Investigation on Flexural and Impact Properties of Abaca and Manila Hybrid Composite

2014 ◽  
Vol 1051 ◽  
pp. 102-106
Author(s):  
B. Vijaya Ramnath ◽  
V.M. Manickavasagam ◽  
C. Elanchezhian ◽  
A. Santhosh Shankar ◽  
R. Sundarrajan ◽  
...  
Keyword(s):  
Hybrid Composite ◽  
Composite Laminate ◽  
Room Temperature ◽  
Fibre Composite ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
The Past ◽  
Fibre Composites ◽  
Increased Strength

Bio-fibre composites are increasingly replacing conventional and synthetic composite materials for the past two decades. This is due to their abundant availability, high strength to weight ratio and bio-degradability. Suitable properties of natural fibres can be imparted by changing the orientation of the fibres during manufacturing process. This paper proposes a hybrid property of natural fibre composite made up of Manila and abaca fibres as reinforcing agents with epoxy resin as matrix .Hand lay-up process is used for manufacturing this composite laminate. Then the treated fibres with increased strength are used with epoxy LY556 resin with HY951 hardener under room temperature. Three different samples are prepared and their mechanical properties like impact and flexural strength are found. This hybrid composite is effectively developed for automobile and electrical applications.

Investigation on Compression and Hardness Properties of Abaca and Manila Hybrid Composite

2014 ◽  
Vol 680 ◽  
pp. 23-26
Author(s):  
V.M. Manickavasagam ◽  
B. Vijaya Ramnath ◽  
C. Elanchezhian ◽  
V. Vignesh ◽  
V. Vijai Rahul ◽  
...  
Keyword(s):  
Composite Materials ◽  
Hybrid Composite ◽  
Fibre Composite ◽  
Weight Ratio ◽  
High Strength ◽  
Vital Role ◽  
Very High

Nowadays composite materials play a vital role in automotive and aerospace industries due to their important properties like high strength to weight ratio, biodegradability and ease of production. In this paper, compression and hardness properties of a hybrid composite made of manila and abaca fibers are evaluated. Hand layup process is used in this work. The result shows that hybrid composite possesses very high strength and hardness as compared to mono fibre composite.

Experimental investigation on the mechanical properties of aluminium sandwiched sisal/kenaf/aloevera/jute/flax natural fibre-reinforced epoxy LY556/GY250 composites

2020 ◽  
pp. 096739112097350
Author(s):  
Jeswin Arputhabalan ◽  
L Karunamoorthy ◽  
K Palanikumar
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Fibre Composite ◽  
Matrix Material ◽  
Aloe Vera ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
Mechanical Tests ◽  
Natural Fibres

In engineering, composites have indicated a more profound influence in the recent development of materials with high strength to weight ratio. The purpose of this work is to identify the different and specific properties which a composite possesses when various reinforcement fibres are used in different epoxy matrix material. Composite materials have a major role to play with meeting that requirement. Many natural fibre composite materials possess good mechanical properties but still lack in satisfying applications requirements and alternate for which is seen as sandwich natural fibre composites. In this investigation, an effort has been made to study the mechanical properties exhibited by sandwich epoxy composite reinforced with various commonly used natural fibres, namely Aloevera, Kenaf, Sisal, Jute and Flax. The polymer resin used as matrix is also varied using Epoxy LY556 and Epoxy GY250. The originality of this work is in the use of Epoxy GY250 to fabricate sandwich composites with five commonly available natural fibres and compare its performance to the more widely used Epoxy LY556. It has been determined through various mechanical tests, which particular epoxy resin bonds better with the natural fibres namely, jute, sisal, aloe vera, kenaf and flax thereby providing better tensile, impact and flexural properties. The investigation is hoped to provide an insight into how the environmentally friendly natural fibres interact with the varying matrix resins and how this interaction affects the mechanical properties of said composites.

scholarly journals The Egg shell as a filler in composite materials - a review

2021 ◽  
Vol 4 (4) ◽  
pp. 335-340
Author(s):  
Dr. Ravi Kumar Chandrappa ◽  
Mrs. Sakshi S Kamath
Keyword(s):  
Flame Retardants ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
Composite Fabrication ◽  
Fibre Composites ◽  
Fibre Reinforced Polymer ◽  
Composite Production ◽  
Egg Shell ◽  
Work Done

Current focus is on Natural fibre reinforced polymer composites with its advantages being eco-friendly in nature, high strength to weight ratio, being bio-degradable and naturally available when compared to its counterpart; synthetic fibres which is non-biodegradable, expensive and hazardous in nature. The strength of the natural fibre composites is further enhanced by different types of additives which includes fillers, flame retardants, silanes, coupling agents and so on. One such additives, in role is egg shell powder which greatly influences the strength of natural fibre composites and thus, gains the attention of researches for its incorporation in composite fabrication. The work is in progress with respect to utilizing waste egg shell in composite fabrication, which not only finds solution to discard this waste, but also enhances the strength of composites manufactured. This work is the compilation of work done by different researchers with egg shell in composites, so that the need of its utilization in the same will be clearer with its advantages with respect to achieving greater mechanical strength and wear resistant property and thereby it could be continued to be used as filler during composite production.

