Low-Velocity Impact Dynamic Behavior of Laminated Composite Nonprismatic Folded Plate Structures

2005 ◽  
Vol 131 (7) ◽  
pp. 678-688 ◽  
Author(s):  
Kyoung Sik Chun ◽  
Samuel Kinde Kassegne
Keyword(s):  
Dynamic Behavior ◽  
Laminated Composite ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Plate Structures ◽  
Velocity Impact

scholarly journals Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Molecules ◽  
2019 ◽  
Vol 24 (18) ◽  
pp. 3367 ◽  
Author(s):  
Ling Chen ◽  
Li-Wei Wu ◽  
Qian Jiang ◽  
Da Tian ◽  
Zhili Zhong ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Laminated Composite ◽  
Areal Density ◽  
Low Velocity Impact ◽  
Interlaminar Fracture Toughness ◽  
Low Velocity ◽  
Velocity Impact ◽  
Interlaminar Fracture ◽  
Impact Performance ◽  
Carbon Fiber Epoxy

The effects of thermoplastic polyimide (PI) and polypropylene (PP) fibers and areal density of toughened layer on interlaminar fracture toughness and impact performance of carbon fiber/epoxy (CF/EP) laminated composites were studied. Mode I interlaminar fracture toughness (GIC) was analyzed via double cantilever beam (DCB) tests. When comparing for the toughener type, PI played a positive role in enhancing the mode-I fracture toughness, while PP was not effective due to the less fiber bridge formed during composite curing. The toughening effects of areal density of PI were further investigated by end notched flexure (ENF) testing and low velocity impact testing to better understand the toughening mechanisms. The results revealed that the toughening effect reached its best effectiveness when the areal density of toughened layer was 30 g/m2. Compared with the control group, GIC and GIIC of CF/EP laminated composite were increased by 98.49% and 84.07%, and Fmax and Ee were enhanced by 92.38% and 299.08% under low velocity impact. There is no obvious delamination phenomenon on the surface of laminates after low velocity impact, indicating the improved interlaminar and impact performance of laminated composite.

Dynamic behavior of CHS-SHS tubular T-joints subjected to low-velocity impact loading

2019 ◽  
Vol 183 ◽  
pp. 720-740 ◽  
Author(s):  
Fei Gao ◽  
Zigang Xiao ◽  
Xingquan Guan ◽  
Hongping Zhu ◽  
Guofeng Du
Keyword(s):  
Dynamic Behavior ◽  
Impact Loading ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
T Joints ◽  
Velocity Impact
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