analysis the mechanical behaviour of jute fiber composite an integrated approach

IJSRD - International Journal for Scientific Research & Development| Vol. 3, Issue 10, 2015 | ISSN (online): 2321-0613

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Analysis the Mechanical Behaviour of Jute Fiber Composite an

Integrated Approach A.K.Nachimuthu

Assistant Professor

Department of Mechanical Engineering

SVS College of Engineering, Coimbatore, TamilnaduAbstract— In this project work, the jute fiber and glass fiber

composite laminate specimens are prepared as per ASTM

standards. The composite laminate with the jute and glass

fiber are fabricated by simple hand layup technique. The

composite laminate undergoes various mechanical testing as

tensile test, impact test, water absorption test and the

mechanical properties are analyzed. In general the jute fiber

composites are great strength, low cost and low density and

it’s have enough potential for reinforcing agent.

Key words: Composite, Glass Fiber, Jute Fiber, Mechanical

Testing, Reinforcing Agent

I. INTRODUCTION

Two or more materials are used make composite materials

for their unique properties. This definition is general for

metals alloys, plastic co-polymers, minerals, and wood.

Human beings did not invent the composite; it is found in

nature. An example is wood, which is a composite of

cellulose fibers in a matrix of natural glue called lignin. The

shell of invertebrates, such as snails and oysters, is an

example of a composite. Such shells are stronger and

tougher than fabricated advanced composites. Scientists

have found that the fibers taken from a spider’s web are

stronger than synthetic fibers. The reinforcements can be

made from polymers, ceramics, and metals. The fibers can

be continuous, long, or short. Composites made with a

polymer matrix have become more common and are widely

used in various industries. This section focuses on

composite materials in which the matrix materials are

polymer-based resins. They can be thermoset or

thermoplastic resins. The reinforcing fiber or fabric provides

strength and stiffness to the composite, whereas the matrix

gives rigidity and environmental resistance. Reinforcing

fibers are found in different forms, from long continuous

fibers to woven fabric to short chopped fibers and matrix.

Each configuration results in different properties. The

properties strongly depend on the way the fibers are laid in

the composites. All of the above combinations or only one

form can be used in a composite.

II. MATERIALS AND METHODS

This chapter describes the details of processing of the

composites The raw materials used in this work as follows

Jute fiber

Glass fiber

Resin

Glass fiber is commonly used as an insulating

material. It is also used as a reinforcing agent for many

polymer products; to form a very strong and light fiber

(FRP) composite material called glass-reinforced plastic

(GRP), popularly known as "fiberglass". Glass fiber has

roughly comparable properties to other fibers such as

polymers and carbon fiber. Although not as strong or as

rigid as carbon fiber, it is much cheaper and significantly

less brittle. Glass fiber is formed when thin strands of silica-

based or other formulation glass are extruded into many

fibers with small diameters suitable for textile processing

Jute fibre has some unique physical properties like high

tenacity, bulkiness, sound & heat insulation property, low

thermal conductivity, antistatic property etc. Due to these

qualities, jute fiber is more suited for the manufacture of

technical textiles in certain specific areas. Moreover, the

image of jute as a hard and unattractive fiber does not affect

its usage in technical textiles. In this project, work epoxy

used is polyflex GR.200-14. The choice of a resin system

for use in any component depends on a number of its

characteristics, with the following probably being the most

important for most composite structures

1) Adhesive properties

2) Mechanical properties

3) micro-cracking resistance

4) Fatigue resistance

5) Degradation from water ingress.

6) Racking resistance

A. Specimen for Testing:

Each composite board was cut into test samples. The cutting

processes were using handsaw and other equipment’s. All

specimens test were conditioned based on the standard

procedures of ASTM. The test specimens were done in the

room condition of 23 ± 2 0C in temperature and with

relative humidity 50±5% for not less than 40 hours prior to

the property assessment test.

S.

