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An Advanced Study on Jute-Polyester Composites for Mechanical Design and Impact Safety Applications

Electronic Theses of Indian Institute of Science

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Title An Advanced Study on Jute-Polyester Composites for Mechanical Design and Impact Safety Applications
 
Creator Mache, Ashok Ranganath
 
Subject Jute-Polyester Composites - Engineering Design Applications
Jute-Polyester Composites
Fiber Reinforced Composites
Biocomposite Materials
Hybrid Jute-Steel Composites
Composite Materials
Jute-Polyester Composite Laminates
Jute-Steel Wire Mesh-Polyester Composite
Jute Fiber-Based Composite Tubes
Jute-Steel Composite
Glass-Polyester Composite Tubes
Jute-Polyester Composite Tubes
Jute-Polyester Laminate
Product Design and Manufacturing
 
Description Natural fiber-reinforced composites are now finding extensive uses in various fields from household articles to automobiles. These composites can score high compared to common synthetic fiber-based composites, notably glass fiber-reinforced composites, in areas such as occupational safety and health, and impact on environment. The current research work is motivated by the need for exploring jute fibers as replacement for glass fibers for various engineering design applications including more demanding impact protection applications as in automotive body structures.
In the current work, detailed mechanical characterization of jute-polyester (JP) composite laminates till failure has been carried out for tensile, compressive and flexural loads by varying volume fraction of jute fibers. The effect of fiber volume fraction on mechanical properties is shown. Because of the potency of closed thin-walled components as structural energy-absorbers, a comprehensive experimental study has been performed, for the first time, comparing the behaviors of various geometric sections of JP and glass-polyester (GP) composite tubes under axial quasi-static and low velocity impact loading. Additionally, for jute-reinforced plastic panels to be feasible solutions for applications such as automotive interior trim panels, laminates made of such materials should have adequate perforation resistance. Thus, a detailed comparative study has been carried out for assessing the performance of JP laminates vis-a-vis GP plates under low velocity impact perforation conditions. As high-end product design is heavily driven by CAE (Computer-Aided Engineering), the current research work has also focused on the challenging task of developing reliable modeling procedures for explicit finite element analysis using LS-DYNA for predicting load-displacement responses and failures of JP composites under quasi-static and impact loading conditions. In order to extend the applications of JP composites to structurally demanding applications, hybrid laminates made of jute-steel composites and jute with nanoclay-reinforced polyester have been investigated and the considerable enhancement of mechanical properties due to hybridization is shown. Furthermore, a comprehensive study has been conducted on the behavior of JP laminates for varying degrees of moisture content until saturation, and the efficacy of hybrid laminates in this context has been shown.
 
Contributor Deb, Anindya
 
Date 2018-05-14T06:24:10Z
2018-05-14T06:24:10Z
2018-05-14
2015
 
Type Thesis
 
Identifier http://etd.iisc.ernet.in/2005/3532
http://etd.iisc.ernet.in/abstracts/4400/G27586-Abs.pdf
 
Language en_US
 
Relation G27586