scholarly journals Stress-strain dependence for soy-protein nanofiber mats

2012 ◽  
Vol 111 (4) ◽  
pp. 044906 ◽  
Author(s):  
S. Khansari ◽  
S. Sinha-Ray ◽  
A. L. Yarin ◽  
B. Pourdeyhimi
Keyword(s):  
Soy Protein ◽  
Stress Strain ◽  
Strain Dependence ◽  
Nanofiber Mats

Effect of Chemical and Physical Cross-Linking on Tensile Characteristics of Solution-Blown Soy Protein Nanofiber Mats

2012 ◽  
Vol 51 (46) ◽  
pp. 15109-15121 ◽  
Author(s):  
S. Sinha-Ray ◽  
S. Khansari ◽  
A. L. Yarin ◽  
B. Pourdeyhimi
Keyword(s):  
Soy Protein ◽  
Cross Linking ◽  
Nanofiber Mats

The Strain Dependence of Rubber Viscoelasticity. III. Natural and Butyl Rubber at High Extensions

1962 ◽  
Vol 35 (4) ◽  
pp. 927-936
Author(s):  
P. Mason
Keyword(s):  
Energy Function ◽  
Strain Energy ◽  
Strain Energy Function ◽  
Strain Curve ◽  
Wide Frequency Range ◽  
Butyl Rubber ◽  
Frequency Range ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Strain Dependence

Abstract In previous papers in this series the linear viscoelastic behavior of gum and filled rubbers has been studied at mean extensions up to 100%. Linearity was assured by allowing each specimen to relax at the required extension to its equilibrium state and then measuring the complex Young's modulus for very small strains superimposed upon this equilibrium extension. Analysis of the data was made either in terms of a Mooney strain-energy function or, more generally, by relation to the experimentally determined equilibrium stress-strain curve of the material. At much higher strains, however, the use of a strain-energy function is invalidated by the hysteretic behavior of the rubber, and the determination of a stress-strain curve at anything resembling equilibrium becomes increasingly difficult. Consequently, in the region of high strain it is preferable to examine the strain dependence of the viscoelasticity without involving a direct comparison with the equilibrium behavior. In principle, the most significant analysis would be obtained from a study of the strain dependence of the relaxation or retardation spectrum. The long-time end of the spectrum could perhaps be measured using a refined creep or stress relaxation technique, although considerable care would be required to separate the effects from the residual behavior resulting from the initial large elongation. In the rubber-glass transition region, with which this work is primarily concerned, the difficulty lies in making measurements over a sufficiently wide frequency range. Normally the Williams—Landel—Ferry (WLF) equation would be used to transform constant-frequency data from a wide temperature range to the equivalent isothermal spectrum over a wide frequency range; however, the validity of this equation has been confirmed only for amorphous polymers, and its application to highly stretched, anisotropic rubber involves several untested assumptions as discussed further below. The main object of the present paper is to describe the observed variations in the viscoelasticity of natural and butyl rubber over a wide range of extension and temperature, although, of necessity, over a limited range of frequency. In addition, a tentative indication of the influence of strain upon the relaxation spectra is given, and the implications of this are examined.

scholarly journals Stress/strain Dependence of Critical Current in Zr Reinforced Ag/Bi(2212) Superconducting Tape Externally Reinforced with CuAg.

1998 ◽  
Vol 33 (12) ◽  
pp. 760-765
Author(s):  
Kazumune KATAGIRI ◽  
Koichi KASABA ◽  
Yoshitaka SHOJI ◽  
Masaki ISHIZAKI ◽  
Kazuo WATANABE ◽  
...  
Keyword(s):  
Critical Current ◽  
Stress Strain ◽  
Strain Dependence ◽  
Superconducting Tape

Antibacterial activity of photocatalytic electrospun titania nanofiber mats and solution-blown soy protein nanofiber mats decorated with silver nanoparticles

2013 ◽  
Vol 34 ◽  
pp. 35-40 ◽  
Author(s):  
Yiyun Zhang ◽  
Min Wook Lee ◽  
Seongpil An ◽  
Suman Sinha-Ray ◽  
Shahrzad Khansari ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Soy Protein ◽  
Nanofiber Mats

Stress/strain dependence of critical current in Cu-Ag externally reinforced Ag-Zr/Bi-2212 superconducting tapes

Cryogenics ◽  
1999 ◽  
Vol 39 (5) ◽  
pp. 453-458 ◽  
Author(s):  
K Katagiri ◽  
K Kasaba ◽  
Y Shoji ◽  
M Ishizaki ◽  
K Watanabe ◽  
...  
Keyword(s):  
Critical Current ◽  
Superconducting Tapes ◽  
Stress Strain ◽  
Strain Dependence

Stress/strain dependence of ac loss and critical current of Bi2Sr2Ca2Cu3O10 reinforced tape

2004 ◽  
Vol 85 (20) ◽  
pp. 4687-4689 ◽  
Author(s):  
Guo Min Zhang ◽  
Justin Schwartz ◽  
P. V. P. S. S. Sastry ◽  
Liang Zhen Lin ◽  
Li Ye Xiao ◽  
...  
Keyword(s):  
Critical Current ◽  
Ac Loss ◽  
Stress Strain ◽  
Strain Dependence
Sign in / Sign up

Export Citation Format

Share Document