On the Rheological Properties of Paper

Part 4. Anisotmpy of Medlanical Properties of Paper

Abstract

Explanation as regard anisotropy of mechanical properties of paper was tried from microscopic viscoelastic view point.
1) Assuming elliptic distribution of hydrogen bond in paper, anisotropy of apparent youngs modulus and second elastic constant was explained.
2) Result of assuming elliptic distribution of hydrogen bond, Young's modulus or strain under constant loads has not elliptic distribution.
These theoretical results correspond to some experimental data, but it is not decided.