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Design and Analysis of Natural Fibre Reinforced Epoxy Composites for Automobile Hood

SRM Institute Of Science And Technology-Akhil Kumar Guduru, V N B Prasad Sodisetty, Vidya Prudhvi Sai Katari
  • Technical Paper
  • 2019-28-0086
To be published on 2019-10-11 by SAE International in United States
The need for eco-friendly materials is recently increasing in the automobile and aerospace sectors. Material selection for automobile components is influenced by various factors such as cost, weight and strength. Natural fibers offers various advantages over conventional materials such as environmental friendly, easily available, recyclable and higher specific strength. Among the natural fibers Sisal and Kenaf fibers are selected for present study due to their good mechanical properties and availability. Kenaf fibers have great potential to be used as construction and automotive materials due to their long fibers which are derived from the bast. Sisal fibers do not absorb moisture and posses good impact, sound absorbing properties and high fire resistance properties. Epoxy LY556 is selected as matrix material to bind the combination of these two natural fibers due to its high temperature resistance and adherence to reinforcements. Alkaline treatment was carried out to remove the moisture from the natural fibers. Fabrication of epoxy/Kenaf fibre/Sisal Fibre composite materials of different stacking sequence was carried out by Vacuum Assisted Resin Transfer Molding (VARTM) method. These composites…

Design Analysis and Simulations of Components of an All-Terrain Vehicle

BITS Pilani-Pranjal Shukla, Konark Joshi, Utkarsh Rastogi, Ajith Reddy Moola
  • Technical Paper
  • 2019-28-0049
To be published on 2019-10-11 by SAE International in United States
A single seater All Terrain Vehicle (ATV) is conceptualized in this research paper which covers the extent of design and simulations ranging from static structural, fatigue analysis, explicit dynamics etc. Solidworks and Ansys Workbench have been used as the tools for the simulation. The aim of this research was to design and fabricate a vehicle which is light weight (<200Kgs), easily manoeuvrable in harsh driving conditions and also scores high in affordability and maintenance. This paper also discusses the design consideration of the chassis, steering, suspension, braking, powertrain. Simulation results of components like hubs, knuckles, A-Arms, chassis are done with special focus on modelling based on real time forces and behaviours. MATLAB Simulink models are used and explained for the suspension & powertrain model. The vehicle was fabricated in-house using various fabrication methods of TIG Welding, Vertical CNC machines etc. The strength tests for the specimens of welding were checked for the safety of the chassis. On-track testing was for braking, steering and acceleration was done and further modifications were made in the design.

Mechanical and corrosion behaviour of 7075 aluminium matrix composite reinforced with TiC and Al2O3

Vellore Institute of Technology-Subham Jaiswal, Govindasamy Rajamurugan, Prabu Krishnasamy, Yashwardhan Shaswat, Mishra Kaushik
  • Technical Paper
  • 2019-28-0094
To be published on 2019-10-11 by SAE International in United States
Various research regarding new methods of fabrication and modifications of Aluminium alloy to improve the existing properties are going on. The wide application of aluminium in aerospace and automobile Industry, demands improved mechanical properties with little to zero increment in weight. This work is based on the fabrication of hybrid metal matrix composites of 7075 aluminium alloy with the addition of TiC (Titanium Carbide) and Al2O3(Aluminium Oxide) reinforcements is fabricated using stir casting technique. Weight percentage of 5%, Al2O3 8% and Tic 12%, Tic 15% and Al2O3 10%. Samples are prepared for each mass distribution . Varying weight fraction samples are prepared to have a proper comparative study of the mechanical properties. In the fabrication we gradually increased the weight of TiC and Al2O3 as we progressed with the experiment.. The objective is to have a clear idea of mechanical properties variation with variation in reinforcement. Hardness tests is done using optical Brinell Hardness Testing machine . A proper characterisation of the samples was attained by using advanced electron microscopes. Tensile properties of the samples…

Characterization of Areca and Tamarind fiber reinforced hybrid polymer composites for structural applications

