Application of Response Surface Methodology and FEM in Optimization Fabric Bagging Deformation in Stenter Machine

In the stenter-finishing process changed the mechanical and chemical construction of the fabric, and causes the necessary characteristics to be given to the fabric for the final use of the garment. In the present study, by applying the simulated laboratory conditions as well as the simulation of the finite element method, the mechanical properties of the fabric in the stenter machine have been optimized. Initially, popular laboratory experiments were performed on six general worsted samples after that by changing stenter condition the effect of temperature (due to two factors of tension and speed), fiber percentage and fabric weight evaluated with experimental design (DOE) method using Minitab Software. Then, with Central Composite Design method, the mechanical properties of tensile strength and bagging deformation force were optimized. The results showed that temperature, material type and weight at the statistical level (sig.<0.001) significant on the strength and bagging deformation force. Then, by designing in TexGen software and transferring the design to Abaqus software, the experimental results of bagging deformation force were simulated with finite element method. The relationship between the results and the simulated conditions has a coefficient of determination of R2 = 0.98 (sig. <0.001), which can be suitable for simulation in stenter processes.