The box and bottle core incorporate low cost tooling that provides support to the fiber preform before the manufacturing process of matrix infusion
原文:The trend in advanced composite material bridge design is towards utilizing a ‘‘sandwich’’ configuration, as shown in Fig. 1.The outer composite face sheets are designed to resist the in-plane forces induced by bending. The interior portion of the ‘‘sandwich’’ is the core. The function of the core is to resist the transverse shearing forces. A variety of core configurations is shown in Fig. 1. The box and bottle core incorporate low cost tooling that provides support to the fiber preform before the manufacturing process of matrix infusion.