10 meaning of the eff B2 is to give out effective value of energy in one cycle made specimens before to failure. Its geometrical meaning is a maximal micro-trapezia area to approximate to beeline. (4) The crack growth rate equations (24) and (28) are generally suitable for under s σ σ=> ; and the (10), (16), (20) and (21) can only applied to under s σ σ 0.5 <= . If the (10), (16), (20), (21) are applied to under s σ σ 0.5 > and s σ σ< , their calculation error are larger. Acknowledgments Author thanks sincerity the Zhejiang Province Natural Science fund Committee to support and provide subsidization of research funds. Numbers of supporting project is Y1111267. References [1] Yu Yangui, Tan Jianrong. The calculations in whole process of fatigue-damage-fracture for components. Advances in fracture research. ICF9, PERGAMON, Sydney, 1997, pp.1401–1409. [2] Yu Yangui. The Correlation among Each Parameter in Some Equation on Crack Growth Stage, Advances in Fracture Research, ICF9, Sydney, Volume 3. PERGAMON. pp.1395-2002. 1997. [3] W. D. Dover, Engineering Fracture Mechanics, Vol. 5, Nol. 5, (1973)11. [4] B. B. Pokrovsky, B. Kaplunenko G. Influence of asymmetry cycle on the characteristics of the cyclic crack resistance for thermostable steels. Problems of strength. (1987), 11, 8–13. (B. B. Покровский, B. Г. Каплуненко, Влияние асимметрии цикла на характеристики циклической трещиностойкости Теплоустойчивых сталей. Проблемы Прочности. (1987) 11. 8~13.) [5] Yu Yangui, Sun Yiming, MaYanghui and XuFeng. The Computing of intersectant relations for its Strength Problem on Damage and Fracture to Materials with short and long crack. International Scholarly Research Network ISRN Mechanical EngineeringVolume 2011, Article ID 876396. [6] Yangui Yu，The Calculations of Evolving Rates Realized with Two of Type Variables in Whole Process for Elastic-Plastic Materials Behaviors under Unsymmetrical Cycle. Mechanical Engineering Research; Vol. 2, No. 2; ISSN 1927-0607(print) E-ISSN 1927-0615(Online). Canadian Center of Science and Education (2012) 77-87. [7] Yu Yangui, Bi Baoxiang, MaYanghau, Xu Feng. Damage Calculations in Whole Evolving Process Actualized for the Materials Behaviors of Structure with Cracks to Use Software Technique. th 12 International Conference on Fracture Proceeding. 2009, July 12-19, Ottawa, (CD, Author Index Y, Yangui). [8] S. Ya. Yaliema. Correction about Paris’s equation and cyclic intensity character of crack. J. Strength Problem. Vol, 147，(1981) 9:20–28. (In Russian). [9] Dugdale, D. s. J. Mech Physiss Solids 8 (1960),100–104. [10] GB/T 19624-2004, Safety assessment for in-service pressure vessels containing defects (2005), China. 2005; 24–26 ( in Chinese).
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