fiber property
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2017 ◽  
Vol 4 (1) ◽  
pp. 167-188
Author(s):  
Le Yang ◽  
Tarynn M. Witten ◽  
Ramana M. Pidaparti

Abstract Fiber reinforced anisotropic material abounds in biological world. It has been demonstrated in previous theoretical and experimental works that growth of biological soft tubular tissue plays a significant role in morphogenesis and pathology. Here we investigate growth-induced buckling of anisotropic cylindrical tissue, focusing on the effects of type of growth(constraint/unconstraint, isotropic/anisotropic), fiber property(orientation, density and strength), geometry and any interaction between these factors. We studied one-layer and two-layer models and obtained a rich spectrum of results. For one-layer model, we demonstrate that circumferential fiber orientation has a consistent stabilizing effect under various scenarios of growth. Higher fiber density has a destabilizing effect by disabling high-mode buckling. For two-layer model, we found that critical buckling strain at inner boundary is an invariant under same isotropic growth rate ratio between inner/ outer layer(g1 /g0). Then we applied our model to wound healing and illustrate the effects of skin residual stress, fiber property, proliferation region width and wound size on the wound edge stability. We conclude that fiber-reinforcement is an important factor to consider when investigating growth induced instability of anisotropic soft tissue.


2014 ◽  
Vol 941-944 ◽  
pp. 1321-1324 ◽  
Author(s):  
Qian Li ◽  
Sai Nan Wei ◽  
Ji Ming Yao

In order to develop flexible absorbing fabric, three kinds of 58.3tex Ni-Fe fiber blended yarn which Ni-Fe fiber content was 8.34%, 11.11% and 13.89% were spun successfully and fabricated to different kinds of fabrics according to mental fiber property and electromagnetic spreading regulation. The reflectivity of fabrics were measured by the means of "arch testing method" in the range of 2-18 GHz with the change of fabric specifications. The results showed that the reflectivity of laminated fabrics were better than designed knitted fabrics and woven fabrics, revealed that the nickel iron fiber content and fabric specifications had significant effects on absorbing property.


2011 ◽  
Vol 332-334 ◽  
pp. 35-40 ◽  
Author(s):  
Jing Tang ◽  
Yi Zhang

based on investigation and sample testing, studied on fiber property of color rabbit hair. The color rabbit hair has good spinnability. Foreground of color rabbit hair was analyzed. Being comfortable, dressing property well and environment friendly, color rabbit hair products will play an important role in market. The suggestions were put out that new fashionable super products with color rabbit hair be produced and its added value increased. Color rabbit hair fur is also a good leather material. Offal hair of color rabbit may be used to new extending products. Color rabbit hair market possess good foreground. It should be developed constantly.


2011 ◽  
Vol 306-307 ◽  
pp. 1516-1519
Author(s):  
Zheng Fan Li ◽  
Guo Liang Liu ◽  
Chong Wen Yu

The pineapple leaf fiber is abundant in the tropics and subtropics regions in the world. The raw pineapple leaf fiber needs to be degummed before spinning. In this paper, the effect of alkali treatment on fiber property was studied. Compared to the fiber that not treated by alkali, fiber property improved by alkali treatment. At the same time, the influence of parameters of alkali treatment on fiber property was also discussed. With the concentration of sodium hydroxide solution increasing, the fineness, the tenacity, and the breaking elongation of pineapple fiber are all decreased. The effect of time on the fineness of degummed pineapple fiber is insignificant. With the increase of time, the tenacity of pineapple fiber is decreased slightly. However, the breaking elongation of pineapple fiber decreased at first, and then increased. As the temperature increase, the fineness of pineapple fiber increased then decreased. On the contrary, with the temperature increasing, the tenacity of pineapple fiber decreased firstly, and then increased. The breaking elongation of pineapple fiber decreased with the increase of temperature.


2011 ◽  
Vol 8 (3) ◽  
pp. 149-160 ◽  
Author(s):  
J. S. Jayaprabha ◽  
M. Brahmakumar ◽  
V. B. Manilal

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