Effects of coating on dynamic stress concentration in fiber reinforced composites

2021 ◽  
Vol 222-223 ◽  
pp. 111029
Author(s):  
Xiangjun Peng ◽  
Wei He ◽  
Fengxian Xin ◽  
Guy M. Genin ◽  
Tian Jian Lu
Keyword(s):  
Stress Concentration ◽  
Dynamic Stress ◽  
Fiber Reinforced Composites ◽  
Dynamic Stress Concentration ◽  
Reinforced Composites ◽  
Fiber Reinforced

Microstructures of the Fiber-Round Hole of the Chafer Cuticle

2009 ◽  
Vol 79-82 ◽  
pp. 199-202
Author(s):  
Xin Yan Wu ◽  
Fu Ling Guan ◽  
Bin Chen ◽  
You Wei Wang
Keyword(s):  
Mechanical Properties ◽  
Stress Concentration ◽  
Composite Laminates ◽  
3D Models ◽  
Fiber Reinforced Composites ◽  
Round Hole ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Protein Matrix ◽  
Design And Development

In this paper, microstructure and mechanical properties of the chafer cuticle were investigated. The microstructures of the chafer cuticle were first observed with a SEM. It showed that the cuticle is a kind of chitin-fiber-reinforced biocomposite with protein matrix. There are some holes existing in the chafer cuticle and the fibers around hole are continuous. Based on the observed results of the SEM, the analyses of 3D models on the simple composite elements with fiber-round hole were conducted. The result showed the microstructures of composite laminates with fiber-round holes can decrease the stress concentration and well transfer the stress. So it can improve the strength and toughness of the composite laminates included holes. These conclusions may present a bio-inspired approach for design and development of advanced man-made fiber-reinforced composites.

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