Applying Fuzzy Logic Model for Static Puncture Evaluation of Nonwoven Needle-Punched Polyester Fabrics

Nonwoven needle-punched fabrics are the mostcommon textile structures used as geotextiles. In mostapplications, geotextiles are subjected to compressive forces.These forces cause the layers to deform and eventually createpuncture. The present study develops an intelligent model forthe evaluation of static puncture resistance and real elongationof nonwoven needle-punched polyester fabrics using fuzzylogic method. The fuzzy logic expert system, contrary tomany other mathematical methods, can considerably forecastthe behavior of nonlinear complex phenomena. Parametersof needle penetration depth, needle punch density, andfabric areal weight were considered as input variables of thedesigned model. The experimental results were conductedby a universal strength tester based on the well-known staticpuncture (CBR) test method. The fuzzy model showed thatpuncture resistance increases with the enhancement of fabricareal weight, but excessive increase of the needling parameterscauses the puncture resistance to decrease. Furthermore, theresults of the model demonstrated that the fabric puncturereal elongation decreases, while the input variables increase.It was also observed that the real and predicted values ofpuncture resistance and puncture real elongation of thefabrics were in good agreement with very low absolute error.

کلیدواژه ها:

Fuzzy logic ، needle-punched fabric ، nonwoven ، puncture resistance ، real elongation