i-manager's Journal on Future Engineering and Technology (JFET)


Volume 13 Issue 1 August - October 2017

Research Paper

Benefits of Using Human Centred Design Methods in Industrial Design

Tom Page* , Gisli Thorsteinsson**
* Senior Lecturer, Loughborough Design School, United Kingdom.
** Professor, Department of Design and Craft Education, Iceland University of Education, Iceland.
Page, T., and Thorsteinsson, G. (2017). Benefits of Using Human Centred Design Methods in Industrial Design. i-manager’s Journal on Future Engineering and Technology, 13(1), 1-14. https://doi.org/10.26634/jfet.13.1.13757

Abstract

The aim of this paper recognised both the tangible and intangible benefits of using Human Centred Design methods (HCD) in industrial design. Implications of using and not using them were studied as well as how and why they were employed in industry. Surveys were directed towards current design professionals in global company Mondelez International Ltd. Interviews were conducted with Industrial Design final year undergraduates who had experience working in the Industrial Design industry. Results showed the main benefit for using HCD is to aid the decision-making process. Other key benefits were identified: HCD helps keep in touch with users; it prevents people designing based on preconceptions; and it reduces the need to make costly amendments to designs in the latter stages of projects. A key implication of using HCD, preventing most participants from fully integrating it within the design process, was also identified as using up valuable time and resources. The study determined that there are numerous advantages to performing HCD in the design industry. It is considered that an intelligent use of them can prevent the majority negative implications outlined, benefiting the design process through an increased understanding of the user.

Research Paper

Quasi-Static Indentation Tests on Polyurethane and Phenolic Foam Sandwich Panels

Syed Mudassir* , M. Manzoor Hussain**, D. V. Ravi Shankar***
* Research Scholar, Department of Mechanical Engineering, JNT University, Hyderabad, India.
** Professor, Department of Mechanical Engineering, JNT University, Hyderabad, India
*** Principal, TKR College of Engineering and Technology, Hyderabad, India.
Mudassir,S., Hussai, M. M., and Shankar, D.V.R. (2017). Quasi-Static Indentation Tests on Polyurethane and Phenolic Foam Sandwich Panels. i-manager’s Journal on Future Engineering and Technology, 13(1), 15-21. https://doi.org/10.26634/jfet.13.1.13758

Abstract

Mechanical response and energy absorption of polyurethane and phenolic foam sandwich composite panels subjected to quasi-static indentation loads were investigated experimentally. These sandwich panels consisted of two glass-fiber face-sheets and PU and Phenolic foam cores. Quasi-static indentation tests were conducted using an UTS-40 universal testing machine, with sandwich panels in fully fixed condition. Load-displacement curves were recorded and the total energy absorbed by sandwich panels was calculated accordingly. Photographs and video recordings were carried out to observe the deformation of top face sheets, foam cores, and bottom face-sheets. The main objective of this work was to study the energy absorption behaviour of different sandwich composite laminates under Quasi-static indentation. Load-deflection results were obtained from experimental tests using hemisphere indenter for different sandwich composite laminates. The energy absorbing capacity of sandwich laminates linearly increased with the increase in foam thickness. The effects of face-sheet thickness, core thickness, and energy absorption of sandwich panels are also discussed.

Research Paper

Development of Water Hyacinth Nonwoven Fabrics for Thermal Insulation

M. Bhuvaneshwari* , K. Sangeetha**
* Research Scholar, Department of Textiles and Apparel Design, Bharathiar University, Coimbatore, Tamil Nadu, India.
** Professor and Head, Department of Textiles and Apparel Design, Bharathiar University, Coimbatore, Tamil Nadu, India.
Bhuvaneshwari, M., and Sangeetha, K.(2017). Development of Water Hyacinth Nonwoven Fabrics for Thermal Insulatio. i-manager’s Journal on Future Engineering and Technology, 13(1), 22-29. https://doi.org/10.26634/jfet.13.1.13759

Abstract

For the past two decades researchers are working to identify and develop new natural textile fiber sources with eco-friendly manufacturing and sustainability processing. This study investigates the extraction of fibers from water hyacinth (Eichhornia crassipes) plants, its physical, mechanical, and structural properties. The water hyacinth fibers show good strength of about 220.5 g/tex and the fineness of 1.22 g/cm3 are prepared into nonwoven fabrics and their quality for textile applications is analyzed. Nonwoven fabrics are prepared by blending water hyacinth fibers with hemp fibers in three different ratios, such as 75:25, 50:50, and 25:75 for assessing their suitability. The prepared fabrics were analyzed with the effect of blend ratio of water hyacinth fibers for the physical and thermal insulation properties. The result shows that higher the proportion of water hyacinth fibers in the sample, higher the thickness and areal density, and lower the bulk density of the fabric. Further, the increase in the proportion of water hyacinth fibers decreases the thermal conductivity of the fabric and the good thermal resistivity was observed in the sample WH75/H25.