No Test

ASTM

standard

Specimen

size(mm)

1 Tensile test D3039 250X25X3

2 Moisture

absorption D5229 100X100

3 Izod impact

testing D4812 64X12.7X3.2

Table 1: ASTM Standards for specimen preparation

III. RESULT AND DISCUSSION

Tensometer apparatus is used find the tensile strength of the

composite specimen. Tensometer is the device used to find

the young’s modulus of a material and other tensile

properties of materials.

Analysis the Mechanical Behaviour of Jute Fiber Composite an Integrated Approach

(IJSRD/Vol. 3/Issue 10/2015/052)


Fig. 1: Tensile Tests

Chopped Jute Fiber and Multi Axial Glass Fiber

Specimen Max

load(KN)

Max Stress

(N/mm2)

Max

strain

1 150 2.4 1.012

2 100 1.6 1.02

3 200 3.2 1.008

Bi axial jute fiber and woven roving glass fiber

1 150 2.4 1.008

2 50 0.8 1.02

3 100 1.6 1.016


1 300 4.8 1.008

2 350 5.6 1.016

3 550 8.8 1.012

Table 1: tensile properties of jute fiber composite

A. Impact Property:

Chopped jute fiber and multi axial glass fiber

Specimen

Energy

consumed

for free

fall(kg/m)

Energy

consumed

for break

the

specimen

(kg/m)

Energy

consumed

in kg/m

Impact

strength

in

N/mm2

1 1.2 1.5 0.3 72.26

2 1.2 1.5 0.3 72.26

3 1.2 1.5 0.3 72.26


1 1.2 1.6 0.4 96.40

2 1.2 1.7 0.5 120.54

3 1.2 1.6 0.4 96.40

Bi axial jute fiber and multi axial glass fiber

1 1.2 1.9 0.7 168.79

2 1.2 1.9 0.7 168.79

3 1.2 1.8 0.6 96.40

Table 2: Impact Test Readings

B. Water Absorption

S.No Time

(hours)

Chopped jute fiber and multi

axial glass fiber

Bi axial jute fiber and woven

roving glass fiber

Bi axial jute fiber and woven

roving glass fiber

1 2 3 1 2 3 1 2 3

1 0 74.31 68.78 70.52 57.21 60.58 62.27 56.96 51.90 52.13

2 3 76.73 69.93 71.49 57.63 60.75 62.74 57.08 52.02 52.55

3 6 76.80 69.98 71.69 57.75 60.82 62.97 57.35 52.18 52.74

4 9 77.02 70.00 71.91 57.83 60.95 62.99 57.47 52.23 52.89

5 12 77.23 71.03 72.00 57.95 61.05 63.00 57.58 52.32 52.92

6 15 77.46 71.10 72.29 58.00 61.24 63.14 57.66 52.43 52.99

7 18 77.63 71.13 72.38 58.13 61.35 63.23 57.78 52.52 53.05

8 21 77.90 71.18 72.49 58.23 61.44 63.27 57.88 52.76 53.10

9 24 78.02 71.22 72.52 58.29 61.54 63.39 57.91 52.81 53.28

10 27 78.18 71.33 72.60 58.30 61.65 63.46 57.99 52.97 53.33

11 30 78.25 71.46 72.65 58.43 61.73 63.60 58.00 53.02 53.47

12 33 78.34 71.59 72.73 58.66 61.89 63.74 58.12 53.16 53.53

13 36 78.56 71.64 72.91 58.82 61.91 63.93 58.34 53.35 53.79

Table 3: water absorption test readings

Material

Amount of water

absorbed

(g)

Percentage of water

absorbed

(%)

Chopped jute fiber and multi axial glass fiber

Specimen 1 4.25 5.71











Table 4: water absorption test readings

IV. CONCLUSION

This work shows that successful fabrication of jute fiber

reinforced epoxy composites with different fiber lengths is

possible by simple hand up technique and the mechanical

properties are analyzed. The tensile and impact properties

are higher than other fiber-reinforced composites and water

absorption capacity is less compared to sisal and banana

fiber. It is important to remark that results show that

automotive components made of natural composites are to

be lighter than glass composites to present better

environmental performance.

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analysis the mechanical behaviour of jute fiber composite an integrated approach

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