International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Computational Analysis of Stress Intensity Factor for a Quarter Circular Edge Crack under Mode-I loading

Author Affiliations

  • 1Department of Mechanical Engineering, R V College of Engineering, Bangalore, INDIA

Res. J. Engineering Sci., Volume 2, Issue (7), Pages 38-427, July,26 (2013)

Abstract

The paper aims at evaluating the stress intensity factor for a mode I type crack propagation for a square bar specimen with a quarter circular edge crack which is taken as a case study. Finite element analysis is used to determine the stress intensity factor and the simulation is performed on specimens with various crack-length to specimen-width (a/W) ratios. The software used for the analysis is APDL 12.1[ANSYS]. The reliability of the software has been proven using SENB specimen as the benchmark problem. The stress intensity factors are presented and observed along the crack front for different a/W ratios. The stress intensity factor is found to have the maximum value at the edges along the crack front and minimum at the midplane for different a/W ratios.

References

  1. Chaitanya G., Srinivas K.and Kumar J. Suresh, Effect of Fiber Orientation on Mode I Crack Opening Stress Intensity of an Orthotropic Laminate, Research Journal of Engineering Sciences, 2(5), 30-34 (2013)
  2. Prashanth Kumar, Elements of Fracture Mechanics, Tata McGraw Hill Publications, (2009)
  3. Alan Liu, Mechanics and Mechanisms of Fracture-An Introduction, ASM International Publications, (2005)
  4. Sanford R.J., Fundamentals of Fracture Mechanics, Prentice-Hall Publications, (2003)
  5. Purkar T. Sanjay and Pathak Sunil, Aspect of Finite Element Analysis Methods for Prediction of Fatigue Crack Growth Rate, Research Journal of Recent Sciences, 1(2), 85-91 (2012)
  6. Shariati Mahmoud, Fereidoon Abdolhosein and Akbarpour Amin, Investigation on Buckling Behavior of Tubular Shells with Circular Cutout, Subjected to Combined Loading, Research Journal of Recent Sciences, 1(7), 68-76 (2012)
  7. Kumar Krishan and Aggarwal M.L., A Finite Element Approach for Analysis of a Multi Leaf Spring using CAE Tools, Research Journal of Recent Sciences, 1(2), 92-96 (2012)
  8. Kirthan L.J., Refined Finite Element Models to determine Mixed Mode Stress Intensity Factors for Surface Crack Problems, Proceedings on International Conference on Advances in Mechanical and Building Sciences in the 3rdmillennium, (2009)
  9. Kirthan L.J., Calibration of test methods for Mode I,II and III fracture toughness, Journal of Aerospace Science and Technology, 64, 33-42 (2012)
  10. Purkar T. Sanjay and Pathak Sunil, Analysis of Crack Initiation in Fretting Fatigue Specimen, Research Journal of Engineering Sciences, 1(1), 26-34 (2012)