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| A MODIFIED DOUBLE CANTILEVER BEAM MODEL FOR DETERMINING K_(Ic) |
| Dong Xuemin Central Iron and Steel Research Institute; Ministry of Metallurgical Industry |
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Cite this article:
Dong Xuemin Central Iron and Steel Research Institute; Ministry of Metallurgical Industry. A MODIFIED DOUBLE CANTILEVER BEAM MODEL FOR DETERMINING K_(Ic). Acta Metall Sin, 1979, 15(3): 392-399.
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Abstract A modified model of double cantilever beam in determining K_(IC) has been pro-posed. In our model the behaviour of the double cantilever beam specimen ischaracterized by a constant stress intensity factor on condition that cracks in thespecimen propagate under constant displacement conditions. Results obtained froma 4340 steel appear to be in reasonable agreement with the established data.
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Received: 18 March 1979
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[1] Mostovoy. C. et al., J. Mater. Sci., 2 (1967) . 661．
[2] Raasch, J., Int. J. Fract. Mech., 7 (1971) , 289．
[3] Kanninen, M. F., Int. J. Fract., 10 (1974) , 415．
[4] 杜庆华,材料力学,人民教育出版社,1961,p.197． |
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