Experimental investigation of residual ultimate strength of damaged metallic pipelines

Jie Cai, Xiaoli Jiang, Gabriel Lodewijks, Zhiyong Pei, Ling Zhu

Publikation: Kapitel i bog/rapport/konference-proceedingKonferencebidrag i proceedingsForskningpeer review

Abstract

The ultimate strength of metallic pipelines will be inevitably affected when they have suffered from structural damage. The present experiments aim to investigate the residual ultimate bending strength of metallic pipes with structural damage based on large-scale pipe specimens. Artificial damage such as dent, metal loss, crack and combinations thereof is introduced on the pipe surface in advance. The entire test project consists of 34 seamless pipes with a relative low Diameter-to-thickness (D=t) ratio around 21.3, among which four intact specimens and thirty damaged specimens have been carried out for mutual comparison. Extensive measurements on structural damage and pipe geometries including wall thickness and outer diameter are performed. The material properties are measured by tensile tests with specimens from both pipe longitudinal and hoop direction. The four-point bending tests are performed to investigate the structural behaviors of metallic pipes. The bending strength associating with failure mode of each specimen is documented extensively, and the bending moment-curvature curves are presented and discussed. The fundamental research of experiments on damaged pipes in the present paper will be deployed for the following numerical and analytical research in the near future.

OriginalsprogEngelsk
TitelStructures, Safety and Reliability
ForlagAmerican Society of Mechanical Engineers
Publikationsdato2017
ISBN (Elektronisk)9780791857663
DOI
StatusUdgivet - 2017
Udgivet eksterntJa
BegivenhedASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Norge
Varighed: 25. jun. 201730. jun. 2017

Konference

KonferenceASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
Land/OmrådeNorge
ByTrondheim
Periode25/06/201730/06/2017
SponsorOcean, Offshore and Arctic Engineering Division
NavnProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Vol/bind3B-2017

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