典型缺口件疲劳寿命分析方法

张成成; 姚卫星

典型缺口件疲劳寿命分析方法

张成成¹,
姚卫星²

1.
中航商用航空发动机有限责任公司结构完整性工程研究中心, 上海 200240
2.
南京航空航天大学航空宇航学院, 南京 210016

基金项目: 上海市“引进技术消化与吸收”专项资金(12XI-04)

计量
- 文章访问数: 2160
- HTML浏览量: 330
- PDF量: 1138
- 被引次数: 0
出版历程
- 收稿日期: 2012-03-01
- 刊出日期: 2013-06-28

Typical fatigue life analysis approaches for notched components

ZHANG Cheng-cheng¹,
YAO Wei-xing²

1.
Center of Research for Aero-Engine Structural Integrity, Commercial Aircraft Engine Company Limited, Aviation Industry Corporation of China, Shanghai 200240, China
2.
College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 通过对典型缺口件疲劳寿命分析方法进行系统的回顾,按照疲劳缺口效应描述参数的不同将缺口件疲劳分析方法划分为3类:局部应力应变法、应力梯度法和临界域法.结合4种不同缺口几何下的LY12CZ铝合金缺口件的低周疲劳试验数据,对上述3类方法进行的验证对比可以发现:考虑了应力梯度和应力场分布的方法(如临界域法和应力梯度法)对缺口件疲劳寿命的预测结果与试验结果吻合较好而局部应力应变法预测精度较差,其中应力场强法还能够正确地预测疲劳破坏位置.
- 应力集中 /
- 缺口效应 /
- 应力梯度 /
- 应力分布 /
- 疲劳寿命
Abstract: Some commonly used fatigue life analysis approaches for notched components were systemically reviewed.According to different descriptions of the notch effect,the fatigue life analysis approaches for notched component were classified into three categories,namely,local stress-strain approaches,stress gradient approaches and critical zone approaches.The capability of each approach was discussed and experimentally checked by four groups of LCF(low cycle fatigue) test data of LY12CZ aluminum alloy under different notch geometry.It's found that the predictions with regard to stress gradient and distribution of stress field (e.g. critical zone approach and stress gradient approach) show a good agreement with test data as well as the stress field intensity approach can predict the correct failure location, while the local stress-strain approach showes poor fitness and low accuracy.
- stress concentration /
- notch effect /
- stress gradient /
- stress distribution /
- fatigue life

HTML

参考文献(47)