Sree Vidyanikethan Engineering College-Binoj Joseph Selvi, Manikandan Natarajan, Bhanu Prakash Palampalle
  • Technical Paper
  • 2019-28-0168
To be published on 2019-10-11 by SAE International in United States
In recent years, natural fibers reinforced composites are used in various engineering arenas owing to its specific rewards like biodegradable, low cost, readily available, easy processing, less toxic and eco-friendly physiognomies. However, the commonly used E-glass fiber polymer composite was just inverse to the properties of the reported natural fibers. Therefore, in the present work discarded areca and tamarind fibers was collected, extracted, fabricated and evaluated for its overall performance and to implement it as an alternative for synthetic fiber composites. Composite specimens are fabricated with different proportions of fiber/matrix and investigated for their potentiality by exploring its mechanical, physical, chemical, water absorption and thermal properties as per standard test procedures. Moreover, the obtained areca and tamarind hybrid composite results are better than their individual based composites and in par with the existing synthetic fiber products. In addition, the fractography study of the fractured composite specimens are examined using Scanning Electron Microscope (SEM) for inspecting the failure of the material. Hence, the tested results shown that the fabricated hybrid composites exhibits better specific properties and…

Torsional Stiffness Analysis Of Tubular Space-frame Chassis

SRM Institute of Science and Technology-Venkata Naga Bhavani Prasad Sodisetty, Anurag Pandey, Devansh Balachandran Iyer, Navneet Kumar
  • Technical Paper
  • 2019-28-0033
To be published on 2019-10-11 by SAE International in United States
Torsional Stiffness is required in an automotive when there is a lateral load transfer as it happens during turning. It also occurs when there is bump on one side of a chassis while droop on the other. A torsionally stiff chassis would provide better stability and uniform load transfer in an automotive. The lateral members in a chassis play a crucial role in increasing the torsional stiffness but they result in increased weight. The relation between mass and structural stiffness of a chassis is crucial to optimize the dynamics of an automotive. The current trends in research aim at increasing the torsional stiffness and optimizing mass for the same and thus increasing the stiffness to mass ratio. This is validated with the help of various FEA softwares. The different cases involved in real world scenario are simulated and then the stiffness is optimized accordingly. This FEA analysis is further validated using experimental analysis. An experimental jig is fabricated and setup for every condition. Static conditions are used for both FEA and experimental analysis. A list…

Fabrication and machinability study of Al2219 metal matrix composites reinforced with SiN/MoS2 nanoparticles

Sri Sairam Engineering College-Vetri Velmurugan Kannan
Vellore Institute of Technology-Venkatesan Kannan, Devendiran Sundararajan, Akshay Seth, Navya Sood, Aditya Babu
  • Technical Paper
  • 2019-28-0170
To be published on 2019-10-11 by SAE International in United States
Composites materials are substituting constituents for traditional materials due to their remarkable properties, and the addition of nanoparticles gives a new development in the material domain. The nanoparticles influence on fabrication and machinability investigation study is essential as the composites to be used in applications like automotive and aerospace. The current study investigates the machinability characteristics of Al2219 based metal composites reinforced with nanoparticles of SiN/MoS2. Al2219- reinforcements (SiN and MoS2) composites are fabricated by the method of stir casting. Four different compositions (Al2219/SiN (2 wt% and 4 wt%), , Al2219/2 wt.% SiN/ 2 wt.% MoS2, Al2219/2 wt.% MoS2) are fabricated by varying the different weight percentages of nanoparticles reinforcements. An attempt is made to study the investigation analysis of force, surface roughness, and tool wear using CNC machine lathe to consider the effect of cutting speed, cutting depth and samples. The machinability test is carried out, and the performance is compared. Addition of 2 wt% of SiN in Al2219 is to increase the hardness of nearly about 21%, 14%, 40% compared to that of…

Investigations on Dimensional Analysis of Fused Filament Fabrication of Wax Filament by Taguchi Design

