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| CORRELATION BETWEEN THE CHARACTERISTIC LENGTH PARAMETER OF THE QUASI-CLEAVAGE FRACTURE AND FRACTURE TOUGHNESS |
| Sun Fuyu Central Iron and Steel Research Institute; Ministry of Metallurgical Industry |
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Cite this article:
Sun Fuyu Central Iron and Steel Research Institute; Ministry of Metallurgical Industry. CORRELATION BETWEEN THE CHARACTERISTIC LENGTH PARAMETER OF THE QUASI-CLEAVAGE FRACTURE AND FRACTURE TOUGHNESS. Acta Metall Sin, 1980, 16(1): 59-134.
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Abstract The fracture surfaces of certain fracture toughness specimens have been ex-amined by SEM. With materials fractured in quasi-cleavage mechanism, the meandistance, ξ, from the pre-crack tip to the site where the quasi-cleavage crackstarts is regarded to be a characteristic parameter. It seems that this related toG_(Ic) and can be used as an important parameter characterizing the stress field ofthe plastic zone.
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Received: 18 January 1980
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[1] Spitzig, W.A., Amer. Soc. Test. Mater., Spec. Tech. Publ. № 453, p. 90．
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[3] 陈篪,金属学报,13(1977) ,57．
[4] 陈篪,金属断裂研究文集,冶金工业出版社,1978年,p.30．
[5] Levy, N., Marcal, P.V., Ostergren, W.T. and Rice, J.R., Int. J. Fract. Mech., 7(1971) , 143．
[6] Riichie, R.O., Knott, J.F. and Rice, J.R., J. Mech. Phys. Solids, 21 (1973) , 395． |
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