Abstract:
Some strength characteristics of jute fibres, yarns,
fibre bundles, yarn bundles, mats, and jute mat reinforced plastics,
have been determined. The hardness, fatigue life, flexural
modulus and percentage increase in weight due to immersion in
water of jute mat reinforced plastics have also been investigated.
The mean experimental value of strength of jute fibre bundle correlates
well with that obtained theoretically on the basis of Daniels'
theory. It was observed that the mean experimental value of strength
of jute fibre decreased with the increase of the gage length. There
is a reduction of about 40% in strength when the gage length changes
from 1 cm to 10 cm. The mean experimental values of strength
of jute fibre for three different gage lengths (10 cm, cm,i cm)
correlated well with that obtained theoretically on the basis of
Coleman's theory. The mean experimental value of strength of jute
mat was found to be about 1 times greater than the mean experimental
value of strength of jute yarn bundle.
It was Observed that the mean exPerimental values of strength
and Young's modulus of jute mat reinforced plastics increased with
the increase of volume fraction of jute in the composite. But the
experimental Young's modulus values of Jute reim'orcea PaSt1CS Were
found to he about 11/2 times greater than the theoretically calculated
values on the basis of Netting-type analysis.
It was also observed that the mean experimental values of
flexural modulus, fatigue life, hardness, and Dercentare increase
in weight due to immersion in water, of jute mat reinforced plastics
increased almost linearly with the increase of volume fraction of
jute in the composite.
Description:
This thesis is submitted to the Department of Mechanical Engineering, Bangladesh University of Engineering and Technology in partial fulfillment of the requirements for the degree of Master of Science in Mechanical Engineering, September 1986.
Cataloged from PDF Version of Thesis.
Includes bibliographical references (pages 45-47).
