Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads

Because of its outstanding mechanical properties, carbon fiber reinforced plastic (CFRP) is widely used in structures bearing high-impact loads. In this study, based on the bridging model, the dynamic constitutive equations and yield criteria concerning the strain rate effect of composite material a...

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Main Authors: W Wu, L Liu, Y Chu, A Pi
Format: Article
Language:English
Published: MULTIPHYSICS 2018-03-01
Series:International Journal of Multiphysics
Online Access:http://journal.multiphysics.org/index.php/IJM/article/view/386
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author W Wu
L Liu
Y Chu
A Pi
author_facet W Wu
L Liu
Y Chu
A Pi
author_sort W Wu
collection DOAJ
description Because of its outstanding mechanical properties, carbon fiber reinforced plastic (CFRP) is widely used in structures bearing high-impact loads. In this study, based on the bridging model, the dynamic constitutive equations and yield criteria concerning the strain rate effect of composite material are used to analyze the optimal design and compressive strength of a CFRP laminate under high-impact compressive loads. The mechanical properties of laminates under different strain rates were calculated and compared with experimental results to verify the viability of improving the bridging model, where our theoretical results agreed with them. Structural design schemes based on this were analyzed and a ply scheme satisfying our requirements selected. Using this scheme, samples were manufactured and subjected to quasi-static and medium strain rate compressive tests, and the results agreed with theoretical calculations. This study can help design optimal CFRP structures for penetrator case under high-impact compressive loads and predict their properties.
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spelling doaj.art-16d3428f59ea492db3b34545c44591a32023-08-02T03:00:27ZengMULTIPHYSICSInternational Journal of Multiphysics1750-95482048-39612018-03-0112110.21152/1750-9548.12.1.57354Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive LoadsW Wu0L Liu1Y Chu2A Pi3State Key Laboratory of Explosion Science and Technology, Beijing Institute of TechnologySouthern Sichuan Machinery, Luzhou , ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of TechnologyState Key Laboratory of Explosion Science and Technology, Beijing Institute of TechnologyBecause of its outstanding mechanical properties, carbon fiber reinforced plastic (CFRP) is widely used in structures bearing high-impact loads. In this study, based on the bridging model, the dynamic constitutive equations and yield criteria concerning the strain rate effect of composite material are used to analyze the optimal design and compressive strength of a CFRP laminate under high-impact compressive loads. The mechanical properties of laminates under different strain rates were calculated and compared with experimental results to verify the viability of improving the bridging model, where our theoretical results agreed with them. Structural design schemes based on this were analyzed and a ply scheme satisfying our requirements selected. Using this scheme, samples were manufactured and subjected to quasi-static and medium strain rate compressive tests, and the results agreed with theoretical calculations. This study can help design optimal CFRP structures for penetrator case under high-impact compressive loads and predict their properties.http://journal.multiphysics.org/index.php/IJM/article/view/386
spellingShingle W Wu
L Liu
Y Chu
A Pi
Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads
International Journal of Multiphysics
title Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads
title_full Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads
title_fullStr Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads
title_full_unstemmed Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads
title_short Dynamic Mechanical Properties of Typical CFRP Laminate Under High-impact Compressive Loads
title_sort dynamic mechanical properties of typical cfrp laminate under high impact compressive loads
url http://journal.multiphysics.org/index.php/IJM/article/view/386
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