Prediction of bending rigidity for laminated fabric with adhesive interlining by a laminate model considering tensile and in-plane compressive moduli

The purpose of this study is to predict bending rigidity of laminated fabric with adhesive interlining considered tensile and in-plane compressive moduli. The predicting method considering those moduli was proposed by theoretical derivation based on laminate model. Tensile and in-plane compressive moduli of neutral surface for face fabric and adhesive interlining respectively before laminating and modulus for bending rigidity were considered independently. The calculating equation for in-plane compressive modulus was proposed from the relationship between bending rigidities and tensile properties. The proposed predicting method was verified experimentally. Bending rigidities, tensile properties and thicknesses of adhesive interlinings, face fabrics and laminated fabrics with adhesive interlinings were measured by KES-FB system. The in-plane compressive moduli of adhesive interlinings were calculated by the proposed equation with the results of tensile properties for face fabrics. With the results of tensile and in-plane compressive moduli, the bending rigidities of laminated fabric with adhesive interlinings were calculated. The predicted bending rigidities considered with measured tensile properties and calculated in-plane compressive moduli were precisely closer to experimental results than the ones of the laminated model from our previous study. Therefore, this model gives a new way to predict bending rigidity of laminated fabric with adhesive interlining.