Analisis Pengaruh Orientasi Serat Material Komposit Bermatriks Serat Pelepah Pisang Terhadap Nilai Tarik Dan Sifat Fisik

Aprian, Ferdy (2025) Analisis Pengaruh Orientasi Serat Material Komposit Bermatriks Serat Pelepah Pisang Terhadap Nilai Tarik Dan Sifat Fisik. Sarjana (S1) thesis, Universitas Islam 45.

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Abstract

The purpose of this study was to determine the effect of fiber direction on banana stem
fiber composites reinforced with polyester resin on tensile value and physical
properties. The fiber used in this study was banana stem fiber and the matrix used was
Yukalac 157 BTNQ-EX polyester resub. The composite was made using the hand layup technique. The test to be carried out with a tensile test using the ASTM D638
standard. From the data that has been obtained and analyzed through the study, it can
be concluded that the highest tensile strength was obtained by the banana stem fiber
reinforced polyester resin composite with a 90° lamination direction with a value of
15.0539 N/mm2 while the lowest tensile strength was obtained by the 45° laminated
fiber direction composite, with a value of 6.98817 N/mm2. While the physical property
test showed that the average density value of each volume fraction variation was above
the JIS A509 - 2003 standard. The water absorption and thickness swelling values of
all fiber direction variations, both continuous fibers, woven fibers, and laminated
fibers were still below the maximum limit. The micro-test results show that the
composite has defects such as pulled out fibers, voids, and cracks in the matrix which
provide an overview of the quality and performance of the composite.

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