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Employing natural plant based fiber in interior automotive parts for cost & weight benefit

Vivekanandhan-Vivekanandhan Venkatesan Balaguru
  • Technical Paper
  • 2019-28-2559
To be published on 2019-11-21 by SAE International in United States
The Automotive industry is in ever more need for a lesser weight car due to progressively stringent emission norms and the demand of customer to have better mileage. It can be a gargantuan challenge for automotive manufacturers to search for lesser weight material to meet both customers as well as regulatory norms. But in some cases such lower weight material can increase the cost and adding a expensive material which increases overall cost to a price sensitive market like India is not favorable. One such solution is using the indigenous plant fiber (Jute) in combination with propylene (PP) to make Interior plastics components. Jute a vegetable fiber also referred to as "the golden fiber" has high tensile strength, low extensibility and is well established in fabric, packing, agriculture, construction industries. The biodegradable Jute lesser weight & abundance (India is the leading manufacturer of the Jute) can be utilized in making automobile trim parts in India. Through this paper we will have insight of the natural fiber based plastic components the benefits (lesser weight, Less GSM…
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Squeak Behavior of Plastic Interfaces

Auto & Truck Services-Lokesh Pancholi
Published 2019-10-11 by SAE International in United States
Automotive is getting advanced and increasingly comfortable with new technologies and demand from customers. Car cabins have become much quieter as compared yesteryears. Where the outside noise has gone down significantly, secondary and small noises like squeak and rattle have become more prominent. Squeak though a transient and short lived, is an unexpected noise and often considered as an irritant. There is an increasing need felt to eliminate squeak completely from the interiors of the vehicle where choice materials play dominant role. This article briefs about the work done on evaluating different plastic interfaces for squeak behavior using Stick-Slip method. Some plastic surfaces were even tested with other interfaces like leather and vinyl coated fabrics. Choice of plastic material and interfaces to be tested were shortlisted after studying many different vehicles and benchmarking. Difference in squeak was also studied with respect to external conditions like temperature, velocity of interfaces, normal force, humidity and roughness. The result of any test is measured in the form of Risk Priority Number (RPN) where higher the RPN, higher is…
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Development and Investigation of Jute/Linen Fibre Reinforced Polymer Composite

BSA Crescent Institute of Science & Technology-Arvinda Pandian, Siddhi Jailani
Published 2019-10-11 by SAE International in United States
In recent automotive era, natural fibre reinforced with thermoset polymer composites have been incorporated by automotive industries especially for interiors, car body panels, dashboards, headliners etc. Natural fibres offer many affirmative qualities such as less weight and cost, especially in reduction of carbon di-oxide which is a major threat to the planet from the automotive sectors. The current work deals with the study of the potential usage of mineral powder (industrial by-product) in polymer. In this paper, hybrid composites with natural fabrics reinforcements and mineral powder as filler to matrix material are developed. The mineral powder used as filler is silica fumes which is a by-product of industries. 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 composites are affected. Results disclose that loading of silica fumes increases the…
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Lightweight Exosuit Combines Robotics and Functional Apparel

  • Magazine Article
  • TBMG-35263
Published 2019-10-01 by Tech Briefs Media Group in United States

Between walking and running, human gaits can cover a wide range of speeds; for example, at low speeds, the metabolic rate of walking is lower than that of running in a slow jog. The opposite also is true: at high speeds, the metabolic cost of running is lower than that of speed-walking.

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CONTI SUITS UP

Automotive Engineering: October 2019

Lindsay Brooke
  • Magazine Article
  • 19AUTP10_01
Published 2019-10-01 by SAE International in United States

A team of young innovators aims to transform a critical piece of safety equipment - and create new business - through collaboration.

