Library
local_library Home Repository

Numerical investigation of residual ultimate strength of dented metallic pipes subjected to pure bending

Journal Article (2018)
Author(s)

J. Cai (TU Delft - Transport Engineering and Logistics)

X. Jiang (TU Delft - Transport Engineering and Logistics)

Gabriel Lodewijks (University of New South Wales)

Research Group
Transport Engineering and Logistics
Copyright
© 2018 J. Cai, X. Jiang, G. Lodewijks
DOI related publication
https://doi.org/10.1080/17445302.2018.1430200
More Info
expand_more
Publication Year
2018
Language
English
Copyright
© 2018 J. Cai, X. Jiang, G. Lodewijks
Research Group
Transport Engineering and Logistics
Issue number
5
Volume number
13
Pages (from-to)
519-531
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

A dent is one of the main structural damages that may affect ultimate strength. In this paper, the residual ultimate strength of dented metallic pipes subjected to a bending moment is quantitatively investigated. The numerical model is developed accounting for the variation of the dent length (ld), dent depth (dd), dent width (wd), dent rotation angle (θd) and dent location based on ABAQUS Python. The numerical model is validated by test results from a four-point bending test. Subsequently, a parametric investigation is performed on the effects of wave-type initial imperfection, D/t and dent geometrical parameters. It is found that both ld and dd have a significant effect on the residual ultimate strength of dented metallic pipes, while the effect of wd is slight. Finally, an empirical formula with respect to ld and dd has been proposed for the prediction of bending moment, which can be deployed for practical purposes.