Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels
<b>[Objectives]</b> In order to investigate the ultimate strength of CFRP-reinforced cracked stiffened panel in ship structure repair process,<b>[Methods]</b> in this paper,nonlinear finite element method is used to analyze the ultimate strength of CFRP-reinforced cracked sti...
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Editorial Office of Chinese Journal of Ship Research
2019-08-01
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doaj-ec4bf6934a414434ba65a22b2654826c2020-11-25T03:25:12ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31852019-08-01144475410.19693/j.issn.1673-3185.01436201904007Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panelsShi Xinghua0Ren Hengjia1Xu Wenqiang2Zhang Jing3Wu Haijian4School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaChina Merchants Bureau Heavy Industry(Jiangsu) Co. Ltd., Nantong 226116, China<b>[Objectives]</b> In order to investigate the ultimate strength of CFRP-reinforced cracked stiffened panel in ship structure repair process,<b>[Methods]</b> in this paper,nonlinear finite element method is used to analyze the ultimate strength of CFRP-reinforced cracked stiffened panels subjected to axial compressive loads. Based on CFRP-reinforced cracked stiffened panel model,we compare the simulation results with the recorded test results,to verify the accuracy of the proposed method. By using double-side CFRP -reinforced cracked stiffened panel as the example,we study the ultimate strength of stiffened panel,and the peeling mechanism and the stress of the adhesive layer were analyzed.<b>[Results]</b> The results show that the ultimate strength of CFRP-reinforced cracked stiffened panels is significantly increased,and is close to the ultimate strength of stiffened panel with geometric initial defects;CFRP repairs the debonding of cracked stiffened panel after the ultimate strength is achieved.<b>[Conclusions]</b> The repair of the cracked stiffened panel by using CFRP can enhance the ultimate strength. It may provide guidance for the ships and offshore structure repair.http://www.ship-research.com/EN/Y2019/V14/I4/47Carbon Fiber Reinforced Polymer(CFRP)craked stiffened plateultimate strengthnonlinear finite element method |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shi Xinghua Ren Hengjia Xu Wenqiang Zhang Jing Wu Haijian |
spellingShingle |
Shi Xinghua Ren Hengjia Xu Wenqiang Zhang Jing Wu Haijian Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels Zhongguo Jianchuan Yanjiu Carbon Fiber Reinforced Polymer(CFRP) craked stiffened plate ultimate strength nonlinear finite element method |
author_facet |
Shi Xinghua Ren Hengjia Xu Wenqiang Zhang Jing Wu Haijian |
author_sort |
Shi Xinghua |
title |
Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels |
title_short |
Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels |
title_full |
Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels |
title_fullStr |
Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels |
title_full_unstemmed |
Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels |
title_sort |
simulation study on ultimate strength of cfrp-reinforced cracked stiffened panels |
publisher |
Editorial Office of Chinese Journal of Ship Research |
series |
Zhongguo Jianchuan Yanjiu |
issn |
1673-3185 1673-3185 |
publishDate |
2019-08-01 |
description |
<b>[Objectives]</b> In order to investigate the ultimate strength of CFRP-reinforced cracked stiffened panel in ship structure repair process,<b>[Methods]</b> in this paper,nonlinear finite element method is used to analyze the ultimate strength of CFRP-reinforced cracked stiffened panels subjected to axial compressive loads. Based on CFRP-reinforced cracked stiffened panel model,we compare the simulation results with the recorded test results,to verify the accuracy of the proposed method. By using double-side CFRP -reinforced cracked stiffened panel as the example,we study the ultimate strength of stiffened panel,and the peeling mechanism and the stress of the adhesive layer were analyzed.<b>[Results]</b> The results show that the ultimate strength of CFRP-reinforced cracked stiffened panels is significantly increased,and is close to the ultimate strength of stiffened panel with geometric initial defects;CFRP repairs the debonding of cracked stiffened panel after the ultimate strength is achieved.<b>[Conclusions]</b> The repair of the cracked stiffened panel by using CFRP can enhance the ultimate strength. It may provide guidance for the ships and offshore structure repair. |
topic |
Carbon Fiber Reinforced Polymer(CFRP) craked stiffened plate ultimate strength nonlinear finite element method |
url |
http://www.ship-research.com/EN/Y2019/V14/I4/47 |
work_keys_str_mv |
AT shixinghua simulationstudyonultimatestrengthofcfrpreinforcedcrackedstiffenedpanels AT renhengjia simulationstudyonultimatestrengthofcfrpreinforcedcrackedstiffenedpanels AT xuwenqiang simulationstudyonultimatestrengthofcfrpreinforcedcrackedstiffenedpanels AT zhangjing simulationstudyonultimatestrengthofcfrpreinforcedcrackedstiffenedpanels AT wuhaijian simulationstudyonultimatestrengthofcfrpreinforcedcrackedstiffenedpanels |
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1724598266542161920 |