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| A review of the effect of a/W ratio on fracture toughness (Ⅲ)——theoretical analysis | |
| 作者姓名： | LI Qing-fen ZHENG Wei and SHU Hai-sheng School of Mechanical and Electrical Engineering Harbin Engineering University Harbin 150001 China |
| 作者单位： | LI Qing-fen，ZHENG Wei，and SHU Hai-sheng School of Mechanical and Electrical Engineering，Harbin Engineering University，Harbin 150001，China |
| 摘 要： | In partⅠandⅡof this series, experimental investigation in both EPFM and LEFM had been discussed. In this part, further theoretical analysis 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. |
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