EFFECT OF NON-PROPORTIONAL OVERLOADINGON FATIGUE CRACK GROWTH
GAO Hua;CHEN Youxuan;LI Ming;CHEN Dehai Shanghai University of Engineering Science Shanghai Dalong Machinery associate professor;Department of Materials;Shanghai University of Engineering Science;Shanghai 200051
Cite this article:
GAO Hua;CHEN Youxuan;LI Ming;CHEN Dehai Shanghai University of Engineering Science Shanghai Dalong Machinery associate professor;Department of Materials;Shanghai University of Engineering Science;Shanghai 200051. EFFECT OF NON-PROPORTIONAL OVERLOADINGON FATIGUE CRACK GROWTH. Acta Metall Sin, 1990, 26(4): 66-72.
Abstract The effects of proportional and non-proportional overloading on modeⅠ fatigue crack growth have been studied, and the influences of crack tip plasticzone, crack tip blunting as well as crack closure were discussed. The proportional(mode Ⅰ) overloading may cause more serious crack growth retardation than non-proportional (mixed mode) overloading. Therefore, for estimating fatigue life ofengineering structures to simplify a real overload which may often be non-propor-tional as a proportional one is not always safe.
CHEN Wenzhe;ZHANG Sa;QIAN Kuangwu (Department of Materials; Fuzhou University; Fuzhou 350002)GU Haicheng (Institute of Materials; Xi'an Jiaotong University; Xi'an 710049)WANG Zhongguang (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015). FATIGUE CRACK GROWTH RATES AND FATIGUE THRESHOLDS OF CENTRIFUGAL SPRAY DEPOSITED Ti-48Al-2Mn-2Nb[J]. 金属学报, 1998, 34(1): 70-74.
WEI Xuejun; LI Jin; KE Wei(State Key Laboratory of Corrosion and Protection; Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences; Shenyang 110015); (State Key Laboratory of Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)(Manuscript received 1995-08-23). INFLUENCE OF SUPERPOSED SMALL LOADS ON FATIGUE CRACK PREPAGATION RATE OF A537 STEEL[J]. 金属学报, 1996, 32(5): 504-509.
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AI Suhua;GUAN Shaoxuan(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy; of Sciences; Shenyang 110015).FENG Zemin; GE Jingyan(Northeastern University; Shenyang 110006). EFFECT OF MICROSTRUCTURE ON FATIGUE CRACK GROWTH OF Ti_3Al-Nb ALLOYS[J]. 金属学报, 1995, 31(4): 183-190.