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Now showing items 1-20 of 137

Evaluation of cumulative damage in glass fibre reinforced plastic by ultrasonic method

Srivastava, V.K.; Prakash, R. (Springer India, 1987-03)

This paper presents the cumulative damage in glass fibre reinforced plastic composite during loading and unloading at regular intervals using the continuous monitoring of ultrasonic test instrument. The result shows that ...
Fatigue life of E-glass fibre/zirconia/epoxy hybrid composites

Srivastava, V.K. (Springer India, 1988-05)

An ultrasonic technique has been used to evaluate the degradated fatigue life of glass fibre/zirconia hybrid composites in different concentrations of sodium chloride and sulphuric acid. Results indicate that reduction in ...
Effects of Longitudinal Vibration on Hardness of the Weldments

Tewari, S.P.; Shanker, A. (1994)

The paper pertains to the effects of longitudinal vibration, frequency and amplitude on hardness of the weldments prepared by metal arc welding under dynamic conditions. The frequency range was 0 to 400 Hz and amplitude ...
Effects of transverse oscillation on tensile properties of mild steel weldments

Tewari, S.P. (Iron & Steel Inst of Japan, 1999)

In this paper an attempt has been made to study the effects of frequency and amplitude of transverse oscillation on yield strength, ultimate tensile strength, breaking strength and percentage of elongation of weldments. ...
Effects of oscillation on impact property of weldments

Tewari, S.P. (Iron & Steel Inst of Japan, 1999)

The present paper deals with the effects of oscillation on impact property of mild steel weldments. Mild steel plates were welded at different frequencies and amplitudes of longitudinal and transverse oscillation. Frequencies ...
DYNAMIC ANALYSIS OF BANANA FIBER REINFORCED HIGH-DENSITY POLYETHYLENE/POLY ( -CAPROLACTONE) COMPOSITES

RAGHVENDRA KUMAR MISRA; SANDEEP KUMAR; KUMAR SANDEEP; ASHOK MISRA (Mathematical Sciences Publishers, 2008)

Banana fiber reinforced HDPE/PCL (high-density polyethylene/poly (ε-caprolactone)) composites have been prepared in the laboratory for the evaluation of mechanical properties. The tensile strength and Young's modulus of ...
Analytical thermal modelling of double slope solar still by using inner glass cover temperature

Shukla, S.K.; Rai, A.K. (2008)

In this paper, expressions for water and glass temperatures, hourly yield and instantaneous efficiency for double slope solar distillation systems have been derived analytically. The analysis is based on the basic energy ...
Integrated gas dynamic and thermodynamic computational modeling of multicylinder 4-stroke spark ignition engine using gasoline as a fuel

Tirkey, J.V.; Gupta, H.N.; Shukla, S.K. (2009)

This paper presents a computational tool for the evaluation of engine performance and exhaust emissions for four stroke multi-cylinder spark ignition engine which uses gasoline as a fuel. Gas dynamics flow in multi-cylinder ...
Experimental investigation of transcritical CO2 heat pump for simultaneous water cooling and heating

Sarkar, J.; Bhattacharyya, S.; Ramgopal, M. (2010)

This paper presents the experimental performances of a transcritical CO2 heat pump prototype for simultaneous water cooling and heating applications. System behavior and performances such as cooling capacity, heating ...
Operating characteristics of transcritical CO2 heat pump for simultaneous water cooling and heating

Sarkar, J.; Bhattacharyya, S. (Polish Academy of Sciences, 2012)

The effects of water-side operating conditions (mass flow rates and inlet temperatures) of both evaporator and gas cooler on the experimental as well as simulated performances (cooling and heating capacities, system ...
Dynamic Analysis of Shear Flows over a Porous Medium in a Cylindrical Tube

Dwivedi, J. P.; Singh, V. P.; Lal, Radha Krishna (SAGE, 2013-07-08)

