The polymer matrix composites attract many industrial applications due to its light weight, less cost and easy for manufacturing. In this paper, an attempt is made to prepare and study of the tensile strength of hybrid (two natural) fibers reinforced hybrid (Natural + Synthetic) polymer matrix composites. The samples were prepared with hybrid reinforcement consists of two different fibers such as jute and Gongura and hybrid polymer consists of polyester and cashew nut shell resins. The hybrid composites tensile strength is evaluated to study the influence of various fiber parameters on mechanical strength. The parameters considered here are the duration of fiber treatment, the concentration of alkali in fiber treatment and nature of fiber content in the composites.

Venkatachalam G

Mechanical

School of Mechanical Engineering

Chennai Campus

Shankar A.G

Vijay K.V

Chandan B.R

Prabaharan G.P

Raghav D.

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

&nbsp;

&nbsp;

VIT University

Evaluation of tensile strength of hybrid fiber (jute/gongura) reinforced hybrid polymer matrix composites

IOP Conference Series: Materials Science and Engineering

This chapter begins with a detailed introduction to composite interfaces. The focus is on fiber-matrix interfaces. Before embarking on an account of interfacial phenomena, theories of adhesion in metallic, ceramic, plastic, biopolymers and hybrids are documented and illustrated starting from pioneering investigations. Case studies of reinforcement-matrix interfaces are provided. Available surface technologies that enhance interfacial adhesion between the reinforcement and the matrix are provided and an extended list of techniques and materials is given. Surface and interface characterization through microscopic and spectroscopic methods is added as an illustrative section that educates the reader about structure property correlations in composite surfaces and their interfaces and assists an understanding of the correlations of their physical, chemical, and mechanical evaluation. The highlight of the chapter is a complete rendering of the pioneering and advanced methods conducted to evaluate the interfacial properties of metallic, ceramic, polymeric, and hybrid composite systems. The chapter also familiarizes the reader in the basic essentials of micro-, meso-, macromechanics and the mechanisms associated with measuring the interfacial strength, stiffness, and toughness of fiber-polymer systems. A special focus on fractography and the progressive fracture of the fiber-matrix interface is included to provide the reader with an understanding of fracture processes and failure sequences in the interfaces. The chapter ends with an overview of novel nanoscale, biological, multiscale, and macrocomposite interfaces and their evaluation. Finally, the summary and conclusions are succeeded by a short treatise on futuristic directions, suggestions, and implications regarding further research. © 2019 Elsevier Ltd. All rights reserved.

Mechanical and Physical Testing of Biocomposites, Fibre-Reinforced Composites and Hybrid Composites

Evaluation and methods of interfacial properties in fiber-reinforced composites

Recently published research indicates that natural fibre based polymer composites have limited applications in advanced structural systems due to their low impact performance. However, natural fibres have great potential for reducing the product weight, lowering material cost, and renewability. Hybrid composites made from a combination of natural/synthetic fibres, natural/natural fibres, or synthetic/synthetic fibres are also receiving attention from both researchers and the industry for structural applications owing to the tailored mechanical and impact properties of these materials. The hybridisation process is one of the paramount and more efficient ways to strengthen and improve the performance of composite materials. This review paper examines the impact properties of hybrid composites manufactured with the aim of improving their structural characteristics, and in particular, is focused on the impact resistance and penetration behaviour of hybrid composites reinforced with natural and synthetic fibres as well as their suitability for modern structural applications. © 2017 Elsevier Ltd

Composites Part B: Engineering

Impact behaviour of hybrid composites for structural applications: A review

Composites: Mechanics, Computations, Applications: An International Journal

FLEXURAL ANALYSIS OF COIR FIBER-REINFORCED HYBRID POLYMER MATRIX COMPOSITES

Composite Structures

Extraction and tensile properties of natural fibers: Vakka, date and bamboo

Materials & Design

Mechanical properties of woven banana fibre reinforced epoxy composites

The dynamic and static mechanical properties of randomly oriented intimately mixed short banana/sisal hybrid fibre reinforced polyester composites were determined. Dynamic properties such as the storage modulus (E′), damping behaviour (tan δ) and static mechanical properties such as tensile, flexural and impact properties were investigated as a function of total fibre volume fraction and the relative volume fraction of the two fibres. Keeping the relative volume fraction of banana and sisal (1:1), the volume fraction of the fibre was optimised. The storage modulus was found to increase with fibre volume fraction above glass transition temperature (Tg) of the matrix and maximum value was obtained at a volume fraction (Vf) of 0.40. The tan δ peak height was minimum and peak width was maximum at 0.40 Vf. Tensile modulus and flexural strength were found to be the highest at 0.40 volume fraction, which indicates effective stress transfer between the fibre and matrix. A positive shift in Tg of polyester matrix at 0.40 Vf also indicates better fibre/matrix interaction. Keeping the total fibre volume fraction, 0.40 Vf, hybrid composites having different volume ratios of the fibres and unhybridised composites were prepared and analysed. Sisal/polyester composite showed maximum damping behaviour and highest impact strength as compared to banana/polyester as well as hybrid composites. However, maximum stress transfer between the fibre and matrix was obtained in composites having volume ratio of banana and sisal as 3:1, which has lowest tan δ value and highest E′ value at Tg. The tensile strength and flexural modulus were also the maximum and impact strength was the minimum at this volume ratio. Fractographic evaluations carried out under scanning electron microscope (SEM) confirm the quantitative characterisation obtained from static and dynamic mechanical analysis. The Arrhenius relationship has been to calculate the activation energy of the glass transition of the polyester. The highest activation energy was found in hybrid composite with volume ratio of banana and sisal as 3:1. A master curve was constructed based on time-temperature superposition principle. Finally, the experimental results were compared with theoretical predictions. © 2004 Elsevier Ltd. All rights reserved.

Composites Science and Technology

Dynamic mechanical analysis of randomly oriented intimately mixed short banana/sisal hybrid fibre reinforced polyester composites

Journal	Data powered by TypesetIOP Conference Series: Materials Science and Engineering
Publisher	Data powered by TypesetIOP Publishing
ISSN	17578981
Open Access	No