Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core

This study presented a new form of composite sandwich panels, with steel plates as facesheets and bonded glass fiber-reinforced polymer (GFRP) pultruded hollow square tubes as core. In this novel panel, GFRP and steel were optimally combined to obtain high bending stiffness, strength, and good ducti...

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Main Authors: Hai Fang, Huiyuan Shi, Yue Wang, Yujun Qi, Weiqing Liu
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2016/7159205
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author Hai Fang
Huiyuan Shi
Yue Wang
Yujun Qi
Weiqing Liu
author_facet Hai Fang
Huiyuan Shi
Yue Wang
Yujun Qi
Weiqing Liu
author_sort Hai Fang
collection DOAJ
description This study presented a new form of composite sandwich panels, with steel plates as facesheets and bonded glass fiber-reinforced polymer (GFRP) pultruded hollow square tubes as core. In this novel panel, GFRP and steel were optimally combined to obtain high bending stiffness, strength, and good ductility. Four-point bending test was implemented to analyze the distribution of the stress, strain, mid-span deflection, and the ultimate failure mode. A section transformation method was used to evaluate the stress and the mid-span deflection of the sandwich panels. The theoretical values, experimental results, and FEM simulation values are compared and appeared to be in good agreement. The influence of thickness of steel facesheet on mid-span deflection and stress was simulated. The results showed that the mid-span deflection and stress decreased and the decent speed was getting smaller as the thickness of steel facesheet increases. A most effective thickness of steel facesheet was advised.
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institution Kabale University
issn 1687-8434
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language English
publishDate 2016-01-01
publisher Wiley
record_format Article
series Advances in Materials Science and Engineering
spelling doaj-art-3e816d2c793347b9a167de0cdb9c26402025-02-03T01:06:47ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/71592057159205Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP CoreHai Fang0Huiyuan Shi1Yue Wang2Yujun Qi3Weiqing Liu4College of Civil Engineering, Nanjing Tech University, Nanjing, ChinaSchool of Civil Engineering, Southeast University, Nanjing, ChinaCollege of Civil Engineering, Nanjing Tech University, Nanjing, ChinaCollege of Civil Engineering, Nanjing Tech University, Nanjing, ChinaAdvanced Engineering Composites Research Center, Nanjing Tech University, Nanjing, ChinaThis study presented a new form of composite sandwich panels, with steel plates as facesheets and bonded glass fiber-reinforced polymer (GFRP) pultruded hollow square tubes as core. In this novel panel, GFRP and steel were optimally combined to obtain high bending stiffness, strength, and good ductility. Four-point bending test was implemented to analyze the distribution of the stress, strain, mid-span deflection, and the ultimate failure mode. A section transformation method was used to evaluate the stress and the mid-span deflection of the sandwich panels. The theoretical values, experimental results, and FEM simulation values are compared and appeared to be in good agreement. The influence of thickness of steel facesheet on mid-span deflection and stress was simulated. The results showed that the mid-span deflection and stress decreased and the decent speed was getting smaller as the thickness of steel facesheet increases. A most effective thickness of steel facesheet was advised.http://dx.doi.org/10.1155/2016/7159205
spellingShingle Hai Fang
Huiyuan Shi
Yue Wang
Yujun Qi
Weiqing Liu
Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core
Advances in Materials Science and Engineering
title Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core
title_full Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core
title_fullStr Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core
title_full_unstemmed Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core
title_short Experimental and Theoretical Study of Sandwich Panels with Steel Facesheets and GFRP Core
title_sort experimental and theoretical study of sandwich panels with steel facesheets and gfrp core
url http://dx.doi.org/10.1155/2016/7159205
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AT huiyuanshi experimentalandtheoreticalstudyofsandwichpanelswithsteelfacesheetsandgfrpcore
AT yuewang experimentalandtheoreticalstudyofsandwichpanelswithsteelfacesheetsandgfrpcore
AT yujunqi experimentalandtheoreticalstudyofsandwichpanelswithsteelfacesheetsandgfrpcore
AT weiqingliu experimentalandtheoreticalstudyofsandwichpanelswithsteelfacesheetsandgfrpcore