Study Of The Mechanical Behavior Of Textile Protective Materials

The aim of this paper is to study the mechanical behavior of knitted fabrics which are used in protection gloves at large deformation and different strain rates in terms of extensionrecovery cycling. The non linear viscoelastic model proposed here is based on the standard solid model. It contains three nonlinear spring and damper elements. The idea is to consider that by analogy with elastomers the mechanical behavior of the fabric in terms of hysteresis loop is due to the contribution of two parts the first one represents the equilibrium state of the fabric and the second one is due to the deviation from this equilibrium. Then the stress-strain behavior of the fabric at different strain rates can be computed using the same parameters determined at one value of strain rate. A good agreement has been obtained between the experimental and theoretical results.