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Mechanical Property Evaluation of Paper Honeycomb reinforced Plastics

Hyundai Motor India Engineering PVT LTD-Vignesh balaji S G, Pradeep S, Aakash S K
  • Technical Paper
  • 2019-28-2538
To be published on 2019-11-21 by SAE International in United States
Mechanical Property Evaluation of Paper Honeycomb Reinforced Plastics Vignesh Balaji S G, Pradeep Hyundai Motor India Engineering Pvt. Ltd, Chennai. India Key Words: Paper Honeycomb, Epoxy Composites, Mechanical Properties, Tensile, Impact & Flexural Test Research and/or Engineering Questions/Objective : Composite Materials are widely being used in many engineering applications because of their desirable properties & Cost, Weight Effectiveness. They are widely being used as their Strength-Weight Ratio is Higher than any Other Material. Paper Honeycomb Material is basically a paper made of honeycomb shapes enforced between layers of Glass Mat. This paper deals with the evaluation of Tensile Strength, Flexural (Three-Point Bending) Strength & Flexural Modulus, Impact Strength of Paper Honeycomb Reinforced Epoxy Composites. The Scope of this Material defines the quality of Paper Honeycomb Reinforced Composites which can be used for Automotive Trim Parts. Methodology: Before beginning the tests, the specimens should be prepared and the steps for the preparation of paper honeycomb reinforced epoxy composites are shown below: 1. Mould Preparation 2. Mixing of Epoxy and Hardener with a ratio of 10:1 3.…
 

Study on effect of HVAC Air Flow Distribution on Windows Fogging

Hyundai Motor India Engineering-Santhosha Vigneshwaran, Eeshan Geel, G Sundrasekaran
  • Technical Paper
  • 2019-28-2414
To be published on 2019-11-21 by SAE International in United States
Windshield & Windows fogging up in cars has long been a topic of interest & concern. Lot of research has already been put into Front/Rear windshield fogging up issue and, Defrosters, Heated Windshields have been designed to remove the fog effectively. However, Windows Fogging up is still one of the major concerns faced while driving, as it obscures the drivers' field of vision and raises safety concerns. Windows fogging up is a phenomenon in which Moisture is condensed on the glass of the window. It is classified into two categories - Inside Fogging and Outside Fogging. When Ambient temperature is lower than the cabin temperature, the moisture is condensed on the inside surface of the glass. In this case the moisture is added inside the cabin by the occupants when they exhale air. Similarly when the Cabin temperature is lower than the ambient temperature, the moisture from atmosphere is condensed on the outer surface of the glass. A Survey with 500 Indian Customers has been conducted to understand the occurrence of Windows fog up issue…
 

Optimization of RF magnetron sputtering parameters for deposition of Zinc Oxide semiconductor film at 100ᵒC

Gwangju Institute of Science and Technology-Seong-Ju Park
PRIST-Amutha Surabi Muthukarappan
  • Technical Paper
  • 2019-28-0150
To be published on 2019-10-11 by SAE International in United States
Zinc oxide semiconductor thin films are deposited on glass substrate at different RF magnetron sputtering parameters. The deposited films were characterized as a function of deposition rate, gas flow ratio, working pressure and RF power. Field emission scanning electron microscopy, X-ray diffraction and hall measurement were utilized to analyze the effect of the deposition condition on the surface morphology, structure and electrical properties of ZnO thin films. The deposition conditions were optimized to give good quality films suitable for the application of flexible flat panel display. All the films were deposited at low temperature of 100ᵒC.
 

Analogy of thermal properties of polyamide 6 reinforced with glass fiber and glass beads through FDM process

Sri Krishna College of Engg and Tech.-Soundararajan Ranganathan, Hari Nishok Rangasamy Suguna Thangaraj, Aravind Kumar Vasudevan, Dharshan Karthick Shanmugan
  • Technical Paper
  • 2019-28-0137
To be published on 2019-10-11 by SAE International in United States
The essential target of this examination is to compare the thermal properties of two different polyamide composite blends with inventive thermal properties. The two combination of specimen was prepared by using polyamide-6 (PA6) reinforced with 10, 20 and 30 wt% glass fiber (GF) and glass beads (GB) respectively and these composite blends were extruded in form of wire through twin screw extrusion process. The experimental study illustrates to print the specimens by means of a commercial FDM three dimensional (3D) printer. The measure the responses like morphology, thermal conductivity and heat distortion temperature of composites was observed. The results associate that SEM morphology shows high dense homogeneous distribution and fine arrangement of particles in the printed samples. Moreover it reveals that increasing thermal properties of the printed specimen like TC and HDT with the enhancement of 30% glass fiber and bead content in PA6 composites than lower weight percentage composites. The glass fibers are highly crystalline material that can even improve the thermal properties of the polymer matrix and the glass beads are dimensionally stable…
 

