Numerical study on fracture behavior of complex cracked pipes

Ho Wan Ryu, Jae Jun Han, Yun Jae Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study provides the application of damage model to complex cracked pipes which can be found especially in weld overlay region. From the perspective of structural integrity, enough basic and large-scale tests are required to accurately evaluate the components containing a crack-like defect. In this case, damage model using finite element (FE) method can be effectively used for the assessment of full-scale cracked pipes with minimum basic experiments data. The proposed method in this research is based on the stress-modified fracture strain damage model with stress reduction technique. In this paper, Battelle full-scale complex cracked pipe tests are simulated by the proposed damage model with reasonable procedure. FE simulation is conducted for basic experiments to determine failure criteria with calibrations. Then, crack initiation and maximum loads are predicted to characterize the fracture behavior of full-scale complex cracked pipes. Damage model is applied to both of carbon and stainless steel materials and verification with comparing to test data is conducted.

Original languageEnglish
Title of host publicationMaterials and Fabrication
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791856994, 9780791856994, 9780791856994, 9780791856994
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes
EventASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States
Duration: 2015 Jul 192015 Jul 23

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume6A-2015
ISSN (Print)0277-027X

Conference

ConferenceASME 2015 Pressure Vessels and Piping Conference, PVP 2015
CountryUnited States
CityBoston
Period15/7/1915/7/23

Fingerprint

Pipe
Structural integrity
Crack initiation
Carbon steel
Welds
Stainless steel
Experiments
Calibration
Cracks
Finite element method
Defects

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Ryu, H. W., Han, J. J., & Kim, Y. J. (2015). Numerical study on fracture behavior of complex cracked pipes. In Materials and Fabrication (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6A-2015). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP201545583

Numerical study on fracture behavior of complex cracked pipes. / Ryu, Ho Wan; Han, Jae Jun; Kim, Yun Jae.

Materials and Fabrication. American Society of Mechanical Engineers (ASME), 2015. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6A-2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ryu, HW, Han, JJ & Kim, YJ 2015, Numerical study on fracture behavior of complex cracked pipes. in Materials and Fabrication. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 6A-2015, American Society of Mechanical Engineers (ASME), ASME 2015 Pressure Vessels and Piping Conference, PVP 2015, Boston, United States, 15/7/19. https://doi.org/10.1115/PVP201545583
Ryu HW, Han JJ, Kim YJ. Numerical study on fracture behavior of complex cracked pipes. In Materials and Fabrication. American Society of Mechanical Engineers (ASME). 2015. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP). https://doi.org/10.1115/PVP201545583
Ryu, Ho Wan ; Han, Jae Jun ; Kim, Yun Jae. / Numerical study on fracture behavior of complex cracked pipes. Materials and Fabrication. American Society of Mechanical Engineers (ASME), 2015. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP).
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