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Experimental and computational investigation of weathering steel Q450NQR1 under high cycle fatigue loading via crystal plasticity finite element method

文献类型：期刊论文

作者Cong, Tao6; Li, Ruiyang5; Zheng, Zhanguang5; Ma, Xianfeng4; Wu, Si6; Zhang, Ruiqi3; Berto, Filippo2; Sun, Jingyu1; Qian, Guian1; Qian GA(钱桂安)
刊名INTERNATIONAL JOURNAL OF FATIGUE
出版日期2022-06-01
卷号159页码:12
ISSN号0142-1123
关键词Crystal plasticity Very-high-cycle fatigue Inclusion Voronoi tessellation Fatigue indicator parameter
DOI10.1016/j.ijfatigue.2022.106772
通讯作者Ma, Xianfeng(maxf6@mail.sysu.edu.cn) ; Sun, Jingyu(sunjingyu@imech.ac.cn) ; Qian, Guian(qianguian@imech.ac.cn)
英文摘要The fatigue properties of the Q450NQR1 steel were experimentally and computationally investigated. The experimental results show a large scatter of the fatigue lifetime under the high cycle fatigue loading. Based on the Voronoi diagram and crystal plastic model, a polycrystalline representative volume element (RVE) model with a pore or inclusion was constructed to analyze the effect of local stress-strain on the high cycle fatigue (HCF) and very-high-cycle fatigue (VHCF) life. Computational results show that the large deformation mostly occurs at the grain with a large Schmid factor. The increment of the mean accumulated plastic strain of the critical grain was proposed as the fatigue indicator parameter (FIP). A fatigue model was suggested based on the FIP, and the fatigue model can describe the influence of the material microstructures on fatigue life. The fatigue life curve with different sizes of defects was plotted and it is found that inclusions are the major factor in fatigue life dispersion.
WOS关键词CRACK INITIATION ; NUCLEATION ; SIMULATIONS ; METALS ; LIFE ; SLIP
资助项目Development Project of China Railway[N2020J028] ; China Academy of Railway Sciences Corporation Limited[2020YJ115] ; National Natural Science of China[12002185] ; National Natural Science of China[11872364] ; National Natural Science of China[11932020] ; National Natural Science of China[12072345] ; CAS Pioneer Hundred Talents Program
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000795137300003
资助机构Development Project of China Railway ; China Academy of Railway Sciences Corporation Limited ; National Natural Science of China ; CAS Pioneer Hundred Talents Program
源URL[http://dspace.imech.ac.cn/handle/311007/89513]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Ma, Xianfeng; Sun, Jingyu; Qian, Guian
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
2.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway
3.Angang Steel Co Ltd, Anshan 114021, Peoples R China
4.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Guangdong, Peoples R China
5.Guangxi Univ, Coll Mech Engn, Nanning 530004, Peoples R China
6.China Acad Railway Sci Corp Ltd, Met & Chem Res Inst, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Cong, Tao,Li, Ruiyang,Zheng, Zhanguang,et al. Experimental and computational investigation of weathering steel Q450NQR1 under high cycle fatigue loading via crystal plasticity finite element method[J]. INTERNATIONAL JOURNAL OF FATIGUE,2022,159:12.
APA Cong, Tao.,Li, Ruiyang.,Zheng, Zhanguang.,Ma, Xianfeng.,Wu, Si.,...&钱桂安.(2022).Experimental and computational investigation of weathering steel Q450NQR1 under high cycle fatigue loading via crystal plasticity finite element method.INTERNATIONAL JOURNAL OF FATIGUE,159,12.
MLA Cong, Tao,et al."Experimental and computational investigation of weathering steel Q450NQR1 under high cycle fatigue loading via crystal plasticity finite element method".INTERNATIONAL JOURNAL OF FATIGUE 159(2022):12.

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来源：力学研究所

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