[1]	姚卫星.结构疲劳寿命分析[M].北京:国防工业出版社,2002.
[2]	Tanaka K.Engineering formulae for fatigue strength reduction due to crack-like notches[J].International Journal of Fracture,1983,22(2):39-46.
[3]	Sheppard S D.Filed effects in fatigue crack initiation:long life fatigue strength[J].Transactions of the ASME,1991,113(2):188-194.
[4]	Haritos G K,Nicholas T,Lanning D B.Notch size effects in HCF behavior of Ti-6Al-4V[J].International Journal of Fatigue,1999,21(7):643-652.
[5]	Taylor D.Geometrical effects in fatigue:a unifying theoretical model[J].International Journal of Fatigue,1999,21(5):413-420.
[6]	Taylor D,Wang G.The validation of some methods of notch fatigue analysis[J].Fatigue and Fracture of Engineering Material and Structures,2000,23(5):387-394.
[7]	Du Quesnay D L,Yu M T,Topper T H.An analysis of notch-size effects at the fatigue limit[J].Journal of Testing and Evaluation,1988,16(4):375-385.
[8]	Makkone M.Notch size effects in the fatigue limit of steel[J].International Journal of Fatigue,2003,25(1):17-26.
[9]	孙国芹,尚德广,陈建华,等.缺口件两轴循环弹塑性有限元分析及寿命预测[J].机械工程学报,2008,44(2):134-138. SUN Guoqin,SHANG Deguang,CHEN Jianhua,et al.Elastoplastic finite element analysis and fatigue life prediction for notched specimens under biaxial cyclic loading[J].Chinese Journal of Mechanical Engineering,2008,44(2):134-138.(in Chinese)
[10]	Firat M,Kozan R,Ozsoy M,et al.Numerical modeling and simulation of wheel radial fatigue tests[J].Engineering Failure Analysis,2009,16(5):1533-1541.
[11]	Ye D Y,Hertel O,Vormwald M.A unified expression of elastic-plastic notch stress-strain calculation in bodies subjected to multiaxial cyclic loading[J].International Journal of Solids and Structures,2008,45(24):6177-6189.
[12]	Neuber H.Theory of stress concentration for shear-strained prismatical bodies with arbitrary nonlinear stress-strain law[J].ASME Journal of Applied Mechanics,1961,28(4):544-250.
[13]	Glinka G.Energy density approaches to calculation of inelastic stress-strain near notches and cracks[J].Engineering Fracture Mechanics,1985,22(3):485-508.
[14]	Glinka G.Calculation of inelastic notch-tip strain-stress histories under cyclic loading[J].Engineering Fracture Mechanics,1985,22(5):839-854.
[15]	Singh M N K,Glinka G,Dubey R N.Elastic-plastic stress-strain calculation in notched bodies subjected to non-proportional loading[J].International Journal of Fracture,1996,76(1):39-60.
[16]	Umeda H,Sakane M,Ohmani M.Notch root displacement approach to predict crack initiation life of notched specimen in high-temperature multiaxial low cycle fatigue[J].Journal of Engineering Materials and Technology,1990,112(4):429-434.
[17]	Knop M,Jones R,Molent L,et al.On the Glinka and Neuber methods for calculating notch tip strains under cyclic load spectra[J].International Journal of Fatigue,2000,22(9):743-755.
[18]	Miller K J.The two thresholds of fatigue behaviour[J].Fatigue and Fracture of Engineering Materials and Structures,1993,16(9):931-939.
[19]	Meneghetti G,Susmel L,Tovo R.High-cycle fatigue crack paths in specimens having different stress concentration features[J].Engineering Failure Analysis,2007,14(4):656-672.
[20]	张志建,姚枚,杨庆祥,等.缺口件表象疲劳极限的定量化分析[J].力学学报,2004,36(1):112-117. ZHANG Zhijian,YAO Mei,YANG Qingxiang,et al.Quantitative analysis of apparent fatigue limits of notched specimens[J].Chinese Journal of Theoretical and Applied Mechanics,2004,36(1):112-117.(in Chinese)
[21]	Wetzel R M.Smooth specimen simulation of the fatigue behavior of notches [J].Journal of Materials,1968,3(3):646-657.
[22]	Topper T H,Wetzel R M,Morrow J.Neuber's rule applied to fatigue of notched specimens[J].Journal of Materials,1969,4(1):200-209.
[23]	Dowling N E.Fatigue at notches and the local strain fracture mechanics approaches[C]//Proceedings of the Eleventh National Symposium on Fracture Mechanics:Part Ⅰ.Blacksburg,VA,USA:ASTM Special Technical Publication,1979:247-273.
[24]	Hofftmann M,Seeger T.Stress-strain analysis and life prediction of a notched shaft under multiaxial loading[C]//International Conference on Mechanical Science and Engineering.German:Trans Tech Publications Ltd,1989:81-99.
[25]	Klann D A,Tipton S M,Cordes T.Notch stress and strain estimation considering multiaxial constrain[R].SAE Technical Report 930401,1993.
[26]	Moftakhar A,Buczynski A,Glinka G.Calculation of elasto-plastic strains and stresses in notches under multiaxial loading[J].International Journal of Fractrue,1995,70(4):357-373.
[27]	Bentachfine S,Pluvinage G,Gilgert J,et al.Notch effects in low cycle fatigue[J].International Journal of Fatigue,2000,21(5):421-430.
[28]	Lee Y L,Chang Y,Wong H H.A constitutive model for estimating multiaxial notch strains[J].Journal of Engineering Materials and Technology,1995,117(1):33-40.
[29]	Jiang Y,Sehitoglu H.Modeling of cyclic ratcheting plasticity:Part Ⅰ development of constitutive equations[J].Journal of Applied Mechanics,1996,63(3):720-725.
[30]	刘宇杰.金属材料多轴棘轮-疲劳交互作用的实验与理论研究.成都:西南交通大学,2008. LIU Yujie.Experimental and theoretical study on multiaxial ratchetting-fatigue interaction for metal materials.Chengdu:Southwest Jiaotong University,2008.(in Chinese)
[31]	Qylafku G,Azari Z,Kadi N,et al.Application of a new model proposal for the fatigue life prediction on notches and key-seats[J].International Journal of Fatigue,1999,21(8):753-760.
[32]	Qylafku G,Kadi N,Azari Z,et al.Fatigue of specimens subjected to combined loading:role of hydrostatic pressure[J].International Journal of Fatigue,2001,23(8):689-701.
[33]	Siebel E,Stieler M. Significance of dissimilar stress distributions for cycling loading[J].VDI-Z,1955,97(5):121-126. (in German)
[34]	Filippini M.Stress gradient calculations at notches[J].International Journal of Fatigue,2000,22(5):397-409.
[35]	Adib H,Pluvinage G.Theoretical and numerical aspects of the volumetric approach for fatigue life prediction in notched components[J].International Journal of Fatigue,2003,25(1):67-76.
[36]	Collins J A.Failure of materials in mechanical design:analysis,prediction,and preventionp[M].2nd ed.New York:Wiley Publication,1993.
[37]	Lee L Y,Pan J,Hathaway R B.Fatigue testing and analysis:theory and practice[M].USA:Elsevier Butterworth-Heinemann,2005.
[38]	Neuber H.Theory of notch stress:principles for exact calculation of strength with reference to structural form and material[M].2nd ed.Berlin:Springer Verlag,1958.
[39]	Peterson R E.Notch sensitivity[M]//Sines G,Waisman J L.Metal fatigue.New York:McGraw Hill,1959:293-306.
[40]	YAO Weixing.Stress field intensity approach for predicting fatigue life[J].International Journal of Fatigue,1993,15(3):234-245.
[41]	YAO Weixing.A verification of the assumption of anti-fatigue design[J].International Journal of Fatigue,2001,23(3):271-277.
[42]	Susmel L.A unifying approach to estimate the high-cycle fatigue strength of notched components subjected to both uniaxial and multiaxial cyclic loadings[J].Fatigue and Fracture of Engineering Materials and Structures,2004,27(5):391-411.
[43]	Susmel L,Taylor D.Can the conventional high-cycle multiaxial fatigue criteria be re-interpreted in terms of the theory of critical distances[J].Structural Durability & Health Monitoring,2006,2(2):115-129.
[44]	Susmel L.The theory of critical distances:a review of its applications in fatigue [J].Engineering Fracture Mechanics,2008,75(7):1706-1724.
[45]	Lanning D B,Nicholas T,Palazotto A.The effect of notch geometry on critical distance high cycle fatigue predictions[J].International Journal of Fatigue,2005,27(10):1623-1627.
[46]	Lanning D B,Nicholas T,Haritos G K.On the use of critical distance theories for the prediction of the high cycle fatigue limit stress in notched Ti-6Al-4V[J].International Journal of Fatigue,2005,27(1):45-57.
[47]	Naik R A,Lanning D B,Nicholas T.A critical plane gradient approach for the prediction of notched HCF life[J].International Journal of Fatigue,2005,27(5):481-492.