A New High-cycle Fatigue Model under Multiaxial Loading
摘 要
将疲劳强度以上加载等效为塑性应变, 建立了塑性应变与加载应力呈线性关系的表达式, 由此得到循环加载的塑性应变能。该塑性应变能使材料微观组织结构发生不可逆变化而引起等效宏观应力。假定该应力符合一种特定的分布函数, 导出其最大应力与外加应力叠加达到材料本征断裂应力时的裂纹成核寿命, 从而并由微裂纹引起上述两部分应力变化, 得到继续加载直至宏观裂纹出现的疲劳寿命。所建立的多轴疲劳寿命公式由3个材料参数表达, 并通过单轴疲劳试验数据确定。初步研究表明: 该模型对所引用的多轴疲劳试验数据有很好的预测能力。
Abstract
The present multiaxial fatigue model in high-cycle was assumed that the plastic deformation was linear to applied fatigue loading that was above fatigue limits, and the plastic strain energy could be calculated. The microscopic structure of material would be permanently change and produce equivalent macroscopic stress due to plastic energy. Given a distribution function of the stress, derive the crack nucleation life when the superposition of maximum equivalent macroscopic stress and applied loading stress achieves the material′s intrinsic fracture stress, consider in the changes of the above two stresses caused by microcrack, the fatigue life of continue to loading until the macroscopic crack appears could be worked out. The established multiaxial fatigue life prediction formula contains three material parameters, and through uniaxial fatigue experiment data to determine. Preliminary research indicated that the model had a satisfied prediction ability for the referenced multiaxial fatigue test data.
中图分类号 TG111.8
所属栏目 试验与研究
基金项目
收稿日期 2013/3/5
修改稿日期
网络出版日期
作者单位点击查看
备注徐昊(1988-), 男, 硕士。
引用该论文: XU Hao,HU Ming-min,GAO Chao-gan. A New High-cycle Fatigue Model under Multiaxial Loading[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2013, 49(11): 723~726
徐昊,胡明敏,高超干. 一种新的多轴高周疲劳模型[J]. 理化检验-物理分册, 2013, 49(11): 723~726
被引情况:
【1】何雪浤,谢伟涛, "几种常用的金属材料疲劳极限试验方法",理化检验-物理分册 51, 388-393(2015)
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】PAPADOPOULS IV, DAVOLIP, FILIPPINI M, et al. A comparative study of multiaxial high-cycle fatigue criteria for metals[J].International Journal of Fatigue,1997,19(3):219-235.
【2】ZENNER H, SIMBVRGER A, LIU J. On the fatigue limit of ductile metals under complex multiaxial loading[J].International Journal of Fatigue,2000,22:137-145.
【3】GONCALVES CA, ARAJO JA, MAMIYA EN. Multiaxial fatigue: a stress based criterion for hard metals[J].International Journal of Fatigue, 2005, 27:177-187.
【4】ALEKSANDER Karolczuk, EUALD Macha. A review of critical plane orientations in multiaxial failure criteria of mettallic materials[J].International Journal of Fatigue,2005, 134: 267-304.
【5】NIELS Saabye Ottosen, ROBERT Stenstrm, MATTI Ristinmaa. Continuum approach to high-cycle fatigue modeling[J].International Journal of Fatigue,2008,30:996-1006.
【6】FRANCK Morel, THIERRY Palin-Lue, CATHERINE Froustey. Comparative study and link between mesoscopic and energetic approaches in high cycle multiaxial fatigue[J].International Journal of Fatigue,2001,23:317-327.
【7】MULL D, BACON D J. Introduction to Dislocation[M].3rd ed. New York:Pergamon,1983.
【8】HIRTH J P, LOTHE J. Theory of Dislocation[M].2nd ed.New York:John Wiley,1982.
【9】DUBAR L.Fatigue multiaxiale des aciers-passage deI′endurance à I′endurance limitee-prise en compte des accidents[C]//Geometriques PH D Thesis Ecole Nationale Superieure d′Arts et Metiers.Talence, France: [s.n.],1992.
【2】ZENNER H, SIMBVRGER A, LIU J. On the fatigue limit of ductile metals under complex multiaxial loading[J].International Journal of Fatigue,2000,22:137-145.
【3】GONCALVES CA, ARAJO JA, MAMIYA EN. Multiaxial fatigue: a stress based criterion for hard metals[J].International Journal of Fatigue, 2005, 27:177-187.
【4】ALEKSANDER Karolczuk, EUALD Macha. A review of critical plane orientations in multiaxial failure criteria of mettallic materials[J].International Journal of Fatigue,2005, 134: 267-304.
【5】NIELS Saabye Ottosen, ROBERT Stenstrm, MATTI Ristinmaa. Continuum approach to high-cycle fatigue modeling[J].International Journal of Fatigue,2008,30:996-1006.
【6】FRANCK Morel, THIERRY Palin-Lue, CATHERINE Froustey. Comparative study and link between mesoscopic and energetic approaches in high cycle multiaxial fatigue[J].International Journal of Fatigue,2001,23:317-327.
【7】MULL D, BACON D J. Introduction to Dislocation[M].3rd ed. New York:Pergamon,1983.
【8】HIRTH J P, LOTHE J. Theory of Dislocation[M].2nd ed.New York:John Wiley,1982.
【9】DUBAR L.Fatigue multiaxiale des aciers-passage deI′endurance à I′endurance limitee-prise en compte des accidents[C]//Geometriques PH D Thesis Ecole Nationale Superieure d′Arts et Metiers.Talence, France: [s.n.],1992.
相关信息