Experimental and Numerical Investigations of Fretting Fatigue Behavior for Steel Q235 Single-Lap Bolted Joints
Experimental and Numerical Investigations of Fretting Fatigue Behavior for Steel Q235 Single-Lap Bolted Joints
复制标题
Q235钢单圈螺栓接头微动疲劳行为的实验与数值研究
DOI：
10.1155/2016/6375131
复制
发表时间：
2016-09
影响因子：
--
通讯作者：
Zhang Yuqing
中科院分区：
文献类型：
--
作者：
Xu Yazhou;Sun Zhen;Zhang Yuqing
研究了Q235 B钢单搭接螺栓连接件的微动疲劳寿命和失效模式。制备并测试了10个样本，以拟合S-N曲线。然后用SEM（扫描电子显微镜）观察疲劳裂纹表面，并确定裂纹萌生、裂纹扩展和瞬态断裂区。建立了有限元模型，模拟了应力场和位移场。法向接触应力，切向接触应力，和相对滑移位移在临界微动区被用来计算FFD值和评估微动疲劳裂纹萌生的网站，这是在良好的协议与SEM观察。实验结果证实了这些试样的微动疲劳失效模式。结果表明，裂纹的萌生是由于板与板接触面处的磨损区，微动疲劳裂纹发生在距孔边一定距离处。建议的FFD关系是一种替代的方法来评估微动疲劳寿命的钢板螺栓连接。
This work aims to investigate the fretting fatigue life and failure mode of steel Q235B plates in single-lap bolted joints. Ten specimens were prepared and tested to fit the S-N curve. SEM (scanning electron microscope) was then employed to observe fatigue crack surfaces and identify crack initiation, crack propagation, and transient fracture zones. Moreover, a FEM model was established to simulate the stress and displacement fields. The normal contact stress, tangential contact stress, and relative slipping displacement at the critical fretting zone were used to calculate FFD values and assess fretting fatigue crack initiation sites, which were in good agreement with SEM observations. Experimental results confirmed the fretting fatigue failure mode for these specimens. It was found that the crack initiation resulted from wear regions at the contact surfaces between plates, and fretting fatigue cracks occurred at a certain distance away from hole edges. The proposed FFD- relationship is an alternative approach to evaluate fretting fatigue life of steel plates in bolted joints.
登录
查看更多内容
影响因子：
3.2
作者：
Reza Hojjati-Talemi;M. Wahab;E. Giner;M. Sabsabi
通讯作者：
Reza Hojjati-Talemi;M. Wahab;E. Giner;M. Sabsabi
DOI：
10.1016/j.msea.2010.06.080
发表时间：
2010-09
影响因子：
6.4
作者：
A. Benhamena;A. Talha;N. Benseddiq;A. Amrouche;G. Mesmacque;M. Benguediab
通讯作者：
A. Benhamena;A. Talha;N. Benseddiq;A. Amrouche;G. Mesmacque;M. Benguediab
DOI：
10.3390/ma9030141
发表时间：
2016-02-27
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Oskouei RH;Barati MR;Ibrahim RN
通讯作者：
Ibrahim RN
影响因子：
8.4
作者：
T. Chakherlou;M. Razavi;A. B. Aghdam;B. Abazadeh
通讯作者：
T. Chakherlou;M. Razavi;A. B. Aghdam;B. Abazadeh
影响因子：
3.4
作者：
Fallahnezhad, Khosro;Steele, Andrew;Oskouei, Reza H.
通讯作者：
Oskouei, Reza H.