The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates
The dynamic mechanical behavior of thermoplastic composites over a wide range of strain rates has become an important research topic for extreme environmental survivability in the fields of military protection, aircraft safety, and aerospace engineering. However, the dynamic compression response in...
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doaj-0ddbc91d7f904e9da054ec836d9fe6332020-11-24T20:57:13ZengMDPI AGMaterials1996-19442018-11-011111231210.3390/ma11112312ma11112312The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain RatesHuiran Zou0Weilong Yin1Chaocan Cai2Bing Wang3Ankang Liu4Zhen Yang5Yibin Li6Xiaodong He7Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, ChinaThe dynamic mechanical behavior of thermoplastic composites over a wide range of strain rates has become an important research topic for extreme environmental survivability in the fields of military protection, aircraft safety, and aerospace engineering. However, the dynamic compression response in the out-of-plane direction, which is one of the most important loading conditions resulting in the damage of composite materials, has not been investigated thoroughly when compared to in-plane compression and tensile behavior under high strain rates. Thus, we used split Hopkinson pressure bar (SHPB) tests to conduct the out-of-plane compression test of cross-ply carbon fiber-reinforced polyetheretherketone (AS4/PEEK) composite laminates. Afterward, the damage mechanism under different strain rates was characterized by the macrostructure morphologies and scanning electron microscope micrographs. Two major cases of the incomplete failure condition and complete failure condition were discussed. Dynamic stress-strain curves expound the strain rates dependencies of elastic modulus, failure strength, and failure strain. An obvious spring-back process could be observed under incomplete failure tests. For the complete failure tests, secondary loading could be observed by reconstructing and comparing the dynamic response history. Lastly, various failure modes that occurred in different loading strain rates illustrate that the damage mechanism also shows obvious strain rate sensitivity.https://www.mdpi.com/1996-1944/11/11/2312AS4/PEEK laminateshigh strain ratecompression propertiesthermoplasticSHPB test |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Huiran Zou Weilong Yin Chaocan Cai Bing Wang Ankang Liu Zhen Yang Yibin Li Xiaodong He |
spellingShingle |
Huiran Zou Weilong Yin Chaocan Cai Bing Wang Ankang Liu Zhen Yang Yibin Li Xiaodong He The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates Materials AS4/PEEK laminates high strain rate compression properties thermoplastic SHPB test |
author_facet |
Huiran Zou Weilong Yin Chaocan Cai Bing Wang Ankang Liu Zhen Yang Yibin Li Xiaodong He |
author_sort |
Huiran Zou |
title |
The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates |
title_short |
The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates |
title_full |
The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates |
title_fullStr |
The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates |
title_full_unstemmed |
The Out-of-Plane Compression Behavior of Cross-Ply AS4/PEEK Thermoplastic Composite Laminates at High Strain Rates |
title_sort |
out-of-plane compression behavior of cross-ply as4/peek thermoplastic composite laminates at high strain rates |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2018-11-01 |
description |
The dynamic mechanical behavior of thermoplastic composites over a wide range of strain rates has become an important research topic for extreme environmental survivability in the fields of military protection, aircraft safety, and aerospace engineering. However, the dynamic compression response in the out-of-plane direction, which is one of the most important loading conditions resulting in the damage of composite materials, has not been investigated thoroughly when compared to in-plane compression and tensile behavior under high strain rates. Thus, we used split Hopkinson pressure bar (SHPB) tests to conduct the out-of-plane compression test of cross-ply carbon fiber-reinforced polyetheretherketone (AS4/PEEK) composite laminates. Afterward, the damage mechanism under different strain rates was characterized by the macrostructure morphologies and scanning electron microscope micrographs. Two major cases of the incomplete failure condition and complete failure condition were discussed. Dynamic stress-strain curves expound the strain rates dependencies of elastic modulus, failure strength, and failure strain. An obvious spring-back process could be observed under incomplete failure tests. For the complete failure tests, secondary loading could be observed by reconstructing and comparing the dynamic response history. Lastly, various failure modes that occurred in different loading strain rates illustrate that the damage mechanism also shows obvious strain rate sensitivity. |
topic |
AS4/PEEK laminates high strain rate compression properties thermoplastic SHPB test |
url |
https://www.mdpi.com/1996-1944/11/11/2312 |
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