Experimental investigation of residual ultimate strength of damaged metallic pipelines

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

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

4 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationStructures, Safety and Reliability
Subtitle of host publicationProceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
Place of PublicationNew York, NY, USA
PublisherASME
PagesV03BT02A048
Number of pages15
ISBN (Electronic)978-0-7918-5766-3
DOIs
Publication statusPublished - 2017
EventOMAE 2017: ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Trondheim, Norway
Duration: 25 Jun 201730 Jun 2017

Publication series

NameASME Conference Proceedings
Volume2017/3B

Conference

ConferenceOMAE 2017: ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
CountryNorway
CityTrondheim
Period25/06/1730/06/17

Keywords

  • Bending moment
  • Crack
  • Dent
  • Experiment
  • Metal loss
  • Metallic pipeline
  • Residual ultimate strength

Fingerprint

Dive into the research topics of 'Experimental investigation of residual ultimate strength of damaged metallic pipelines'. Together they form a unique fingerprint.

Cite this