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| AN EXPERIMENTAL STUDY ON THE CORRELATION BETWEEN J-INTEGRAL AND STRAIN ENERGY |
| Wu Xi-jun Jiang Jian Yin Hua-zi (Institute of Metal Research; Academia Sinica) |
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Cite this article:
Wu Xi-jun Jiang Jian Yin Hua-zi (Institute of Metal Research; Academia Sinica). AN EXPERIMENTAL STUDY ON THE CORRELATION BETWEEN J-INTEGRAL AND STRAIN ENERGY. Acta Metall Sin, 1978, 14(4): 420-429.
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Abstract In order to verify the correlation between J-integral and strain energy previously put forward (Acta Metallurgica Sinica, 12, 1976, 162), J_(Ic) values have been determined experimentally by means of TPB type specimens with two different ratios of S/W(4 and 8). The J_(Ic) values obtained by formulaJ=2/B(W-a)(U-U_0+M~2φ/BE'W~2) are: 124-0.5 or 11.7±0.8kg/mm for S/W=4 or 8 and a/W=0.22 to 0.71 or 0.28 to 0.53 respectively. This mesns that similar J_(Ic) values are obtained from TPB specimens of different ratios S/W and a/W. It is further shown that the formula aforementioned contributes a general correlation between J-integral and strain energy.
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Received: 18 April 1978
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