ガラス繊維織物片段構造体の引張試験の特性

(段形状に沿った拘束治具の開発)

抄録

This work studied the in-plane tensile characteristic of glass fiber based fabrics structure sheet (GFSS) and for developing a pressure-adjustable fixture of the fabrics structure sheet. In order to reduce or avoid the stress concentration of a liner layer, which was caused by the hard contact between outside hard plates and inside multiple-pins, a corrugated-form-adjustable fixture, which could fasten the single face corrugated specimen with a certain length of fixing span, was developed. Using the proposed fixture, the in-plane tensile test of machine directional and cross-machine directional specimens was investigated. Varying the numbers and diameters of inserted pins, the tensile strength was discussed. As the result, it was found that there were two peak maximum forces during the tensile elongation until reaching the breaking state. The first peak appeared to be the starting of liner layer breaking on one wide, while the second peak was to be the ending of corrugated layer elongation on another side. The peak maximum strength of specimen increased with the numbers of pins and affected by the diameter of pins.