The simple theoretical model previously considered [1] was inadequate in some respects to provide a complete account of the observed elasto-mechanical behavior of a pleat when extended. Factors now included are the radius of curvature at the pleat and the variation in fabric stiffness as a function of tension. The use of additional parameters to take account of these effects permits a very good description of the ob served behavior. Values of "initial pleat angle" and "initial fabric stiffness" can be determined from experimental results of longitudinal extension and lateral deflection as a function of load.
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References
1.
Holdaway, H.W. , TEXTILE RESEARCH JOURNAL30, 296 (1960).
2.
Love, A.E.H., "A Treatise on the Mathematical Theory of Elasticity," Cambridge University Press, 449 (1952).
