Abstract
The evaluated method in engineering for ice load caused by the interaction of ice and structures is according to the compressive strength of ice. The test of interaction of ice and piles indicated that the majority of failures of ice sheets is mainly due to bending. Since the ice cannot avoid existing flaws and cracks, then if the loading rate is large the ice expresses brittle behavior, hence, it is reasonable to evaluate the strength of sea ice in accordance with the fracture toughness K IC which is determined on the basis of linear elastic fracture mechanics. This paper states the principle and method of studies for mode I and mode II fracture toughness K IC and K IIC . The data obtained already by the author indicate that at 253 K, K IC and K IIC do not vary with the stress intensity factor rate, K I and K II . Because the acting conditions of ice load are very complicated, in order to determine what fracture criterion would be suitable, the study of fracture problems of I-II mixed mode is necessary. The results obtained previously indicated that they coincide with the criterion established from the strain energy density factor theorem. The author had considered that during the interaction of ice and piles, the mode I fracture failure of ice is sometimes due to eccentric compression, so a concept of using the Compact Compression Test Specimen for the test of fracture toughness K IC had been suggested, and some corresponding evaluation and analysis had been made. Some preliminary results had been obtained, which will be discussed.
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References
Bentley, D.L., Dempsey, J.P. and Sodhi, D.S. 1987. The fracture toughness of urea model ice. ASCE Engineering Mechanics Division, 6th Specialty Conference, Buffalo, N.Y.
Chen, C. 1974. The stress intensity factor KJ of fracture toughness specimen subjected to 3-point bending. Journal of Mechanics (Chinese), No. 3, p. 121.
Chen, C. 1976. The research of Ku on 4-point bending beam with single-side crack. Proc. of 2nd Conference of Fracture Mechanics (Chinese).
Dempsey, J.P., Bentley, D.L., and Sodhi, D.S. 1986. Fracture toughness of model ice. Proc. 8th IAHR Symposium on Ice, Iowa City, IA, Vol. 1, pp. 365–376.
Gold, L.W. 1963. Crack formation of ice plate by thermal shock. Canadian J. Physics, 41, pp. 1712–1238.
Goodman, D.J. 1980. Critical stress intensity factor (Kic) measurements at high loading rates for polycrystalline ice. Physics and Mechanics of Ice, IUTAM Symposium, Copenhagen, Denmark, Springer-Verlag, pp. 129–141.
Goodman, D.J. and Tabor, D. 1978. Fracture toughness of ice: a preliminary account of some new experiments. J. Glaciology, 21, No. 85, pp. 651–660.
Gross, B. and Strawley J.E. 1965. Stress Intensity Factors for Single-Edge-Notch Specimens in Bending or Combined Bending and Tension by Boundary Collocation of a Stress Function. NASA Technical Note D-2603, January.
Hamza, H. and Muggeridge, D.B. 1979. Plain strain fracture toughness (Kic) of freshwater ice. Proc. POAC’79, Trondheim, Norway, Vol. 1, pp. 697–707.
Hausler, F.U. (ed.) 1988. IAHR Working Group on Testing Methods in Ice. IAHR recommendations on testing methods in ice, 6th report. Published by Hiroshi Saeki and Ken-ich Hirayama, Organizing Committee, IAHR Ice Symposium, Sapporo, Japan.
Liu, H.W. and Miller, K.J. 1979. Fracture toughness of fresh water ice. J. Glaciology, 22, No. 86, pp. 135–143.
Miller, K.J. 1980. The application of fracture mechanics to ice. Physics and Mechanics of Ice, IUTAM Symposium, Copenhagen, Denmark, Springer-Verlag, pp. 265–277.
Nixon, W.A. and Schulson, E.M. 1986. Fracture toughness of freshwater ice as a function of loading rate. Proc. 1st International Ice Technology Conference, Cambridge, MA, pp. 287–296.
RIM(Academia Sinica). 1976. Journal of Mechanics (Chinese), 3, p. 168.
Scrawley, J.E. and Gross, B. 1967. Stress intensity factors for crackline-loaded edge-crack specimens. Mat. Res. and Standard, 77, p. 155.
Scrawley, J.E. and Gross, B. 1972, Stress intensity factors for bend and compact specimens. Eng. Frac. Mech. 4, p. 587.
Shen, W. and Lin, S.Z. 1986. Fracture toughness of Bohai Sea ice. Proc. OMAE’86, Tokyo, Japan, Vol.IV, pp. 345–357.
Shen, W., Li, H.S., Zhang, X.P. and Bai, S.L. 1987. The experimental investigations on scale effect of Bohai Sea ice. Proc. OMAE’87, Houston, TX, Vol.IV, pp. 173–179.
Shen. W., Li, ft.S., Zhang, X.P. and Ji, X.H. 1988. A new concept of compact compression test specimen to study the KJ and KIC for Bohai Sea ice. Proc. OMAE’88, Houston, TX, Vol.IV, pp. 25–29.
Sih, G.C. 1974v Strain energy density factor applied to mixed mode crack problems. International Journal of Fracture, 10, p. 305.
Timco, G.W. 1985. Flexural strength and fracture toughness of urea model ice. Proc. OMAE’85, Dallas, TX, Vol. II, pp. 199–208.
Timco, G.W. and Frederking, R.M.W. 1983. Flexural strength and fracture toughness of sea ice. Cold Regions Science and Technology, 8, pp. 35–41.
Urabe, N., Iwasake, T. and Yoshitake, A. 1980. Fracture toughness of sea ice. Cold Regions Science and Technology, 3, pp. 29–37.
Urabe, N. and Yoshitake, A. 1981. Strain-rate dependent fracture toughness (Kic)of pure ice and sea ice. Proc. IAHR Symposium on Ice, Quebec City, PQ, Vol. 11, pp. 551–563.
Williams, M.L. 1957. On the stress distribution at the base of a stationary crack. J. Appl. Mech, 24, p. 109.
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Shen, W., Lin, S.Z., Gu, P., Zhou, X.A. (1991). The Study of Fracture Toughness of Bohai Sea Ice. In: Jones, S., Tillotson, J., McKenna, R.F., Jordaan, I.J. (eds) Ice-Structure Interaction. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84100-2_9
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DOI: https://doi.org/10.1007/978-3-642-84100-2_9
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