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Prediction of cannon barrel life

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: Calculation of the fatigue life based on attaining a critical defect size for fast fracture is very important. Cannon is one of the most used parts in military industries and analysis of this component is under consideration. Therefore, the prediction of its longevity to say, the number of cannon ball that can be fired till it is broken down should be under consideration. Design/methodology/approach: Obviously the number of the cracks and their sizes dictate the life of the cannon's barrel. Since the life of this component directly depends on the inner micro-cracks after numerous firing, the study of these cracks is very important. From this point of view, the stress analysis on crack tip is carried out via ANSYS software in this research. This research was to demonstrate the large changes in total fatigue life caused by the initial crack number and the residual stress at the cannon bore, the fatigue with several cracks is analyzed in the barrel according to the critical explosion pressure.The research is carried out with one, two, three, four and twenty five cracks. Findings: The methods of testing and analysis are believed to be generally applicable to problems in fatigue life evaluation. This analysis shows that the stress intensity on the tip of the crack is a function of its length and increases with the number of these cracks. Since the cannon barrel life is a convert function of the stress intensity of the cracks, multi-cracks condition passes the most fatigue cycling. The shape function of the cracks is also decreased with the number of the cracks. Originality/value: Characterization of the cracking at a cannon bore is a difficult problem. This analysis shows that the critical cycle life of the cannon barrel occurs at two numbers of the cracks.
Słowa kluczowe
Rocznik
Strony
11--18
Opis fizyczny
Bibliogr. 19 poz., il., tab., wykr.
Twórcy
  • School of Mechanical Engineering, Faculty of Engineering, University of Tehran, P.O. Box: 11365-4563 Tehran, Iran, mahdavin@ut.ac.ir
Bibliografia
  • [1] D. K. Wiatkowski, Determination of crack resistance on the basis of the J integral for talc filled PP and PA composites, Proceedings of the 13th International Scientific Conference „Achievements in Mechanical and Materials Engineering” AMME'2005, Gliwice-Wisła, 2005, 391-394.
  • [2] Y. Xiangqiao, A special crack-tip displacement discontinuity element, Journal of Mechanic Research Communications 31 (2004) 651-659.
  • [3] J. Wang, X. Zhou, Near crack line elastic-plastic analysis for a infinite plate loaded by two pairs of point tensile forces, Journal of Mechanic Research Communications 31 (2004) 415-420.
  • [4] S. Z. Qamar, T. Pervez, R. A. Siddiqui, A. K. Sheikh, A. F. M. Arif, Sensivity analysis in life prediction of extrusion die, Journal of Achievements in Materials and Manufacturing Engineering 25/1 (2007) 49-54.
  • [5] Z. Suo, C. M. Kuo, D. M. Barnett, J. R. Willis, Interface crack-tip generalized stress field and stress intensity factors in transversely isotropic piezoelectric bimaterials, Journal Mechanics Physics of Solids 40 (1992) 735-740.
  • [6] J. Wang, X. Zhou, Near crack line elastic-plastic analysis for a infinite plate loaded by two pairs of point tensile forces, Journal of Mechanic Research Communications 31 (2004) 415-420.
  • [7] T. Ozben, A. Yardimeden, O. Cakir, Stress analysis of shrink-fitted pin-pin hole connections via Finite Element Method, Journal of Achievements in Materials and Manufacturing Engineering 25/1 (2007) 45-48.
  • [8] Y. Z. Chen, New Fredholm integral equation for multiple crack problem in plane elasticity and antiplane elasticity, International Journal of Fracture 64 (1993) 63-77.
  • [9] Z. G. Zhou, B. Wang, Y. G. Sun, Relationship of crack fabric tensors of different order, Proceedings of the 7th WSEAS International Conference „Simulation, Modelling and Optimization”, Beiging, 2007, 210-218.
  • [10] Q. Yang, X. Chen, L. G. Than, Investigation of the behaviour of a Griffith crack at the interface of a layer bonded to a half plane using the Schmidt method for opening crack mode, International Journal of Production Research 41 (2003) 4505-4517.
  • [11] J. R. Jain, T. K. Kundra, Model based online diagnosis of unbalance and traverse fatigue crack in rotor systems, Journal of Mechanism and Machine Theory 39 (2004) 1307-1315.
  • [12] M. Staszewski, Z. M. Rdzawski, A. Wrona, Residual stresses in the strips from copper-based alloys, Journal of Achievements in Materials and Manufacturing Engineering 25/2 (2007) 35-38.
  • [13] M. Czechowski, Fatigue life of friction stir welded Al-Mg alloys, Proceedings of the 13th International Scientific Conference „Achievements in Mechanical and Materials Engineering” AMME'2005,Gliwice-Wisła, 2005, 83-86.
  • [14] S. Chen, R. Krause, R. G. Pettit, L. Banks-Sills, A. R. Ingraffea, Numerical Assessment of T-stress Computation using a P-version Finite Element Method, International Journal of Fracture 107 (2001) 177-199.
  • [15] S. B. Leslie, R. Eliasi, Fatigue life analysis of a cannon barrel, Engineering Failure Analysis 6/6 (1999) 371-385.
  • [16] V. Boniface, L. Banks-Sills, Stress Intensity Factors for Finite Interface Cracks between a Special Pair of Transversely Isotropic Materials, Journal of Applied Mechanics 69 (2002) 230-239.
  • [17] L. B. Sills, P. A. Wawrzynek, B. Carter, A. R. Ingraffea, I. Hershkovitz, Methods for Calculating Stress Intensity Factors in Anisotropic Materials: Part II-Arbitrary Geometry, Engineering Fracture Mechanics 74/8 (2007) 1293-1307.
  • [18] L. B. Sills, V. Boniface, R. Eliasi, Development of a Methodology for Determination of Interface Fracture Toughness of Laminate Composites-the 0o/90o Pair, International Journal of Solids and Structures 42/2 (2005) 663-680.
  • [19] V. A. Avakov, Fatigue Reliability Functions in Semilo-garhmic Coordinates: Reliability, Stress Analysis and Failure Prevention, ASME (1991) 55-60.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAN-0003-0024
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