Structural mass irregularities and fiber volume influence on morphology and mechanical properties of unsaturated polyester resin in matrix composites.

Abstract:

:This paper presents the comparative results of a current study on unsaturated polyester resin (UPR) matrix composites processed by filament winding method, with cotton spun yarn of different mass irregularities and two different volume fractions. Physical and mechanical properties were measured, namely ultimate stress, stiffness, elongation%. The mechanical properties of the composites increased significantly with the increase in the fiber volume fraction in agreement with the Counto model. Mass irregularities in the yarn structure were quantitatively measured and visualized by scanning electron microscopy (SEM). Mass irregularities cause marked decrease in relative strength about 25% and 33% which increases with fiber volume fraction. Ultimate stress and stiffness increases with fiber volume fraction and is always higher for yarn with less mass irregularities.

journal_name

J Adv Res

authors

Ahmed K,Nasir M,Fatima N,Khan KM,Zahra DN

doi

10.1016/j.jare.2014.06.007

subject

Has Abstract

pub_date

2015-11-01 00:00:00

pages

833-8

issue

6

eissn

2090-1232

issn

2090-1224

pii

S2090-1232(14)00081-2

journal_volume

6

pub_type

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