combined stress state
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2020 ◽  
Vol 240 ◽  
pp. 107347
Author(s):  
Xueli Wang ◽  
Fuguo Li ◽  
Yulin Zhou ◽  
Tarek Khelfa ◽  
Bang Liu ◽  
...  


2019 ◽  
Vol 973 ◽  
pp. 61-64
Author(s):  
Nikolay V. Polezhaev ◽  
Maksim D. Khoroshevskiy ◽  
Mark G. Kristal ◽  
Vladimir V. Preis

A new mathematical model is proposed where breaking down of exploited drilling bits is considered to be a consequence of an unbalanced spreading of charges in drilling bit body, which is caused by the difference in interference values of obstruction in each pair “body-pick”. Fulfilled modeling allow to make a definition of complicated stress-deformed state of the drilling collet’ body with different number of teeth and different combinations of hole sizes and sizes of teeth using different materials for further production.



2011 ◽  
Vol 2011.49 (0) ◽  
pp. 451-452
Author(s):  
Daisuke HINO ◽  
Yuichi ONO ◽  
Cheng LI ◽  
Shinya ISHIHARA


2010 ◽  
Vol 2010.48 (0) ◽  
pp. 43-44
Author(s):  
Yuichi ONO ◽  
Cheng LI ◽  
Daisuke HINO ◽  
Shinya ISHIHARA


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