Stress intensity factors for multiple cracks in thick-walled cylinder

  • Authors

    • Krunal G. Girase
    • Navneet K. Patil
    • Dinesh Shinde
    • Kanak Kalita Dept. of Aerospace Engineering & Applied MechanicsIIEST Shibpur(Erstwhile Bengal engineering & Science University)Howrah, West Bengal, India 711103
    2015-06-19
    https://doi.org/10.14419/ijsw.v3i2.4719
  • Ansys, Crack, FEM, Pressure Vessel, SIF.
  • The stress intensity factor (SIF) is the linear elastic fracture mechanics parameter that relates remote load, crack size and structural geometry. It predicts very accurately the stress state. In this work, cylinders with multiple cracks are considered. The following parameters are varied during the analysis of the cylinders: the number of cracks, (the variation in number of cracks ultimately led to a variation in the inter-crack spacing), the crack length to cylinder thickness ratio (a/t), the diameter ratio of the cylinders. Very good agreement between the finite element stresses and the theoretical stresses is seen.

  • References

    1. [1] CODE, PRESSURE VESSEL. "SECTION VIII, DIVISION." (2010).

      [2] Directive, Pressure Equipment. "97/23/EC." Pressure Equipment Directive (PED) (1997).

      [3] Asada, Yasuhide. "Japanese Activities Concerning Nuclear Codes and Standards—Part II." Journal of pressure vessel technology 128.1 (2006): 64-70. http://dx.doi.org/10.1115/1.2138063.

      [4] Canadian standards association, Boiler, pressure vessel, and pressure piping code. CSA standards, 2009.

      [5] Committee ME/1, Un_red pressure vessels Advanced design and construction (Supplement to AS 12101989). Standards Association of Australia, 1990.

      [6] Germanischer Lloyd, Rules and Guidelines. Germanischer Lloyd, 2009.

      [7] Det Norske Veritas, Oil and Gas Processing systems-O_shore Standard DNV-OS-E201,Det Norske Veritas, 2008.

      [8] Stoomwezen, Rules for pressure vessels. Sdu Publishers, 1997.

      [9] Hellan, KÃ¥re. Introduction to fracture mechanics. McGraw-Hill, 1985.

      [10] Adldoost, H., A. Zabihollah, and S. J. Fattahi. "Measurement of wall loss in pressure vessels using fbg sensors." (2011): 1-8.

      [11] Chandwani, Ramesh, Miles Wiehahn, and Chris Timbrell. "3D Fracture mechanics in ANSYS." UK ANSYS conference, Warwickshire, UK. 2004.

      [12] www.ecolo.org/archives/archives-nuc-en

      [13] Perl, M. "Stress intensity factor approximate formulae for uniform crack arrays in pressurized or autofrettaged cylinders." Engineering fracture mechanics 43.5 (1992): 725-732. http://dx.doi.org/10.1016/0013-7944(92)90003-W.

      [14] Goldthorpe, B. D. "Fatigue and fracture of thick walled cylinders and gun barrels." Case Studies in Fracture Mechanics (1977): 77-5.

      [15] Clark, G., and M. E. Morton. "Multiple cracking in thick-walled pressure vessels." International Journal of Fracture 15.1 (1979): R17-R20. http://dx.doi.org/10.1007/BF00115916.

  • Downloads

  • How to Cite

    G. Girase, K., Patil, N. K., Shinde, D., & Kalita, K. (2015). Stress intensity factors for multiple cracks in thick-walled cylinder. International Journal of Scientific World, 3(2), 207-215. https://doi.org/10.14419/ijsw.v3i2.4719