Few colors shock the human brain into attention more than high-visibility Yellow. “Hi-viz” as it's known in the safety-apparel industry, is an on-the-job requirement for first responders, road workers, tow-truck drivers, linesmen, loggers, couriers, coast guard deck crews - any all-weather vocation for which being seen in low-visibility situations can make the difference between life and death. Included are overnight package-delivery drivers who must sprint across busy city streets - at night, in the fog and rain - to deliver the goods.

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Development of Multi-Material Overhead Stowage Systems for Commercial Aircrafts by Using New Design and Production Methods

3D Systems GmbH-Gunnar Fick
Composite Technology Center / CTC GmbH-Marc Fette
Published 2019-09-16 by SAE International in United States
Innovative, lightweight and cost-efficient aircraft components require the use of modern lightweight materials and efficient production technologies. A promising technology is the combination of chopped fiber Sheet Molding Compounds (SMC) and pre-impregnated, continuous fiber fabrics processed by single-stage compression molding. The so-called Hybrid SMC Technology obtains cost-efficiency as well as time-saving production of loaded and functional aircraft components. However, reliable design principles for components and computing methods for predicting the material behavior have to be developed for a use in aviation industry. Hence, this paper deals with the development of materials, fabrics, manufacturing processes and computing methods related to the Hybrid SMC Technology. Those developments are demonstrated and validated by the implementation of a lightweight multi-material overhead stowage compartment (OHSC) using new design approaches as well as assembly principles.
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Motor Vehicle Brake Fluid

Brake Fluids Standards Committee
  • Ground Vehicle Standard
  • J1703_201909
  • Current
Published 2019-09-13 by SAE International in United States
This SAE Standard covers motor vehicle brake fluids of the nonpetroleum type, based upon glycols, glycolethers, and appropriate inhibitors, for use in the braking system of any motor vehicle such as a passenger car, truck, bus, or trailer. These fluids are not intended for use under arctic conditions. These fluids are designed for use in braking systems fitted with rubber cups and seals made from styrene-butadiene rubber (SBR), or a terpolymer of ethylene, propylene, and a diene (EPDM).
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Motor Vehicle Brake Fluid Based Upon Glycols, Glycol Ethers, and the Corresponding Borates

Brake Fluids Standards Committee
  • Ground Vehicle Standard
  • J1704_201909
  • Current
Published 2019-09-13 by SAE International in United States
This SAE Standard covers motor vehicle brake fluids of the nonpetroleum type, based upon glycols, glycol ethers, and borates of glycolethers, and appropriate inhibitors, for use in the braking system of any motor vehicle such as a passenger car, truck, bus, or trailer. These fluids are not intended for use under arctic conditions. These fluids are designed for use in braking systems fitted with rubber cups and seals made from styrene-butadiene rubber (SBR), or a terpolymer of ethylene, propylene, and a diene (EPDM).
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Latest mass-reducing innovations honored by Altair

Automotive Engineering: September 2019

Ryan Gehm
  • Magazine Article
  • 19AUTP09_09
Published 2019-09-01 by SAE International in United States

The fourth-generation Jeep Wrangler, which eliminated 92 kg (203 lb) compared to the previous-generation vehicle, and Ferrari's Portofino, which is 80 kg (176 lb) lighter yet 35% stiffer than the outgoing California T it replaces, were the Full Vehicle category winners of the 7th annual Altair Enlighten Awards, the widely-anticipated lightweighting competition sponsored by Altair and presented at the Center for Automotive Research (CAR) 2019 Management Briefing Seminars (MBS) conference in Traverse City, Mich.

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Textile Cools or Insulates Automatically

  • Magazine Article
  • TBMG-34915
Published 2019-08-01 by Tech Briefs Media Group in United States

Researchers have created a fabric that automatically regulates the amount of heat that passes through, depending on conditions; for example, when conditions are warm and moist — such as those of a sweating body on a summer day — the fabric allows infrared radiation (radiant heat) to pass through. When conditions become cooler and drier, the fabric reduces the heat that escapes. Infrared radiation is a primary way the body releases heat and is the focus of this new technology.