A review of the effect of a/W ratio on fracture toughness (III) —theoretical analysis

Li Qing-fen; Zheng Wei; Shu Hai-sheng

doi:10.1007/s11804-005-0013-4

Journal of Marine Science and Application ›› 2005, Vol. 4 ›› Issue (3) : 1 -4. DOI: 10.1007/s11804-005-0013-4

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A review of the effect of a/W ratio on fracture toughness (III) —theoretical analysis

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Abstract

In part I and II of this series, experimental investigation, in both EPFM and LEFM had been discussed. In this part, further theoretical anlaysis is given. The theoretical development of Two Parameter Fracture Mechanics by Hancock etc, has rationalized our experimental results. This method can be applied to engineering practice, and will, allow the advantage of enhanced toughness for specimens with low levels of constraint to be taken into account for defect assessment.

Keywords

two parameter fracture mechanics / T-stress / constraint / fracture toughness / a/W ratio

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Li Qing-fen, Zheng Wei, Shu Hai-sheng. A review of the effect of a/W ratio on fracture toughness (III) —theoretical analysis. Journal of Marine Science and Application, 2005, 4(3): 1-4 DOI:10.1007/s11804-005-0013-4

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References

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