Structural Engineering and Mechanics

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Fracture analysis and remaining life prediction of aluminium alloy 2014A plate panels with concentric stiffeners under fatigue loading

  • Murthy, A. Ramachandra (CSIR-Structural Engineering Research Centre) ;
  • Mathew, Rakhi Sara (Saintgits College of Engineering) ;
  • Palani, G.S. (CSIR-Structural Engineering Research Centre) ;
  • Gopinath, Smitha (CSIR-Structural Engineering Research Centre) ;
  • Iyer, Nagesh R. (CSIR-Structural Engineering Research Centre)
  • Received : 2014.06.12
  • Accepted : 2014.10.04
  • Published : 2015.02.25
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Abstract

Fracture analysis and remaining life prediction has been carried out for aluminium alloy (Al 2014A) plate panels with concentric stiffener by varying sizes and positions under fatigue loading. Tension coupon tests and compact tension tests on 2014A have been carried out to evaluate mechanical properties and crack growth constants. Domain integral technique has been used to compute the Stress intensity factor (SIF) for various cases. Generalized empirical expressions for SIF have been derived for various positions of stiffener and size. From the study, it can be concluded that the remaining life for stiffened panel for particular size and position can be estimated by knowing the remaining life of corresponding unstiffened panel.

Keywords

References

  1. ASTM B 557M-10, Standard test methods for tension testing of wrought and cast aluminium-& magnesium-alloy products.
  2. ASTM B 557M-10, Standard Test Methods for Tension Testing of Wrought and Cast Aluminum-and Magnesium-Alloy Products (Metric), ASTM International, USA.
  3. ASTM E 647-08, Standard test method for measurement of fatigue crack growth rates.
  4. ASTM E 647-11, Standard Test Method for Measurement of Fatigue Crack Growth Rates, ASTM International, USA.
  5. Chu, H.P., Hauser, J.A. and Sikoram, J.P. (1982), "Fatigue crack growth in stiffened panels under pressure loading-design of fatigue and fracture resistant structures", ASTM STP, 761, 345-72.
  6. Dexter, R.J. and Pilarski, P.J. (2002), "Crack propagation in welded stiffened panels", J. Constr. Steel Res., 58, 1081-102. https://doi.org/10.1016/S0143-974X(01)00094-3
  7. Ghassem, M.M. and Rich, T.P. (1933), "The fracture diagram: a new design tool for stiffened panels", AIAA J., 21.
  8. Hosseini-Toudeshky, H., Ghaffari, M.A. and Mohammadi, B. (2013), "Mixed-mode crack propagation of stiffened curved panels repaired by composite patch under combined tension and shear cyclic loading", Aerosp. Sci. Technol., 28(1), 344-363. https://doi.org/10.1016/j.ast.2012.12.001
  9. Liu, G., Wang, S. and Yang, X. (2012), "A Simple numerical simulation of crack growth rate", Procedia Eng., 31, 557-562. https://doi.org/10.1016/j.proeng.2012.01.1067
  10. Mahmoud, H.N. and Dexter, R.J. (2005), "Propagation rate of large cracks in stiffened panels under tension loading", Marin. Struct., 18(3), 265-288. https://doi.org/10.1016/j.marstruc.2005.09.001
  11. Murakami, Y. (1988), Stress intensity factors handbook, Pergamon Press, Oxford.
  12. Murthy, R.A., Palani, G.S. and Iyer, N.R. (2007), "Remaining life prediction of cracked stiffened panels under constant and variable amplitude loading", Int. J. Fatig., 29(6), 1125-1139. https://doi.org/10.1016/j.ijfatigue.2006.09.016
  13. Papadakis, V.G. (2013), "Service life prediction of a reinforced concrete bridge exposed to chloride induced deterioration", Adv. Concrete Construct., 1(3), 201-213. https://doi.org/10.12989/acc2013.1.3.201
  14. Poe, Jr. C.C. (1971), "Fatigue propagation in stiffened panels", ASTM STP, 486, 79-98.
  15. Rooke, D.P. and Cartwright, D.J. (1976), Compendium of stress intensity factors, Her Majesty's Stationary Office, London.
  16. Saves, C.S.T., Germes Davy, A. and Barrau, J.J. (2001), "Prediction of the longitudinal crack behaviour of stiffened curved panels", Int. J. Fatig., 23, 147-58. https://doi.org/10.1016/S0142-1123(00)00066-9
  17. Shih, C.F., Moran, B. and Nakamura, T. (1986), "Energy release rate along a three-dimensional crack front in a thermally stressed body", Int. J. Fract., 30, 79-102.
  18. Taheri, F., Trask, D. and Pegg, N. (2003), "Experimental and analytical investigation of fatigue characteristics of 350WT steel under constant and variable amplitude loadings", Marin. Struct., 16, 69-91. https://doi.org/10.1016/S0951-8339(02)00004-7
  19. Wen, P.H., Aliabadi, M.H. and Young, A. (2000), "Stiffened cracked plates analysis by dual boundary element method", Int. J. Fract., 106, 245-258. https://doi.org/10.1023/A:1026583813252
  20. Wen, P.H., Aliabadi, M.H. and Young, A. (2003), "Fracture mechanics analysis of curved stiffened panels using BEM", Int. J.Solids Struct., 40(1), 219-236 https://doi.org/10.1016/S0020-7683(02)00498-5

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