Browsing Khairul Azwan Ismail, Associate Professor Dr. by Issue Date
Now showing items 1-20 of 22
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Experimental modal analysis of a golf clubface: Investigation of trampoline effect
(Vibromechanika, 2010-12)A complete modal analysis of a golf clubface has been presented in order to investigate the 'trampoline effect'. The availability of titanium golf drivers with thin, flexible faces opens up the opportunity to design the ... -
Effect of NaVO3 concentration on corrosion resistance of conversion coating on AZ91D magnesium alloy
(Trans Tech Publications, 2012)Anticorrosive oxide films were successfully prepared on AZ91D magnesium alloy by chemical conversion coating in La (NO3)3 electrolytes with and without NaVO3. The morphologies and chemical composition were characterized ... -
Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy
(Trans Tech Publications, 2012)Anodization is a useful technique for forming protective films on magnesium alloys and improves its corrosion resistance. Based on the rare earth metal (REE) salt solution, the optimum parameter was selected by comparing ... -
Improvement of Corrosion Resistance of Rare Earth Element (REE)-Based Anodic Oxidation Coating on AZ91D Magnesium Alloy
(Scientific.net, 2012-06-26)Anodization is a useful technique for forming protective films on magnesium alloys and improves its corrosion resistance. Based on the rare earth metal (REE) salt solution, the optimum parameter was selected by comparing ... -
Coefficient of restitution of sports balls: A normal drop test
(IOP Publishing Ltd., 2012-12-05)Dynamic behaviour of bodies during impact is investigated through impact experiment, the simplest being a normal drop test. Normally, a drop test impact experiment involves measurement of kinematic data; this includes ... -
Convergence of finite element model for crushing of a conical thin-walled tube
(Elsevier B.V., 2013)In this paper, a convergence of finite element model using different types and sizes of mesh modes has been conducted. A thin-walled conical tube was modeled using plane shell element in LS-DYNA software under dynamic axial ... -
Effect of heat treatment on microstructure and corrosion behavior of Az91d magnesium alloy
(Trans Tech Publications, 2013)An AZ91D ingot in the as-cast condition was homogenized by heat treatment process. Then, the microstructures produced and corrosion behaviour after heat treatment was studied in detail. As-cast AZ91D was recrystallize by ... -
Strength of the weld line and warpage defects on the molded parts in injection molding process
(Praise Worthy Prize S.r.l., 2013)Strength at weld the line location and warpage problem in injection molding plastic component were not new problems in injection molding industries. Many researchers had emerged with several improvement techniques to reduce ... -
An experimental and numerical analysis of empty and foam-filled aluminium conical tubes under oblique impact loading
(Trans Tech Publications, 2013)This paper presents the crushing behaviour of empty and foam-filled conical aluminium alloy (AA6061-T6) tubes under oblique impact loading using a validated nonlinear finite element (FE) code, LS-DYNA. The study aims to ... -
Mathematical models for productivity and availability of automated lines
(Springer-Verlag London Limited., 2013-04)The basic attributes of any industrial machine are productivity rate, quality of products, as well as the cost and flexibility of manufacturing systems. Attributes of productivity are related to the theory of reliability, ... -
Comparison between single and multi gates for minimization of warpage using taguchi method in injection molding process for ABS material
(Trans Tech Publications, 2013-12)In this study, a mold is designed in single and dual type of gate in order to investigate the deflection of warpage for thick component in injection molding process. Autodesk Moldflow Insight software was used as a medium ... -
Experimental and numerical analysis of foam-filled aluminum conical tubes subjected to oblique impact loading
(Carl Hanser Verlag GmbH & Co. KG., 2014)This study aims to investigate the response of AA6061-T6 conical tubes under oblique impact loading, for variations in filler density and tube material by using experimentally validated model. Good correlations between the ... -
Modeling and numerical simulation for the newly designed four cavity blades vertical axis wind turbine
(Trans Tech Publications, 2014)The last years have proved that Vertical Axis Wind Turbines (VAWTs) are more suitable for urban areas than Horizontal Axis Wind Turbines (HAWTs). To date, very little has been published in this area to assess good performance ... -
The effect of room temperature on the generator’s winding coils temperature
(Trans Tech Publications, 2014)Thermal modeling is a method used to formulate a temperature profile for a generator. The most common types of thermal model used by researchers are transient and steady-state model. There is insufficient of information ... -
A new approach to reduce the thermal modeling experiment time by estimating the settling time
(Trans Tech Publications, 2014)In order to develop a thermal model for a generator or a motor, several experiments need to be conducted. One of the challenges in conducting the experiment is that it consumes a lot of time to reach its steady state ... -
Dynamic axial crushing of empty and foam-filled conical aluminium tubes: Experimental and numerical analysis
(Trans Tech Publications, 2014-09)This paper presents the crushing behaviour of empty and foam-filled conical tubes under axial dynamic loading. A nonlinear finite element (FE) model was developed and validated against experiments. The validated model was ... -
Effect of filler on the impact characteristics of aluminium tubes
(Taylor & Francis, 2014-12-18)This paper presents the behaviour of empty and foam-filled aluminium alloy (AA6061-T6) tubes under dynamic axial loading. The influence of geometrical and various densities of fillers was investigated by employing a finite ... -
Pressure distribution from two different types of fabrics head garments with Silon-LTS® face mask for hypertrophic burn scar treatment
(Institute of Electrical and Electronics Engineers (IEEE), 2015-09-01)This study measures and analyses pressure generated from the two different fabrics used as head garments with a face mask made from Silon-LTS® (Low Temperature Splinting) underneath the head garment. A pressure sensor was ... -
Application of RSM to optimise moulding conditions for minimizing shrinkage in thermoplastic processing
(Trans Tech Publications Ltd, 2016)This study focuses on the analysis of plastic injection moulding process simulation using Autodesk Moldflow Insight (AMI) software in order to minimize shrinkage by optimizing the process parameters. Two types of gates ... -
A new invention method to determine the reduction factor for low fabric tension properties for head garment fabrication
(EDP Sciences, 2016)This paper proposes a new method to determine the reduction factor for producing a head garment with specified targeted pressure output. Pressure garment fabric mostly supplied to the local hospitals with no information ...