Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Iman Rostamsowlat"'
Publikováno v:
Rock Mechanics and Rock Engineering. 55:7859-7880
Publikováno v:
Journal of Petroleum Science and Engineering. 171:771-783
It is generally accepted that drilling with drag bits (Polycrystalline Diamond Compact bits) simultaneously consists of “pure cutting” and “frictional contact” processes. To date, the mechanics of rock cutting have been mostly based on the as
Publikováno v:
Journal of Petroleum Science and Engineering. 208:109665
Drilling is one of the most expensive processes in the oil and gas exploration and exploitation processes which is commonly performed with polycrystalline diamond compact (PDC) fixed-cutter bits (or PDC bits as they are often referred to) due to thei
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 107:224-232
The objective of this paper is to investigate the influence of the rake angle on the magnitude of the intrinsic specific energy and the inclination of the force acting on the cutting face of a Polycrystalline Diamond Compact (PDC) sharp cutter while
Publikováno v:
Acta Geotechnica. 14:519-534
A vast majority of experimental researches focuses on the cutting action of a sharp cutter, while there has been limited experimental work devoted to the study of the contact process at the wear flat-rock interface. The specific objective of this stu
Autor:
Iman Rostamsowlat
Publikováno v:
Rock Mechanics and Rock Engineering. 51:1715-1728
The current paper is designed to investigate the effect of worn (blunt) polycrystalline diamond compact cutter properties on both the contact stress ( $$\sigma$$ ) and friction coefficient (μ) mobilized at the wear flat–rock interface at different
Autor:
Iman Rostamsowlat, Maziar Janghorban
Publikováno v:
Chinese Journal of Mechanical Engineering. 25:277-284
Cutouts are inevitable in structures due to practical consideration. In order to investigate the free vibration of functionally graded plates with multiple circular and non-circular cutouts, finite element method is used. The volume fraction of the m
Publikováno v:
Journal of the Serbian Chemical Society, Vol 77, Iss 7, Pp 945-957 (2012)
In this study, time dependent exergy analysis of the Fars Combined Power Plant Cycle has been investigated. Exergy analysis has been used for investigating each part of actual combined cycle by considering irreversibility from Apr 2006 to Oct 2010. P
Publikováno v:
Volume 9: Mechanics of Solids, Structures and Fluids.
In this paper, effects of friction coefficient and tool geometry on the thickness variations of a cylindrical cup were studied. Blank is made of SPXI250 alloy sheet which was analyzed by Finite Element Method (FEM). This not been studied yet. Finite