Abstract
This paper deals with the tension and bending of finite thickness plates with a semi-elliptical surface crack. The analysis is performed by means of a modified body force method, in which the accuracy and the validity are greatly improved by using reasonable patterns of the body force densities and the resultant force boundary conditions. Numerical calculations are done for various combinations of the shape and the size of the crack, and practically exact values of the stress intensity factors are determined by extrapolating the numerical results for several mesh patterns. Empirical formulae in polynomial forms are also presented for convenience of practical use.
Résumé
L'étude traite de la mise sous traction et flexion d'une plaque d'épaisseur finie comportant une fissure de surface semi-elliptique. On recourt pour l'analyse à une méthode modifiée d'évaluation des champs de force, où la précision et la validité ont été améliorées en utilisant des configurations pondérées des densités des forces, et des conditions aux limites qui en résultent.
Des calculs numériques sont effectués pour diverses combinaisons de forme et de taille d'une fissure, et l'on détermine des valeurs pratiquement exactes des facteurs d'intensité de contraintes en extrapolant les résultats numériques ä diverses configurations de maillage.
Des formules empiriques sous forme polynominale sont également présentées en vue de rendre aisée leur utilisation pratique.
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References
F.W. Smith, Structural Development Research Memorandum 17, Boeing Airplane Co. (1966).
F.W. Smith and M.J. Alavi, inProceedings of the 1st International Conference on Pressure Vessel Technology, ASME (1969) 783–800.
R.C. Shah and A.S. Kobayashi, inThe Surface Crack: Physical Problems and Computational Solutions, ASME (1972) 79–124.
R.C. Shah and A.S. Kobayashi,International Journal of Fracture 9 (1973) 133–146.
A.S. Kobayashi and W.L. Moss, inFracture, Chapman and Hall (1969) 31–45.
G.R. Irwin,Journal of Applied Mechanics 29 (1962) 651–654.
P.C. Paris and G.C. Sih, inFracture Toughness Testing and Its Application, ASTM STP 381 (1965) 30–83.
R.B. Anderson, A.G. Holms and T.W. Orange,Stress Intensity Magnification for Deep Surface Cracks in Sheets and Plates, NASA TN D-6054 (1970).
H. Miyamoto and T. Miyoshi, inProceedings of Symposium on High Speed Computing of Elastic Structures, IUTAM (1970) 137–155.
D.M. Tracey,Nuclear Engineering and Design 26 (1974) 282–290.
T.K. Hellen and W.S. Blackburn, inComputational Fracture Mechanics, ASME (1975) 103.
H. Miyata and S. Kusumoto,Transactions of JSME 43-367 (1977) 816–824.
H. Miyamoto and K. Kashima,Transactions of JSME 43-370 (1977) 2046–2054.
Y. Murakami and Y. Okazaki,Transactions of JSME 43-376 (1977) 4397–4408.
G. Yagawa, M. Ichimiya and Y. Ando, inProceedings of the 1st International Conference on Numerical Methods in Fracture Mechanics, Swansea (1978) 249–267.
T. Nishioka, G. Yagawa and N. Ogura,Transactions of JSME 45-395 (1979) 717–725.
I.S. Raju and J.C. Newman, Jr.,Engineering Fracture Mechanics 11 (1979) 817–829.
J.C. Newman, Jr. and I.S. Raju,Analyses of Surface Cracks in Finite Plates under Tension and Bending Loads, NASA TP-1578 (1979).
J.R. Rice and N. Levy,Journal of Applied Mechanics 39 (1972) 185–194.
D.M. Parks,Journal of Pressure Vessel Technology, Transactions ASME 103 (1981) 246–254.
H. Abe, K. Hayashi and N. Yamada,Transactions of JSME 47–423 (1981) 1147–1154.
F.W. Smith and D.R. Sorensen,Mixed Mode Stress Intensity Factors for Semi-Elliptical Surface Cracks, NASA CR-134684 (1974).
A.S. Kobayashi, inProceedings of the 2nd International Conference on Mechanical Behavior of Materials, ASME (1976) 1073–1077.
J.C. Newman, Jr.,Engineering Fracture Mechanics 5 (1973) 667–689.
J.N. Masters, W.P. Haese and R.W. Finger,Investigation of Deep Flaws in Thin Walled Tanks, NASA CR-72606 (1969).
K. Watanabe et al.,Transactions of JSME 46-404 (1980) 396–403.
Y. Murakami et al.,Journal of Society of Materials Science, Japan, 31-344 (1982) 515–525.
J.C. Newman, Jr., inPart-through Crack Fatigue Life Prediction, ASTM STP 687 (1979) 16–45.
R.D. Mindlin,Physics 7 (1936) 195–202.
J.D. Eshelby,Proceedings of the Royal Society of London, A-241 (1957) 376–396.
H. Nisitani and Y. Murakami,International Journal of Fracture 10 (1974) 353–368.
R.J. Hartranft and G.C. Sih, inMechanics of Fracture 1, Noordhoff (1973) 179–238.
J.P. Benthem,International Journal of Solids and Structures 13 (1977) 479–492.
E.S. Folias,Journal of Applied Mechanics 42 (1975) 663–674.
H. Nisitani, inProceedings of the 1st International Conference on Numerical Methods in Fracture Mechanics, Swansea (1978) 67–80.
J.P. Benthem and W.T. Koiter, inMechanics of Fracture 1, Noordhoff (1973) 131–178.
M. Isida and H. Noguchi,Engineering Fracture Mechanics, to appear.
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Isida, M., Noguchi, H. & Yoshida, T. Tension and bending of finite thickness plates with a semi-elliptical surface crack. Int J Fract 26, 157–188 (1984). https://doi.org/10.1007/BF01140626
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DOI: https://doi.org/10.1007/BF01140626