Fabrication and Comparison of Mechanical Properties of Jute and Glass Fibre Reinforced Composites

2014 ◽  
Vol 592-594 ◽  
pp. 344-348
Author(s):  
Ram Rohit ◽  
Linford Pinto ◽  
K.Mallikharjuna Babu ◽  
Martin Jebraj ◽  
Harsha R. Gudi
Keyword(s):  
Mechanical Properties ◽  
Building Materials ◽  
Fibre Composite ◽  
Damping Ratio ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
Mechanical Tests ◽  
Reinforced Composites ◽  
Artificial Fibre

The properties of fiber reinforced composites (FRP) like high strength to weight ratio, high stiffness to weight ratio, flexibility in design, ease of fabrication with economical savings as compared to metal alloys, make it an excellent choice for various range of products from building materials, sporting equipment, appliances, automotive parts, boats, canoe hulls to bodies for recreational vehicles. In this study the properties of natural fibre composite are compared with composite made of artificial fibres. The natural fibre chosen is jute fibre and the artificial fibre chosen is glass fiber. Polyester resin was the matrix used because of compatibility, cost effectiveness and easy availability. The composites were fabricated by Hand Layup technique and the number of layers of composite laminate was varied as three, four and five. The specimens were subjected to mechanical tests and Young’s Modulus, Ultimate Strength were evaluated. Modal analysis was carried out to determine the damping characteristics through damping ratio. A comparison of the two composites in terms of mechanical properties is made and the results are tabulated.

scholarly journals Modeling of Forming Limit Bands for Strain-Based Failure-Analysis of Ultra-High-Strength Steels

Metals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 631 ◽  
Author(s):  
Hamid Bayat ◽  
Sayantan Sarkar ◽  
Bharath Anantharamaiah ◽  
Francesco Italiano ◽  
Aleksandar Bach ◽  
...  
Keyword(s):  
Material Properties ◽  
Driving Forces ◽  
Weight Ratio ◽  
High Strength Steels ◽  
High Strength ◽  
Forming Limit ◽  
Boron Steel ◽  
Passenger Safety ◽  
Ultra High Strength Steels ◽  
Increased Strength

Increased passenger safety and emission control are two of the main driving forces in the automotive industry for the development of light weight constructions. For increased strength to weight ratio, ultra-high-strength steels (UHSSs) are used in car body structures. Prediction of failure in such sheet metals is of high significance in the simulation of car crashes to avoid additional costs and fatalities. However, a disadvantage of this class of metals is a pronounced scatter in their material properties due to e.g., the manufacturing processes. In this work, a robust numerical model is developed in order to take the scatter into account in the prediction of the failure in manganese boron steel (22MnB5). To this end, the underlying material properties which determine the shapes of forming limit curves (FLCs) are obtained from experiments. A modified Marciniak–Kuczynski model is applied to determine the failure limits. By using a statistical approach, the material scatter is quantified in terms of two limiting hardening relations. Finally, the numerical solution obtained from simulations is verified experimentally. By generation of the so called forming limit bands (FLBs), the dispersion of limit strains is captured within the bounds of forming limits instead of a single FLC. In this way, the FLBs separate the whole region into safe, necking and failed zones.

Incremental Damage Development in a 3D Woven Carbon Fibre Composite

2007 ◽  
Vol 15 (7) ◽  
pp. 521-533
Author(s):  
S. King ◽  
G. Stewart ◽  
A.T. McIlhagger ◽  
J.P. Quinn
Keyword(s):  
Carbon Fibre ◽  
Fibre Composite ◽  
Weight Ratio ◽  
Matrix Cracking ◽  
Limiting Factors ◽  
Damage Development ◽  
Carbon Fibre Composite ◽  
Damage Initiation ◽  
Fibre Composites ◽  
Carbon Fibre Composites

Interest in 3D woven carbon fibre composites has increased within industries such as aerospace, automotive and marine, due to their high strength to weight ratio, their increased tailorability and their capacity to be manufactured into near net shape preforms, thereby reducing parts count, assembly time, labour intensity and costs. It is vital that critical areas of concern such as damage (and in particular damage initiation and development) are studied and understood, thereby reducing the limiting factors to their acceptance. The damage initiation and subsequent intervals of development for ILSS (Interlaminar Shear Strength) were determined experimentally. Particular focus is paid to the significance of binder edge and binder middle testing and the influence of through-the-thickness (T-T-T) reinforcement in relation to damage types and development. Control samples for binder edge and binder middle loading locations were tested to failure as a means of determining an average point of failure, allowing the generation of testing intervals. The performance and architecture of samples from each incremental interval were characterised using a combination of graphical analysis and optical microscopy with the aid of dye-penetrant to highlight fibre damage and matrix cracking. Samples displayed specific damage initiation points, thus allowing the generation of a damage guide relating to applied force. In addition, the results imply that a relationship exists between the location of applied load and subsequent damage, thus showing the significant influence played by the T-T-T binder loading location on damage development within 3D woven carbon fibre composites. Some of the preliminary data shown in this paper was presented at IMC23 at the University of Ulster, UK in August 2006 and at Texcomp 8 in Nottingham, UK October 2006.

