Investigation of the Tensile Stress Relaxation Phenomenon in Seamed Worsted Fabrics

Tensile stress relaxation behavior of a novel wide‐angle fabric/EPDM composite at room temperature

“…Figure 6 shows the time stress curves for the fabric/EPDM composite with the different fabric structures at the same initial stress. All curves showed the typical stress relaxation behavior (the time‐dependent stress attenuation), 14–18,38 but the degree of relaxation was different, indicating that the introduction of different fabric structures did not change the stress relaxation mechanism of the composite. In the following, the W‐60 composite will be used as an example to deeply explore its stress relaxation mechanism.…”

“…Numerous scholars divided three stages, which were named fast relaxation (RR), slow relaxation (SR), and transition stage between them, roughly based on the stress relaxation curve characteristics, which was inaccurate. [10][11][12][13][14] Figure 7B calculates the slope of the overall time curve, also known as the relaxation rate in the stress relaxation. When the slope was >0, the W-60 composite was in the stretch phase.…”

“…24 Chen et al fitted the relaxation modulus of PTFE materials by means of the fractional-order Maxwell's model. 25 Several studies 11,14,[26][27][28][29] compared and analyzed the applicability of mechanical models (two-component Maxwell's model, modified model of standard linear solid, Alfrey's model, and three-component Maxwell's model with parallel-connect nonlinear spring) to handle experiments relaxation curves, and found that for the mechanical models with higher component values, the treatment effect is excellent. Therefore, the threecomponent Maxwell's model with parallel-connect nonlinear spring was in the best agreement with the experimental relaxation curves of the analyzed fabric.…”

“…The rapid stress relaxation zoon consists mainly of the elastic deformation and ends quickly. The stress relaxation process mainly occurs in the slow stress relaxation zone, in which the internal stress gradually decreases until it is close to a constant value 10–14 . In the past decades, numerous scholars have studied the stress relaxation behavior and deformation mechanism of short fiber reinforced rubber composites.…”

“…The stress relaxation process mainly occurs in the slow stress relaxation zone, in which the internal stress gradually decreases until it is close to a constant value. [10][11][12][13][14] In the past decades, numerous scholars have studied the stress relaxation behavior and deformation mechanism of short fiber reinforced rubber composites. Geethamma et al studied the stress relaxation behavior of the short coconut shell fiber-reinforced NR composites under the influence of strain level, strain rate, and fiber loading.…”