Research Paper

Importance of E-Cap Die Design for Producing Improved Hardness and Ultra Fine Grains of Aluminum Alloy-6xxx Series

Sunil Kadiyan* , Brijnandan Singh Dehiya**
* Research Scholar, Department of Materials Science and Nanotechnology, DCR University of Science and Technology,Murthal, Haryana, India.
** Associate Professor, Department of Materials Science and Nanotechnology, DCR University of Science and Technology,Murthal, Haryana, India.
Kadiyan,S., and Dehiya, B.S. (2017). Importance of E-Cap Die Design for Producing Improved Hardness and Ultra Fine Grains of Aluminum Alloy-6xxx Series. i-manager’s Journal on Future Engineering and Technology, 13(1), 30-35. https://doi.org/10.26634/jfet.13.1.13760

Abstract

The purpose of present work is to investigate the importance of 'Equal Channel Angular Pressing (E-CAP)' technique under severe plastic deformation to provide better mechanical properties and microstructure of aluminum alloy 6xxx series. The conditions for better die and plunger assembly design were experimentally found. High speed of plunger has produced bending in it, therefore, failure in E-CAP can be reduced by keeping the speed of plunger less than or equal to 1 mm/min. Route C is found most appropriate for producing large strain between passes, which can be justified by different optical microscopy images.

Research Paper

The Effectiveness of Various Cutting Fluids on the Surface Roughness of AISI 1045 Steel During Turning Operation Using Minimum Quantity Lubrication System

Milon D. Selvam* , N. M. Sivaram**
* Research Scholar, Department of Mechanical Engineering, Karpagam University, Coimbatore, India.
** Associate Professor, Department of Mechanical Engineering, Karpagam University, Coimbatore, India.
Selvam, M.D., and Sivaram, N. M. (2017). The Effectiveness of Various Cutting Fluids on the Surface Roughness of AISI 1045 Steel During Turning Operation Using Minimum Quantity Lubrication System. i-manager’s Journal on Future Engineering and Technology, 13(1), 36-43. https://doi.org/10.26634/jfet.13.1.13761

Abstract

This paper elucidates the effect of mineral oil based cutting fluid such as Servocut 'S' grade oil emulsified with water and used edible vegetable oil based cutting fluids, such as Palm Oil and Peanut Oil emulsified with water on the surface quality of AISI 1045 cylindrical steel components. The turning operation is carried out with three TiN coated carbide inserts of different nose radius on AISI 1045 steel using Minimum Quantity Lubrication system. The machining parameters, namely spindle speed, feed rate, depth of cut, tool nose radius and cutting fluids are decided for the lead of trials. The trials are designed based on Taguchi's L27(35) orthogonal array. The surface roughness of the turned samples is measured with a surface roughness analyzer and in this manner; a scientific model representing the average surface roughness is created through regression examination. The results revealed that the surface quality of the turned samples using vegetable based cutting fluids are equivalence with the components machined using mineral oil based cutting fluid.

Research Paper

Early Detection of Diabetic Foot Ulcer by Using IoT Technology

M. Aravind Kumar* , Srinivas Bachu**, I. V. Subba Reddy***
* Associate Professor, Department of Electronics and Communication Engineering, GVVIT Engineering College, Bheemavaram, Andhra Pradesh, India.
** Associate Professor, Department of Electronics and Communication Engineering, GNITC (Autonomous), Hyderabad, Telangana, India.
*** Associate Professor, Department of Physics, GITAM Deemed to be University, Hyderabad, Telangana, India.
Kumar, M.A., Bachu, S., and Reddy, I.V.S. (2017). Early Detection of Diabetic Foot Ulcer By Using IoT Technology. i-manager’s Journal on Future Engineering and Technology, 13(1), 44-48. https://doi.org/10.26634/jfet.13.1.13762

Abstract

Diabetic patients generally develop the complications of foot ulcers, breaking down of the skin tissue in the case poorly controlled diabetics. As the numbers of diabetic patient are increasing globally with the change in the lifestyle, the measures for the early detection of the diabetic related problems are gaining medical importance. Diabetic patients develop foot ulcers because of improper blood flow, loss of the sensation, and low wound healing rate. The proposed paper presents a system, which will provide readings of the hardness level at various parts of the foot. This is done by placing the person's foot above the sensing module. A predefined database comparison is made, and the shore output is posted on the internet by using IP address, and also data can be stored with the help of a micro-SD card.