Vellore Institute of Technology-Aditya Chandrakant Yadav, Nattudurai Navin Kumar, Kumar Raja, Chooriyaparambil Damodaran Naiju
  • Technical Paper
  • 2019-28-0133
To be published on 2019-10-11 by SAE International in United States
Experimental investigations were carried out on machinable wax filament using FDM 3D printing process. The printer used for conducting the experiments was Flash Forge guider 2. The filament material used for this study was machinable wax filament of 1.75 mm diameter. Experimental trials were carried out as per Taguchi L9 orthogonal array to determine optimum process parameter combination. The dimensional analysis of test samples were carried out in terms of change in volume of samples which is result of combine effect of deviations in all dimensions of test sample. Four factors each at three levels was used to obtain optimum printing parameters for better dimensional accuracy and proper printing. The four important printing parameters were taken as factor and set to analyze the significant factor affecting on printing. The complexity in printing of wax filament is taken in to consideration during the experimental study. The main effect plot for S/N ratio was plotted and ANOVA was carried out to determine the significant factor that was affecting dimensional accuracy of t printed test samples. The results…

Study of Mechanical Properties of Similar and Dissimilar Metals of Monel 400 and SS 321by using Gas Tungsten Arc Welding (GTAW) Process

Geethanjali College of Engg. and Tech.-Sudarshan Rikka, Devaiah Malkapuram
  • Technical Paper
  • 2019-28-0141
To be published on 2019-10-11 by SAE International in United States
ABSTRACT In the present study the fabrication of joints between the nickel base alloys and steels of various grades have been under taken, joining of these metals has assumed new importance by virtue of their widespread in nuclear and aerospace applications. Such joints provide excellent strength, oxidation and corrosion resistance. This paper deals with the study of weldability, and mechanical properties of weld joints of two different alloys such as nickel based alloy- monel 400 and austenitic stainless steel AISI 321. The joining of the similar and dissimilar metals is carried out by GTAW process by employing two different types of filler rods such as SS321 and ERNiCrMo-3. Mechanical properties such as Ultimate tensile strength, Young’s Modulus are found as per ASTM testing standards, percentage of elongation aslso found to know the joint efficiency and Microhardness survey across the weld joint to estimate the hardness variations at different locations such as Weld zone of the matel, Heat Affected Zone (HAZ), and Base metal. Key Words: GTAW process, UTS, Hardness, Nickel based alloy - monel 400…

Development and Investigation of Jute/Linen fibre Reinforced polymer composite.

BSA Crescent Institute of Science & Technology-Arvinda Pandian, Siddhi Jailani
  • Technical Paper
  • 2019-28-0171
To be published on 2019-10-11 by SAE International in United States
In this paper, hybrid composite with natural fabrics reinforcements and with mineral powder as filler to matrix material is developed. The hand lay-up methodology is employed to fabricate the composite. The composites with and without mineral filler material are developed. The mechanical properties of the composites are assessed. The mechanical properties of composites with and without mineral filler are compared and their result shows that with addition of filler material, the mechanical properties of the composite are affected. Optical microscope is utilized to observe the composite’s morphology.

Building Multiple Resolution Modeling Systems Using the High-Level Architecture

Univ. of Central Florida-Mario Marin, Kyungeun Lee, Edgar Gutierrez, Luis Rabelo
University of Central Florida-Gene Lee, JAEHO KIM
  • Technical Paper
  • 2019-01-1917
To be published on 2019-09-16 by SAE International in United States
The modeling and simulation pyramid in defense states it clearly: Multi-Level modeling and simulation are required. Models and simulations are often classified by the US Department of Defense into four levels—campaign, mission, engagement, and engineering. Campaign simulation models are applied for evaluation; mission-level simulations to experiment with the integration of several macro agents; engagement simulations in engineered systems development; and engineering-level simulation models with a solid foundation in structural physics and components. Models operating at one level must be able to interact with models at another level. Therefore, the cure (“silver bullet”) is very clear: a comprehensive framework for Multiple Resolution Modeling (MRM) is needed. In this paper, we discuss our research about how to construct MRM environments. Also, the utilization of the High-Level Architecture (HLA) is explained and in particular, the processes of verification and validation in these composite models. Three implementations in the areas of aerospace, navy ships, and infantry combat are utilized to illustrate the MRM simulation concepts.