Flexural, Tensile and Impact Properties of Alkali Treated Coir Fibre Composites Prepared by Compression Molding Technique

2015 ◽  
Vol 766-767 ◽  
pp. 90-95
Author(s):  
G. Godwin ◽  
K. Umanath
Keyword(s):  
Mechanical Properties ◽  
Weight Ratio ◽  
Polymeric Materials ◽  
High Strength ◽  
General Purpose ◽  
Coir Fibre ◽  
Fibre Composites ◽  
Fibre Reinforced Polymer ◽  
High Initial Cost ◽  
Coconut Fibre

Polymeric materials reinforced with synthetic fibres such as glass provide advantage of high stiffness and high strength to weight ratio. Despite these advantages, the widespread use of synthetic fibre-reinforced polymer composite has a tendency to decline because of their high-initial cost and most importantly their adverse environmental impact. In this work, four different composites are prepared with untreated coconut fibres, NaOH mercerized coconut fibres, KOH mercerized coconut fibres and CSM glass fibres. A lot of studies are done earlier on NaOH mercerized coconut fibre composites. But, no studies are done specifically for KOH mercerized coconut fibre composites. So, KOH mercerized coconut fibre composites are prepared in this study. General purpose polyester resin is used for preparing all the compsites. The mechanical properties of composites are studied using the flexural test, impact test and tensile test. The mechanical properties of KOH mercerized coconut fibre composites are studied and compared with the mechanical properties of NaOH mercerized coconut fibre composites, untreated coconut fibre composites and CSM glass fibre composites.

scholarly journals Numerical and Experimental Investigation of Formability in Incremental Sheet Forming of Particle Reinforced Metal Matrix Composite Sheets

2021 ◽  
Author(s):  
Shakir Gatea ◽  
Thana Abdel Salam Tawfiq ◽  
Hengan Ou
Keyword(s):  
Metal Matrix ◽  
Room Temperature ◽  
Single Point ◽  
Weight Ratio ◽  
High Strength ◽  
Operating Conditions ◽  
Particle Composite ◽  
Heat Treated ◽  
Wide Range ◽  
Sic Particle

Abstract Metal matrix composites (MMCs) have a high strength-to-weight ratio, high stiffness, and good damage resistance under a wide range of operating conditions, making them a viable alternative to traditional materials in a variety of technical applications. Because of their high strength, composite materials are hard to deform to a significant depth at room temperature. As a result, additional treatments are required to enhance the composite's room ductility prior to deformation. In this investigation, as-received 6092Al/SiCp composite sheets (T6-condition) are heat treated to O-condition annealing to enhance its ductility in order to assess the influence of single point incremental forming (SPIF) parameters on the formability and fracture behavior of the Al/SiC particle composite sheets at room temperature. Then the annealed sheets are heat treated to T6-condition to enhance the strength and achieve properties equivalent to as-received sheets properties. The results demonstrate that the Al/SiC particle composite sheets with T6 treatment could not be deformed to the specified depth at room temperature due to low room ductility and that further treatment, such as O-condition annealing, is required to enhance the room ductility. When annealed Al/SiCp composite sheets are heat treated to T6, the sheets exhibit properties comparable to the as-received sheets. Al/SiC particle composite sheets with low SPIF parameters may have greater formability and fracture depth with low strain hardening curve.

Structural behaviour of pultruded fibre composites guardrail system under horizontal loading

2015 ◽  
Vol 232 (4) ◽  
pp. 273-286 ◽  
Author(s):  
Allan Manalo ◽  
Mac Pac
Keyword(s):  
Failure Load ◽  
Fibre Composite ◽  
High Strength ◽  
Structural Behaviour ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Fibre Composites ◽  
Fall From Height ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced

Fibre composite guardrails are increasingly being used to ensure safety of workers from fall-from-height incidents due to its high strength, high corrosion resistance and low maintenance. In this study, the structural behaviour of pultruded glass fibre-reinforced polymer (GFRP) guardrail was evaluated following AS1657-1992. GFRP guardrail systems mounted on top and side of a steel beam with different joint connectors are loaded horizontally to top of the guardrail post and to the middle of the guardrail member. The results showed that the guardrail system with joints connected with either polypin or rivets combined with epoxy exhibited 20% higher failure load and almost double the stiffness than those connected using polypin or rivets alone. The side-mounted guardrail failed due to failure of the base connector while the guardrail mounted on top of the beam failed at the joints indicating that the structural behaviour of GFRP guardrail system is affected mainly by the type of joints.

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