scholarly journals Mechanical and Material Properties of Natural and Glass Fiber Hybrid Polyester Composites

2019 ◽  
Vol 8 (9) ◽  
pp. 3359-3362 ◽  
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Material Properties ◽  
Course Of Action ◽  
Lower Volume ◽  
Game Plan ◽  
Polyester Composites ◽  
The Impact

Varieties in malleable and sway properties of Roselle fiber strengthened polyester composites brought about by the expansion of glass fiber have been broke down. Roselle fiber in blend with glass is great for making financially savvy composite materials. The impact of the game plan of glass and Roselle fiber in the arrangement of composites have additionally been considered. A volume portion of 0.12 glass blended with Roselle fiber gives 55.5 % expansion in the elasticity and 194 % expansion in the effect quality of the composites. The elasticity demonstrates the most noteworthy worth when a glass volume part of 0.14 is utilized and an interleaving course of action of glass and Roselle fiber is pursued. Be that as it may, when lower volume division of glass is utilized, a cozy blend of Roselle fiber and glass demonstrates the most astounding elasticity

scholarly journals Experimental Research on Roselle / Glass Fibre Hybrid Polymer Composites

2019 ◽  
Vol 9 (1) ◽  
pp. 4665-4669
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Polymer Composites ◽  
Experimental Research ◽  
Glass Fibre ◽  
Hybrid Polymer ◽  
Lower Volume ◽  
Polyester Composites ◽  
The Impact

Varieties in tractable and sway properties of Roselle fiber strengthened polyester composites brought about by the expansion of glass fiber have been investigated. Roselle fiber in mix with glass is magnificent for making economically savvy composite materials. The impact of the plan of glass and Roselle fiber in the readiness of composites have likewise been examined. Direct increment in rigidity is noted because of the expansion of glass. Be that as it may, when lower volume portion of glass is utilized, a cozy blend of Roselle fiber and glass demonstrates the most elevated rigidity. The effect quality demonstrates the most noteworthy worth when a glass volume part of 0.12 is utilized

A Review on Non-Asbestos Friction Materials: Material Composition and Manufacturing

2018 ◽  
Vol 1150 ◽  
pp. 22-42
Author(s):  
Dinesh Shinde ◽  
Kishore N. Mistry ◽  
Suyog Jhavar ◽  
Sunil Pathak
Keyword(s):  
Composite Materials ◽  
Material Properties ◽  
Single Phase ◽  
Friction Material ◽  
Material Surface ◽  
Surface Wear ◽  
Friction Modifier ◽  
Friction Materials ◽  
Morphological Studies ◽  
The Impact

The peculiar feature of friction materials to absorb the kinetic energy of rotating wheels of an automobile to control the speed makes them remarkable in automobile field. The regulation of speed cannot be achieved with the use of single phase material as a friction material. Consequently, the friction material should be comprised of composite materials which consist of several ingredients. Incidentally, the friction materials were formulated with friction modifier, binders, fillers and reinforcements. Due to its pleasant physical properties, asbestos was being used as a filler. Past few decades, it is found that asbestos causes dangerous cancer to its inhaler, which provides a scope its replacement. Several attempts have been made to find an alternative to the hazardous asbestos. The efforts made by different researchers for the impact of every composition of composite friction material in the field are reviewed and studied for their effect on the properties of friction material. Surface morphological studies of different friction material are compared to interpret the concept of surface wear and its correlation with material properties.

scholarly journals Analysis of the surface quality of polycaprolactam 3D prints enriched with carbon and glass fiber

2021 ◽  
Vol 338 ◽  
pp. 01005
Author(s):  
Damian Dzienniak ◽  
Jan Pawlik
Keyword(s):  
Glass Fiber ◽  
Surface Quality ◽  
Fused Deposition Modeling ◽  
Polyamide 6 ◽  
Fiber Glass ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
The Impact ◽  
The Relationship

Additive manufacturing has been gaining popularity and availability year by year, which has resulted in its dynamic development. The most common 3D printing method as of today, FDM (Fused Deposition Modeling), owing to its peculiarity, does not always guarantee producing objects with low surface roughness. The authors of the present article have taken on the analysis of the impact of FDM printing on the roughness of the filament thus processed. They also investigate the relationship between the roughness of the unprocessed filament (made of polycaprolactam, that is, polyamide 6 or PA6) with admixtures of other materials (carbon fiber, glass fiber) and the surface quality of the manufactured object. The main subject of the analysis is the side surfaces of 3D prints, as it is their quality that is usually directly dependent on many factors connected with the process of the laying of the consecutive layers. The authors check step by step whether there exists a pronounced relationship between the roughness of the original filament material and the roughness of the obtained surface.