Natural and artificial weathering of automotive leather, leatherette and textile

Mahindra & Mahindra, Ltd.-Elavarasan Palaniappan
  • Technical Paper
  • 2019-28-0091
To be published on 2019-10-11 by SAE International in United States
This paper presents the natural and artificial weathering behavior of leather, leatherette and textiles used for automotive seat applications. The objective of this study was to understand the UV resistance under periodic intervals and to understand the natural to artificial weathering correlation. The natural weathering under glass exposure was carried out as per ASTM G 24 and artificial weathering as per SAE J2412. The material was observed for color retention, texture retention, flexibility retention and any other changes in the construction. The natural weathering data for every 15 days were recorded, and artificial weathering for every 150 hours were recorded. Light and dark color materials were tested to understand the effect of color and UV light resistance as well as various textures were studied to understand the effect of various texture and texture retention under UV. The study was also carried out at two different period in a year and the data were recorded. The weathering of leather, leatherette and textiles exposed at different time showed different degradation behavior. Further the UV resistance of leatherette…
 
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Tuning Material Color and Thermal Properties Separately

  • Magazine Article
  • TBMG-34898
Published 2019-08-01 by Tech Briefs Media Group in United States

The color of a material can often tell how it handles heat. With clothing, for example, the darker the pigment, the warmer you're likely to feel on a hot day. Likewise, the more transparent a glass window, the more heat it can let through. A material's responses to visible and infrared radiation are often naturally linked.

 

Test Method for Measuring Wet Color Transfer Characteristics

Textile and Flexible Plastics Committee
  • Ground Vehicle Standard
  • J1326_201906
  • Current
Published 2019-06-25 by SAE International in United States
This procedure describes a method of measuring the resistance to wet color transfer of materials such as textiles, leather, and composites.
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Separating-Reattaching Flows Over an Iced Airfoil

Diakon Solutions LLC-Ezgi Oztekin
Federal Aviation Administration (FAA)-James Riley
Published 2019-06-10 by SAE International in United States
Delayed Detached Eddy Simulations (DDES) of separating-reattaching flows on the suction side of an ice-contaminated airfoil were conducted. A single-section straight-wing NACA23012 airfoil with leading-edge ice was studied. The geometry represents a realistic glaze horn-ice contamination obtained during the icing test campaigns described in [1], which has aerodynamic data for comparison. The three-dimensional transient flow behavior was simulated using the open-source flow solver OVERFLOW, version 2.2l [2] developed by NASA Langley Research Center. Configurations at three angles of attack that exhibit unsteady flow behavior starting with the bursting angle were examined at Mach number of 0.18 and Reynolds number of 1.8x106. As the stall angle was approached the aerodynamic performance parameters displayed large-scale unsteadiness where periods of attached and separated flows were observed. The time-averaged results show good agreement with the aerodynamic test data. The calculated Strouhal number for the self-sustained low-frequency oscillations is consistent with the previous experimental research.
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A Penalization Method for 2D Ice Accretion Simulations

Ecole Polytechnique Montreal-Pierre Lavoie, Eric Laurendeau
ONERA-Ghislain Blanchard, Emmanuel Radenac, Philippe Villedieu
Published 2019-06-10 by SAE International in United States
Numerical tools for 3D in-flight icing simulations are not straightforward to automate when seeking robustness and quality of the results. Difficulties arise from the geometry and mesh updates which need to be treated with care to avoid folding of the geometry, negative volumes or poor mesh quality. This paper aims at solving the mesh update issue by avoiding the re-meshing of the iced geometry. An immersed boundary method (here, penalization) is applied to a 2D ice accretion suite for multi-step icing simulations. The suggested approach starts from a standard body-fitted mesh, thus keeping the same solution for the first icing layer. Then, instead of updating the mesh, a penalization method is applied including: the detection of the immersed boundary, the penalization of the volume solvers to impose the boundary condition and the extraction of the surface data from the field solution. Although the current work is intended for 3D simulations, the content of this paper is limited to 2D applications to show the feasibility of the method. Tests are performed on multi-step rime and glaze…
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BEARING, ROLLER, SELF-ALIGNING. SINGLE ROW, ANTI-FRICTION, SEALED, -65 TO 350 °F, TYPE I

ACBG Rolling Element Bearing Committee
  • Aerospace Standard
  • AS21431C
  • Current
Published 2019-06-06 by SAE International in United States
No Abstract Available.
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