Elastic-plastic analysis of surface crack in round bars under torsion

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

2 Citations (Scopus)

Abstract

An elastic-plastic finite element analysis (FEA) is used to determine the J-integral around the crack front of 3-dimensional semi-elliptical surface crack in a round bar under torsion loading. Crack geometries are based on the experimental observation. The present model is validated using the SIF under bending loading since no suitable SIF for torsion is available. Lack of numerical solution of elastic and plastic stress parameters under torsion are found. The FE J values are normalized by dividing with the estimation J value using a reference stress method. It is found that higher J values are obtained for deep cracks and the maximum J changed from the deepest point along the crack front to the outer point at the free surface when a/D > 0.2. J values can be estimated for all type of crack geometries under consideration with a correction factor, h1.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages651-656
Number of pages6
Volume462-463
DOIs
Publication statusPublished - 2011
Event8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010 - Kuala Lumpur
Duration: 7 Jun 20109 Jun 2010

Publication series

NameKey Engineering Materials
Volume462-463
ISSN (Print)10139826

Other

Other8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010
CityKuala Lumpur
Period7/6/109/6/10

Fingerprint

Torsional stress
Plastics
Cracks
Geometry
Finite element method

Keywords

  • Elastic-plastic
  • Finite element analysis
  • J-integral
  • Surface crack
  • Torsion

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ismail, A. E., Mohd Ihsan, A. K. A., Abdullah, S., Ghazali, M. J., & Daud, R. (2011). Elastic-plastic analysis of surface crack in round bars under torsion. In Key Engineering Materials (Vol. 462-463, pp. 651-656). (Key Engineering Materials; Vol. 462-463). https://doi.org/10.4028/www.scientific.net/KEM.462-463.651

Elastic-plastic analysis of surface crack in round bars under torsion. / Ismail, A. E.; Mohd Ihsan, Ahmad Kamal Ariffin; Abdullah, Shahrum; Ghazali, Mariyam Jameelah; Daud, R.

Key Engineering Materials. Vol. 462-463 2011. p. 651-656 (Key Engineering Materials; Vol. 462-463).

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

Ismail, AE, Mohd Ihsan, AKA, Abdullah, S, Ghazali, MJ & Daud, R 2011, Elastic-plastic analysis of surface crack in round bars under torsion. in Key Engineering Materials. vol. 462-463, Key Engineering Materials, vol. 462-463, pp. 651-656, 8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010, Kuala Lumpur, 7/6/10. https://doi.org/10.4028/www.scientific.net/KEM.462-463.651
Ismail AE, Mohd Ihsan AKA, Abdullah S, Ghazali MJ, Daud R. Elastic-plastic analysis of surface crack in round bars under torsion. In Key Engineering Materials. Vol. 462-463. 2011. p. 651-656. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.462-463.651
Ismail, A. E. ; Mohd Ihsan, Ahmad Kamal Ariffin ; Abdullah, Shahrum ; Ghazali, Mariyam Jameelah ; Daud, R. / Elastic-plastic analysis of surface crack in round bars under torsion. Key Engineering Materials. Vol. 462-463 2011. pp. 651-656 (Key Engineering Materials).
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