Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates

The present work investigates the fabrication of Kevlar/epoxy and basalt/epoxy and Kevlar/basalt/epoxy hybrid composite laminates and compares their mechanical properties. Mechanical characterization tests, including tension, flexural, impact and hardness tests, as per ASTM standards, were conducted...

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Main Authors: Ramesh Velumayil, Anand Palanivel
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/7/1382
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author Ramesh Velumayil
Anand Palanivel
author_facet Ramesh Velumayil
Anand Palanivel
author_sort Ramesh Velumayil
collection DOAJ
description The present work investigates the fabrication of Kevlar/epoxy and basalt/epoxy and Kevlar/basalt/epoxy hybrid composite laminates and compares their mechanical properties. Mechanical characterization tests, including tension, flexural, impact and hardness tests, as per ASTM standards, were conducted on coupons cut out from the fabricated composite panels. A hand layup fabrication technique was used to fabricate composite panels with seven layers in them. Eight such laminates, with two containing pure Kevlar/epoxy and basalt/epoxy and the remaining ones containing Kevlar/basalt, were stacked in different sequences and impregnated in an epoxy matrix to provide a hybrid configuration. The microscopic examination of the fabricated laminates revealed that there was good bonding between the reinforcements and matrix material. Out of the eight composite panels including the hybrids, the ones with the pure basalt/epoxy exhibited more tensile and flexural strength than its Kevlar/epoxy counterpart due to its higher density value. The tensile and flexural strength of the hybrid laminates (i.e., combinations of basalt/Kevlar/epoxy) showed values in between pure basalt/epoxy and Kevlar/epoxy laminates in general. A similar trend was observed in terms of hardness and impact strength for the fabricated composite laminates.
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spelling doaj.art-9c9b8b1c3c314c35a52eb0219a26b9a42023-11-30T23:53:40ZengMDPI AGPolymers2073-43602022-03-01147138210.3390/polym14071382Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite LaminatesRamesh Velumayil0Anand Palanivel1Department of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai 600062, TN, IndiaDepartment of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai 600062, TN, IndiaThe present work investigates the fabrication of Kevlar/epoxy and basalt/epoxy and Kevlar/basalt/epoxy hybrid composite laminates and compares their mechanical properties. Mechanical characterization tests, including tension, flexural, impact and hardness tests, as per ASTM standards, were conducted on coupons cut out from the fabricated composite panels. A hand layup fabrication technique was used to fabricate composite panels with seven layers in them. Eight such laminates, with two containing pure Kevlar/epoxy and basalt/epoxy and the remaining ones containing Kevlar/basalt, were stacked in different sequences and impregnated in an epoxy matrix to provide a hybrid configuration. The microscopic examination of the fabricated laminates revealed that there was good bonding between the reinforcements and matrix material. Out of the eight composite panels including the hybrids, the ones with the pure basalt/epoxy exhibited more tensile and flexural strength than its Kevlar/epoxy counterpart due to its higher density value. The tensile and flexural strength of the hybrid laminates (i.e., combinations of basalt/Kevlar/epoxy) showed values in between pure basalt/epoxy and Kevlar/epoxy laminates in general. A similar trend was observed in terms of hardness and impact strength for the fabricated composite laminates.https://www.mdpi.com/2073-4360/14/7/1382hybrid laminatebasaltkevlarmechanical analysismorphological analysis
spellingShingle Ramesh Velumayil
Anand Palanivel
Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates
Polymers
hybrid laminate
basalt
kevlar
mechanical analysis
morphological analysis
title Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates
title_full Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates
title_fullStr Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates
title_full_unstemmed Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates
title_short Hybridization Effect on Mechanical Properties of Basalt/Kevlar/Epoxy Composite Laminates
title_sort hybridization effect on mechanical properties of basalt kevlar epoxy composite laminates
topic hybrid laminate
basalt
kevlar
mechanical analysis
morphological analysis
url https://www.mdpi.com/2073-4360/14/7/1382
work_keys_str_mv AT rameshvelumayil hybridizationeffectonmechanicalpropertiesofbasaltkevlarepoxycompositelaminates
AT anandpalanivel hybridizationeffectonmechanicalpropertiesofbasaltkevlarepoxycompositelaminates