Validation of fatigue damage model for composites made of various fiber types and configurations

2017 ◽  
Vol 52 (9) ◽  
pp. 1183-1191 ◽  
Author(s):  
Asim Shahzad ◽  
Sana Ullah Nasir
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Fatigue Damage ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Fiber Types ◽  
Fiber Reinforced ◽  
Hemp Fiber ◽  
Fatigue Data ◽  
Polyester Composites

Empirical model for predicting fatigue damage behavior of composite materials developed recently has been applied to composite materials made of different fibers in various configurations: carbon and glass fiber noncrimp fabric reinforced epoxy composites, chopped strand mat glass fiber-reinforced polyester composites, randomly oriented nonwoven hemp fiber-reinforced polyester composites, and glass/hemp fiber-reinforced polyester hybrid composites. The fatigue properties were evaluated in tension–tension mode at stress ratio R = 0.1 and frequency of 1 Hz. The experimental fatigue data were used to determine the material parameters required for the model. It has been found that the model accurately predicts the degradation of fatigue life of composites with an increase in number of fatigue cycles. The scope of applicability of this model has thus been broadened by using the fatigue data of natural fiber and noncrimp fabric composites.

scholarly journals Object Recognition for Quadcopter Drone using Convolutional Neural Networks

2020 ◽  
Vol 9 (7) ◽  
pp. 224-227
Keyword(s):  
Neural System ◽  
Neural Systems ◽  
Course Of Action ◽  
Self Sufficiency ◽  
Working Parameters ◽  
The Impact ◽  
Free Dynamic ◽  
Line Observation

Object detection is as of now generally utilized in industry. It is the strategy for location and design of genuine items. Models incorporate intermittent scaffold examinations, debacle the executives, power line observation and traffic examinations. As UAV applications become progressively broad, more significant levels of self-sufficiency and free dynamic procedures are expected to improve the security, proficiency and exactness of the gadgets. This article exhibits in detail the method and parameters important for the preparation of convolutional neural systems (CNN) in the programmed acknowledgment of items. The potential areas of utilization in the vehicle division are additionally featured. The precision and unwavering quality of the CNNs rely upon the arrangement of the system and the determination of working parameters. The impact of article recognition shows that by picking a parameter setting course of action, a CNN can recognize and gather objects with a noteworthy degree of accuracy (97.5%) and computational profitability. Moreover, utilizing a convolutional neural system actualized in the YOLO stage (V3), items can be followed, distinguished and characterized progressively

Can ultrasonic parameters affect the impact and water barrier properties of nano-clay filled glass fiber/polyester composites?

2020 ◽  
pp. 152808372096073
Author(s):  
AA Megahed ◽  
MA Agwa ◽  
M Megahed
Keyword(s):  
Glass Fiber ◽  
Impact Resistance ◽  
Impact Behavior ◽  
Water Barrier ◽  
Nano Clay ◽  
Polyester Matrix ◽  
Ultrasonic Parameters ◽  
Polyester Composites ◽  
Sonication Parameters ◽  
The Impact

Good dispersion of the nanoparticles into the polymer is considered a critical issue, as it can provide higher strength and stiffness while poor dispersion is seen to decrease those properties. In the present work, the effect of three ultrasonic parameters (amplitude, time and cycle of sonication) on sonication technique for dispersing 1 wt.% nano-clay in polyester matrix was investigated. To disperse the nano-clay into the polyester matrix, sonication frequencies of 40% and 80%, sonication times of 0.5, 1 and 2 hours and pulse of 0.5 and 1 cycle were used. The effect of these ultrasonication parameters on water barrier and impact behavior of unfilled and filled glass fiber (GF)/polyester with nano-clay under dry, distilled and seawater conditions was studied. Results showed that, water absorption of nano-filled composites dispersed with all sonication parameters is lower than that of unfilled glass fiber/polyester composites immersed in distilled and seawater. Nano-clay filled GF/polyester composites showed an improvement in impact resistance under dry, distilled and seawater conditions with all sonication parameters. Among the used sonication parameters; time of 2 hours, amplitude of 40% and 0.5 cycle was found as the best parameter which resulted in the maximum enhancement in impact resistance, due to the addition of nano-clay to GF/polyester, of 8.2%, 14% and 19.6% under dry, distilled water and seawater conditions, respectively. Nonlinear minimization approach was exploited using MAPLE commercial software in order to find the suitable fit to the models of Fick and Langmuir. Diffusion coefficients for different sonication times were computed.

scholarly journals Effect of permeability on GFRP laminate produced by VARTM process

