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OALib Journal期刊
ISSN: 2333-9721
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镍基单晶合金多轴非比例加载低周疲劳单胞模型
Keywords: 金属材料,低周疲劳,单晶合金,多轴非比例加载,单胞模型,寿命预测
Abstract:
？在680和850℃下对dd3镍基单晶合金进行多轴非比例加载低周疲劳试验,结果表明等效应变范围δεe、试验温度、等效应力范围δσe对单晶合金的低周疲劳寿命有显著影响。基于能量耗散理论,引入参量k表征多轴非比例加载对疲劳寿命的影响,构造循环塑性应变能作为损伤参量,建立镍基单晶合金低周疲劳寿命预测模型。参量k与循环寿命之间呈幂函数关系。根据镍基单晶合金的微观尺度结构特征,建立γ/γ'双相单胞有限元模型,进行多轴非比例循环加载应力应变数值模拟。根据宏观有限元模型和γ/γ'双相单胞微观有限元模型的计算结果,以及镍基单晶合金680和850℃低周疲劳试验数据,对疲劳寿命模型进行多元线性回归分析,结果表明微观单胞有限元模型的分析精度比宏观有限元模型显著提高,两种温度下的试验数据分别落在1.6倍和2.0倍偏差分布带内。
| [1] | 3wangjianguo,multiaxialfatiguepropertiesandlifepredictionofgh4169superalloyunderproportionalandnonproportionalloadingathightemperature,phdthesis,universityofscienceandtechnologybeijing(2006)
|
| [2] | (王建国,gh4169合金高温多轴比例与非比例加载下疲劳特性及其寿命预测,博士学位论文,北京科技大学,(2006))
|
| [3] | 4chenxu,anke,qirong,lowcyclefatiguelifepredictionfor304stainlesssteelundernonproportionloadings,journalofmechanicalstrenght,23(3),316(2001)
|
| [4] | (陈旭,安柯,齐荣,非比例载荷下304不锈钢低周疲劳寿命预测,机械强度,23(3),316(2001))
|
| [5] | 5shangdeguang,sunguoqin,caineng,wangjianguo,multiaxialfatiguebehaviorofgh4169superalloyundernon-proportionalloadingsathightemperature,journalofaeronauticalmaterials,26(6),6(2006)
|
| [6] | (尚德广,孙国芹,蔡能,王建国,非比例加载下gh4169高温多轴疲劳行为研究,航空材料学报,26(6),6(2006))
|
| [7] | 6chenjiping,dingzhiping,yinzeyong,liuyilun,studyonlow-cyclefatigueexperimentsandlifepredictionofsinglecrystalnickel-basedsuperalloysunderasymmetricalcyclicloading,actamechanicasolidsinica,28(1),115(2007)
|
| [8] | (陈吉平,丁智平,尹泽勇,刘义伦,镍基单晶合金非对称循环载荷低周疲劳试验研究与寿命预测,固体力学学报,28(1),115(2007))
|
| [9] | 7yuezhufeng,lvzhenzhou,amodelofmultiaxiallowcyclefatiguelifetimeofanickel-basesinglecrystal,raremetalmaterialsandengineering,29(1),28(2000)
|
| [10] | (岳珠峰,吕震宙,复杂应力状态下镍基单晶合金低周疲劳寿命预测模型,稀有金属材料工程,29(1),28(2000))
|
| [11] | 8yuezhufeng,yuqingmin,wenzhixun,hounaixian,ni-basedsinglecrystalturbinebladestructuralstrengthdesign(beijing,sciencepress,2008)p.94
|
| [12] | (岳珠峰,于庆民,温志勋,侯乃贤,镍基单晶涡轮叶片结构强度设计(北京,科学出版社,2008)p.94)
|
| [13] | 9sunguoqin,shangdeguang,chenjianhua,dengjing,elastoplasticfiniteelementanalysisandfatiguelifepredictionfornotchedspecimensunderbiaxialcyclicloading,journalofmechanicalengineering,44(1),134(2008)
|
| [14] | (孙国芹,尚德广,陈建华,邓静,缺口件两轴循环弹塑性有限元分析及寿命预测,机械工程学报,44(1),134(2008))
|
| [15] | 10liulingling,wangjianguo,stress-strainfieldfemanalysisforgh4169notchedspecimensundermultiaxialloading,physicsexaminationandtesting,23(3),11(2005)
|
| [16] | (刘灵灵,王建国,gh4169缺口件多轴加载下应力应变场的有限元分析,物理测试,23(3),11(2005))
|
| [17] | 11m.okazaki,m.sakaguchi,thermo-mechanicalfatiguefailureofasinglecrystalni-basedsuperalloy,internationaljournaloffatigue,30,318(2008)
|
| [18] | 12f.t.meissionnier,e.p.busso,finiteelementimplementationofageneralizednon-localrate-dependentcrystallographicformulationforfinitestrains,internationaljournalofplasticity,17,601(2001)
|
| [19] | 13dingzhiping,liuyilun,yinzeyong,yangzhiguo,chengxiaoming,constitutivemodelforfccsinglecrystalmaterial,journalofcentralsouthuniversuty,35(3),423(2004)
|
| [20] | (丁智平,刘义轮,尹泽勇,杨治国,成晓鸣,面心立方晶体单晶材料弹塑性本构模型,中南大学学报,35(3),423(2004))
|
| [21] | 1t.nakamura,t.ishikawa,y.asada,relaxationbehaviorof304stainlesssteelundertension-torsionbiaxialloading.internationaljournalofpressurevesselsandpiping,51,211(1992)
|
| [22] | 2mitsurukanda,masaosakane,masateruohnami,hightemperaturemultiaxiallowcyclefatigueofcmsx–2ni–basesinglecrystalsuperalloy,asemjournalofengineeringmaterialsandtechnology,119,153(1997)
|
| [23] | 14zhipingding,jipingchen,tengfeiwang,mingli,influenceanalysisofmultifactoronlcfdamageofsinglecrystalnickel-basedsuperalloy,advancedmaterialsresearch,139-141,198(2010)
|
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