Innovative technique in sheet forming of feminine personal protective armor by combined cyclic stretching and deep drawing method

Abstract

The developed technologies for creating the three-dimensional shape for the formation of feminine personal protective armor proved to be applicable in the case of high-performance protective triaxial fabric, made of polyester, Vectran, and Kevlar. The suggested method combines cyclic loading and deep forming under heat. Cup shape geometry was analyzed to get the relations between the cup volume and the cup diameter for different cup bra sizing systems. This work analyzed the factors of molding triaxial fabric in creating a three-dimensional shape to get a bra fitting essential for the comfort of the protective armor and to provide useful information about the treatment of different fabrics molding. A smoothly formed cup surface has a natural configuration of the breast shape and also provides unlimited designs. The suggested technology of fabric forming will architect fabric from 2D to construct the required 3D shapes. In this work, a setup was designed for heating the fabric accomplished with the application of variable cyclic loading. The procedure of forming bra cup shapes with the deep drawing that permits 3D fabric architects for the bra shapes of varied sizes was given.