumesh, S. / Veerappan, AR. / Shanmugam, S.

Abstract A comparative evaluation of limit moments based on small displacement and collapse moments based on large displacement for structurally distorted throughwall circumferentially cracked pipe bends, under in-plane closing bending were carried out using finite element analysis. The moments were obtained employing the twice-elastic-slope method. Results indicate the influence of thinning is minimal whereas the effects of ovality on both limit and collapse moments for the cases considered are significant and therefore thinning need not be considered in the analysis. Moreover determination of collapse moments is preferred when ovality is incorporated in the analysis of pipe bends with the geometries considered.

Highlights • Plastic loads were evaluated in the analysis of cracked 90° pipe bends. • Effects of structural distortions were quantified and compared. • Assessment of collapse moments is preferred over evaluation of limit moments. • Ovality has pronounced effect on limit loads for cracked pipe bends considered.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending

Contributors:

Sumesh, S. (author) / Veerappan, AR. (author) / Shanmugam, S. (author)

Published in:

Thin-Walled Structures ; 104 ; 144-151

Publication date:

2016-03-07

Size:

8 pages

ISSN:

DOI:

https://doi.org/10.1016/j.tws.2016.03.009

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Circumferential throughwall crack , Limit moment , Ovality , Thinning , Pipe bend

Similar titles

Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending

Sumesh, S. / Veerappan, AR. / Shanmugam, S. | Elsevier | 2016

Assessment of plastic loads of critical throughwall circumferentially cracked pipe bends with structural distortions under in-plane bending

Sumesh, S | Online Contents | 2016

Finite element plastic loads for circumferential cracked pipe bends under in-plane bending

Kim, Y. J. / Kim, Y. I. / Song, T. K. | British Library Online Contents | 2007

Elastic–plastic J and COD estimation schemes for throughwall circumferentially cracked elbow under in-plane closing moment

Chattopadhyay, J. / Tomar, A. K. / Dutta, B. K. et al. | British Library Online Contents | 2005

Limit Loads for Circumferential Cracked Pipe Bends under In-Plane Bending

Kim, Y. J. / Oh, C. S. / Park, B. K. et al. | British Library Online Contents | 2006