Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions

The use of synthetic fibers such as glass fiber and aramid fiber carbon fiber as composite reinforcement is being increasingly applied in high performance applications since they provide certain advantage of specific high strength and stiffness as compared to metallic materials. In contrast, impl...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohd Sohaimi, Risby
Format:	Thesis
Language:	English English
Published:	2003
Subjects:	Glass fibers
Online Access:	http://psasir.upm.edu.my/id/eprint/7990/1/ITMA_2003_3_.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.7990
record_format	uketd_dc
spelling	my-upm-ir.79902023-11-29T08:32:32Z Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions 2003-08 Mohd Sohaimi, Risby The use of synthetic fibers such as glass fiber and aramid fiber carbon fiber as composite reinforcement is being increasingly applied in high performance applications since they provide certain advantage of specific high strength and stiffness as compared to metallic materials. In contrast, implementation of natural fiber as reinforcement has not yet received adequate attention from the research community. This study investigates the damage characterization and impact resistance of synthetic and natural fiber reinforced composite square plates subjected to the changes of impact loading and width over thickness (bId) ratio of the composite. For low velocity impact, the testing was performed using Dynatup 8250 equipped with GRC 930-1 Data Interpretation System on fabricated square plates with different impact energy levels and velocities. The severity of impact damage is macroscopically and microscopically investigated. A compressed gas gun equipped with velocity measurement system was designed and fabricated in order to facilitate the high velocity impact testing experimentations. From the results, it has been found that mechanical and impact properties of EFBC and CFC do not posses toughness and modulus as high as GRC. Although EFBC and CFC specimens eXllibit total perforation to the specimens at most impact velocities, EFBC specimen with plate thickness of 8 millimetres was found to have penetration resistance at 22 joules of impact energy level. This is due the performance of Coir as reinforcement in polymer composites is unsatisfactory and not comparable with other natural fibers due to its mechanical properties. It can also be conclude that the impact response of EFBC and CFC specimen chances significantly as the composite thickness increases. Impact damage was found to be in the forms of matrix cracking, fiber fracture and perforation. This study results can be a valuable reference in designing of lightweight composite structure and in developing a better understanding of test methods used to characterize impact behaviours. Glass fibers 2003-08 Thesis http://psasir.upm.edu.my/id/eprint/7990/ http://psasir.upm.edu.my/id/eprint/7990/1/ITMA_2003_3_.pdf text en public masters Universiti Putra Malaysia Glass fibers Institute of Advanced Technology Hammud, Abdel Magid Saleem English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Hammud, Abdel Magid Saleem
topic	Glass fibers
spellingShingle	Glass fibers Mohd Sohaimi, Risby Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions
description	The use of synthetic fibers such as glass fiber and aramid fiber carbon fiber as composite reinforcement is being increasingly applied in high performance applications since they provide certain advantage of specific high strength and stiffness as compared to metallic materials. In contrast, implementation of natural fiber as reinforcement has not yet received adequate attention from the research community. This study investigates the damage characterization and impact resistance of synthetic and natural fiber reinforced composite square plates subjected to the changes of impact loading and width over thickness (bId) ratio of the composite. For low velocity impact, the testing was performed using Dynatup 8250 equipped with GRC 930-1 Data Interpretation System on fabricated square plates with different impact energy levels and velocities. The severity of impact damage is macroscopically and microscopically investigated. A compressed gas gun equipped with velocity measurement system was designed and fabricated in order to facilitate the high velocity impact testing experimentations. From the results, it has been found that mechanical and impact properties of EFBC and CFC do not posses toughness and modulus as high as GRC. Although EFBC and CFC specimens eXllibit total perforation to the specimens at most impact velocities, EFBC specimen with plate thickness of 8 millimetres was found to have penetration resistance at 22 joules of impact energy level. This is due the performance of Coir as reinforcement in polymer composites is unsatisfactory and not comparable with other natural fibers due to its mechanical properties. It can also be conclude that the impact response of EFBC and CFC specimen chances significantly as the composite thickness increases. Impact damage was found to be in the forms of matrix cracking, fiber fracture and perforation. This study results can be a valuable reference in designing of lightweight composite structure and in developing a better understanding of test methods used to characterize impact behaviours.
format	Thesis
qualification_level	Master's degree
author	Mohd Sohaimi, Risby
author_facet	Mohd Sohaimi, Risby
author_sort	Mohd Sohaimi, Risby
title	Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions
title_short	Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions
title_full	Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions
title_fullStr	Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions
title_full_unstemmed	Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions
title_sort	experimental damage investigation of composite plates subjected to impact loading conditions
granting_institution	Universiti Putra Malaysia
granting_department	Institute of Advanced Technology
publishDate	2003
url	http://psasir.upm.edu.my/id/eprint/7990/1/ITMA_2003_3_.pdf
_version_	1794018708839989248

Experimental Damage Investigation of Composite Plates Subjected to Impact Loading Conditions

Similar Items