5--THE FINITE-DEFORMATION THEORY OF PLAIN-WEAVE FABRICS PART III: THE SHEAR-DEFORMATION THEORY.

The over-all shear deformation, that is, the combined deformation of biaxial tensile and shear deformation is considered generally, and a theory by which the mechanical behaviour of fabrics in this slate can be determined is presented. Experiments are also described that were made to confirm the accuracy of these theories by using a new biaxial tensile tester for the measurement of the tensile and shearing properties of the fabrics and by using newly designed testing instruments for the measurement of yarn properties. Good agreement between the theoretical and observed data is shown, and the theories appear lo have considerable potentialities in the practical design of fabrics. [ABSTRACT FROM AUTHOR]