Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser
The fracture behavior of quasi-brittle material exhibits commonly brittle behavior with some ductility in the fracture processing zone. Therefore, a matrix of experimental works is performed to investigate the failure behaviors based on a parameter known as brittleness number, which is a measure of...
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doaj-0a72f35f5c5142b7ba15ab6820d28f192021-09-05T14:00:28ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592014-03-0121228128810.1515/secm-2013-0038Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiserMohammed Y.0Hassan Mohamed K.1El-Ainin H Abu2Hashem A.M.3Faculty of Engineering, Department of Mechanical Engineering, South Valley University, Qena 83521, EgyptFaculty of Engineering, Department of Mechanical Engineering, South Valley University, Qena 83521, EgyptFaculty of Engineering, Department of Production and Design Engineering, Minia University, Minia 61111, EgyptFaculty of Engineering, Department of Mechanical Engineering, South Valley University, Qena 83521, EgyptThe fracture behavior of quasi-brittle material exhibits commonly brittle behavior with some ductility in the fracture processing zone. Therefore, a matrix of experimental works is performed to investigate the failure behaviors based on a parameter known as brittleness number, which is a measure of brittle behaviors. Glass fiber-reinforced epoxy laminates of three stacking sequences, cross-ply [0/90]2s and two quasi-isotropic [0/45/90]2s and [0/45/90/-45]s, are manufactured using hand lay-up technique. A matrix of different specimen geometric scaling with open hole of the same material is used. The fracture energy GIC and nominal strength of these composite laminates are measured experimentally using compact tension test, center crack specimen, and tension test, respectively. The results showed that the increase of homogeneity of composite laminates, which is introduced by inserting a certain angle ply for the laminate structure, enhanced the material ductility as the brittle number increased. The larger size of specimen leads to the increase of brittleness for the same stacking sequences due to the increase of stress concentration factor.https://doi.org/10.1515/secm-2013-0038brittle fracturebrittleness numbercomposite laminatesductile fracturestacking sequence |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohammed Y. Hassan Mohamed K. El-Ainin H Abu Hashem A.M. |
spellingShingle |
Mohammed Y. Hassan Mohamed K. El-Ainin H Abu Hashem A.M. Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser Science and Engineering of Composite Materials brittle fracture brittleness number composite laminates ductile fracture stacking sequence |
author_facet |
Mohammed Y. Hassan Mohamed K. El-Ainin H Abu Hashem A.M. |
author_sort |
Mohammed Y. |
title |
Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser |
title_short |
Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser |
title_full |
Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser |
title_fullStr |
Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser |
title_full_unstemmed |
Effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser |
title_sort |
effect of stacking sequence and geometric scaling on the brittleness number of glass fiber composite laminate with stress raiser |
publisher |
De Gruyter |
series |
Science and Engineering of Composite Materials |
issn |
0792-1233 2191-0359 |
publishDate |
2014-03-01 |
description |
The fracture behavior of quasi-brittle material exhibits commonly brittle behavior with some ductility in the fracture processing zone. Therefore, a matrix of experimental works is performed to investigate the failure behaviors based on a parameter known as brittleness number, which is a measure of brittle behaviors. Glass fiber-reinforced epoxy laminates of three stacking sequences, cross-ply [0/90]2s and two quasi-isotropic [0/45/90]2s and [0/45/90/-45]s, are manufactured using hand lay-up technique. A matrix of different specimen geometric scaling with open hole of the same material is used. The fracture energy GIC and nominal strength of these composite laminates are measured experimentally using compact tension test, center crack specimen, and tension test, respectively. The results showed that the increase of homogeneity of composite laminates, which is introduced by inserting a certain angle ply for the laminate structure, enhanced the material ductility as the brittle number increased. The larger size of specimen leads to the increase of brittleness for the same stacking sequences due to the increase of stress concentration factor. |
topic |
brittle fracture brittleness number composite laminates ductile fracture stacking sequence |
url |
https://doi.org/10.1515/secm-2013-0038 |
work_keys_str_mv |
AT mohammedy effectofstackingsequenceandgeometricscalingonthebrittlenessnumberofglassfibercompositelaminatewithstressraiser AT hassanmohamedk effectofstackingsequenceandgeometricscalingonthebrittlenessnumberofglassfibercompositelaminatewithstressraiser AT elaininhabu effectofstackingsequenceandgeometricscalingonthebrittlenessnumberofglassfibercompositelaminatewithstressraiser AT hashemam effectofstackingsequenceandgeometricscalingonthebrittlenessnumberofglassfibercompositelaminatewithstressraiser |
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