2020 ◽  
Vol 184 ◽  
pp. 01029
Author(s):  
Bairoju Shankarachary ◽  
N Sateesh ◽  
Lavu Gopinath ◽  
Siripuram Aparna
Keyword(s):  
Glass Fiber ◽  
Process Parameters ◽  
Considerable Effect ◽  
Sem Analysis ◽  
Void Content ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Commercial Applications ◽  
The Impact

Vacuum assisted resin transfer molding (VARTM) is one of the manufacturing technique that is viable for production of fiber reinforced polymer composite components suitable for aerospace, marine and commercial applications. However the repeatable quality of the product can be achieved by critically fixing the process parameters such as Vacuum Pressure (VP) and permeability of the preform. The present investigation is aimed at studying the effect of permeability for production of Glass Fiber Reinforced Polyester (GFRP) components with consistent quality. The VARTM mould is made with an acrylic transparent top cover to observe and record the resin flow pattern. Six layers of randomly placed glass fiber under five different vacuum pressures VP1 = 0.013, VP2 = 0.026, VP3 = 0.039, VP4 = 0.053 and VP5 = 0.066 MPa were studied. The laminates produced by this process under the above mentioned conditions were characterized with ASTM D procedures so as to study the effect of these process parameters on the quality of the laminate. And as mentioned there is a considerable effect of permeability on the impact strength and the void content in the laminates under different vacuum pressures. SEM analysis of the impact tested fractured GFRP composites showed the bonding of fiber and matrix.

scholarly journals Tannery Shavings and Mineral Additives as a Basis of New Composite Materials

2019 ◽  
Vol 27 (5(137)) ◽  
pp. 130-139 ◽  
Author(s):  
Katarzyna Ławińska ◽  
Remigiusz Modrzewski ◽  
Wioleta Serweta
Keyword(s):  
Composite Materials ◽  
Material Properties ◽  
Total Mass ◽  
Tensile Tests ◽  
Material Structure ◽  
Static Tensile ◽  
New Material ◽  
The Impact ◽  
Mineral Additives ◽  
Properties Of Composites

This paper analyses the possibility of using tannery shavings as a basis for new composite materials with specified properties. The new material was made by combining tannery shavings with an adhesive medium. Mineral additives, such as dolomite, kaolin and bentonite were used in an amount of 5% and 10% of the total mass of shavings as a filler. In order to point out the influence of mineral additives on the final composite structure, some physico–mechanical properties, such as tensile strength and elasticity were examined with the use of static tensile tests. The second part of the investigation involved the analysis of wetteability by immersion, because this property depends on several aspects, such as surface roughness and the material structure. Thus, changes in wetteability values can provide information about the impact of mineral additives on the material properties of composites. With regard to physico–mechanical and sorption properties obtained on the basis of experimental results, it was possible to define areas of possible applications of these materials in comparison with current methods.

Delamination in Drilling of GFR/High Impact Polystyrene Omposites

2012 ◽  
Vol 622-623 ◽  
pp. 1271-1274 ◽  
Author(s):  
T. Srinivasan ◽  
K. Palanikumar ◽  
K. Rajagopal
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Cutting Parameters ◽  
High Impact ◽  
Thermoplastic Composite ◽  
Plastic Composite ◽  
Final Assembly ◽  
Glass Fiber Reinforced ◽  
Important Concern

Glass fiber reinforced thermo plastic composite materials are finding increased applications in many areas due to their important applications. Drilling is an important operation in the final assembly of the structural frames. The life of the joining can be critically affected by the quality of the drilled holes. The delamination, fiber peel out, pull in, are important concern in drilling. The analysis of delamination in drilling and the influence of cutting parameters on thermoplastic composite materials is presented in detail.

scholarly journals The Impact of Methods of Forming on the Mechanical Properties of Fiber-reinforced Polymer-matrix Composite Materials

2015 ◽  
Vol 2 (1) ◽  
pp. 5-12 ◽  
Author(s):  
Krzysztof Piernik ◽  
Irena Chatys ◽  
Rafał Chatys
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Composite Laminates ◽  
Fibrous Composite ◽  
Strength Properties ◽  
Fiber Reinforced Polymer ◽  
Polymer Resin ◽  
Reinforced Polymer ◽  
Polyester Matrix ◽  
The Impact

Abstract The aim of this paper was to analyze how different techniques of production of fibrous composite materials affect the quality and strength properties of composite laminates. In this study, we use experimental data concerning a composite fabricated with the by hand lay-up and vacuum bagging method. The composites have a polyester matrix (Firestop 8175-w-1) reinforced with mate-glass fiber fabric [0/90/0/90] E glass fiber, respectively. The process parameters and criteria were determined before the samples were cut, namely the amount and soaking time of the composite with the polymer resin.

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