Dynamic responses of a viscous fluid flow introduced under a time dependent pressure gradient in a rigid cylindrical tube subject to deformable porous surface layer have been investigated. The coupling effect of the fluid ...
Springback Analysis in Sheet Metal Forming Using Modified Ludwik Stress-Strain Relation

Patel, Sanjay Kumar; Lal, Radha Krishna; Dwivedi, J. P.; and et al. (Hindawi Publishing Corporation, 2013-07-17)

This paper deals with the springback analysis in sheet metal forming using modified Ludwik stress-strain relation. Using the deformation theory of plasticity, formulation of the problem and spring back ratio is derived ...
MODELLINGOFSOLARDISTILLATIONSYSTEM WITHPHASECHANGEMATERIALSTORAGEMEDIUM

AL-HAMADAN, Ali A. F.; SHUKLA, Shailendra K. (Serbian Society of Heat Transfer Engineers, 2014)

An experimental investigation on a passive solar still with myristic acid as phase change material is carried out to examine the effect of both the mass of phase change material and basin water on the daily distillate ...
DYNAMIC RESPONSE OF TWIN LINED SHELLS DUE TO INCIDENT SEISMIC WAVES

DWIVEDI, J. P.; SINGH, V. P.; LAL, RADHA KRISHNA (Mathematical Sciences Publishers, 2014-03)

The dynamic interaction of the twin shells subjected to seismic waves is investigated numerically. It is found that the three-dimensional response of twin shells may differ significantly from the two-dimensional response, ...
PERFORMANCE IMPROVEMENT OF DOUBLE-TUBE GAS COOLER IN CO2 REFRIGERATION SYSTEM USING NANOFLUIDS

Sarkar, Jahar (Serbian Society of Heat Transfer Engineers, 2015)

The theoretical analyses of the double-tube gas cooler in transcritical carbon dioxide refrigeration cycle have been performed to study the performance improvement of gas cooler as well as CO2 cycle using Al2O3, TiO2, CuO, ...
A Review of Research and Policy on Using Different Biodiesel oils as Fuel for C.I. Engine

Kumar, Ajeet; Shukla, S.K.; Tierkey, J.V. (Elsevier Ltd, 2015-12-17)

The increasing demand of energy for rapid industrialization and domestic needs are putting an additional pressure on existing conventional energy sources. These are already producing more hazardous emissions into the ...
Tribological behaviour of C/C–SiC composites—A review

Kumar, Parshant; Srivastava, V. K. (Tsinghua University Press, 2016-03-01)

Ceramic matrix composites made of carbon fibres and carbon matrix (C/C) are generally used for aircraft structures and brake discs due to their low density, and good thermal, mechanical, and tribological properties. Silicon ...
Experimental investigation and modelling on air layer formation around a rotating grinding wheel

Majumdar, Sujit; Banerjee, Ahin; Das, Santanu; Chakroborty, Samik (Cogent OA, 2016-05-31)

Impingement of grinding fluid deep into grinding zone is a challenge due to presence of air layer around the grinding wheel. This paper presents experimental observation on air boundary layer formed around a rotating ...
Weibull Analysis of H-451 Nuclear-Grade Graphite

Shah, Saumya; Panda, S.K.; Khan, D. (Elsevier Ltd, 2016-12)

This paper presents the estimation of Weibull parameters by Least Square Method and Maximum Likelihood Method. Experimental data of H-451 nuclear-grade graphite have been taken for evaluation. A computer program has been ...
Performance characteristics of low global warming potential R134a alternative refrigerants in ejector-expansion refrigeration system

Mishra, Shubham; Sarkar, Jahar (Polish Academy of Sciences, 2016-12-01)

Performance assessment of ejector-expansion vapor compression refrigeration system with eco-friendly R134a alternative refrigerants (R152a, R1234yf, R600a, R600, R290, R161, R32, and propylene) is presented for air-conditioning ...

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