Zobrazeno 1 - 10
of 58
pro vyhledávání: '"V. M. Radhakrishnan"'
Publikováno v:
Astronomy & Astrophysics. 670:A137
Context. The focal-plane contrast of exoplanet imagers is affected by non-common path aberrations (NCPAs) that the adaptive optics system cannot correct for because they occur after the wavefront has been measured. NCPA estimation is commonly based o
Autor:
M. Kamaraj, V. M. Radhakrishnan
Publikováno v:
Journal of Thermal Spray Technology. 28:756-768
Cold spraying is a coating technology where the temperatures of the sprayed particles are kept low (below 1000 °C), and compensated by high impact velocity (300–1400 m/s). Although many particle and substrate variables are important under cold spr
Autor:
M. Kamaraj, V. M. Radhakrishnan
Publikováno v:
Transactions of the Indian Institute of Metals. 70:2485-2496
Nickel based single crystal super alloys are widely used as aircraft engine blades and are still in the process of development to improve the high temperature capabilities. The typical microstructure of these alloys consists of gamma phase as the mat
Autor:
Prathap Haridoss, V. M. Radhakrishnan
Publikováno v:
International Journal of Hydrogen Energy. 36:14823-14828
Improving reactant distribution is an important technological challenge in the design of a PEMFC. Flow field and the Gas Diffusion Layer (GDL) distribute the reactant over the catalyst area in a cell. Hence it is necessary to consider flow field and
Autor:
Prathap Haridoss, V. M. Radhakrishnan
Publikováno v:
Materials & Design. 32:861-868
Gas diffusion media (GDM) and flow fields perform the task of distributing the reactant gases uniformly over the active electrochemical area in proton exchange membrane (PEM) fuel cells. Carbon paper and carbon cloth are two commonly employed gas dif
Publikováno v:
Journal of Materials Engineering and Performance. 13:493-503
Uniaxial creep deformation of a columnar-grained cast Ni-based superalloy has been analyzed in the temperature range of 1035-1315 K. Two-stage heat treatment of the material resulted in an average γ′ particle size of 0.4 µm and inter-particle dis
Autor:
V. M. Radhakrishnan
Publikováno v:
Defence Science Journal. 54:31-38
Cracks present in machine parts affect their vibrational behaviour like the fundamental frequency and the resonance. In this paper, the resonance response of a cracked cantilever rectangular beam has been studied based on fracture mechanics quantitie
Publikováno v:
Materials & Design. 23:249-254
In low cycle fatigue of metallic materials, the Manson–Coffin and Basquin relations are considered to be in conjunction with the cyclic stress–strain curve. Design considerations under constant load range or constant total displacement range are
Autor:
V. M. Radhakrishnan
Publikováno v:
Journal of Materials Engineering and Performance. 10:656-661
The fracture toughness relation (FTR) in biaxial loading of a body containing a slanting crack has been analyzed. A basic requirement for the validity of the FTR is discussed. A criterion based on the energy release rate in each mode is presented and
Autor:
V M Radhakrishnan
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 214:229-232
Many studies have been carried out to relate KI and KII at fracture in biaxial loading. In the present investigation, the Mohr type of stress intensity factor (SIF) circles in uniaxial and pure shear type of loading are presented and discussed for th