Compressive Elasticity of a Fiber Assembly.

概要

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The compressive phenomena of a textile fiber assembly have been analyned by using some elastic models and the several factors affecting the phenomena have been studied. Within a low range of compressive stress, it is possible to explain the compressive phenomena by the following models : (1) The fiber assembly can be assumed to be a homogeneous elastic body. (2) The compressive elasticity of the assembly can be represented by the summation of the bending of each fibrous element as the elastic beam. The difference in the thickness of a sample acts on the logarithmic stress strain diagram as the shift, parallel to the strain axis. The thickness and the amount of the shift can be related by an exponential function. When the area of a sample is infinitely greater than that of a compressive plate, the effective pressure increases with a decrease in the area of the compressive plate in an exponential fashion.
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