EFFECTS OF PROCESSING TEMPERATURE AND LAYUP ON SPRINGBACK

Tests were performed to assess the effects of processing conditions an d laminate layup on the change in shape (springback). Twelve inch long and one inch wide coupons made of Fiberite T300/976 graphite/epoxy we re tested. Coupons of different layups were cured using different type s of molds and different types of vacuum bagging arrangements. The cur ing was performed with different temperature cycles. Springback was me asured from the change in shape of initially flat coupons. The results indicated the effects of the applied temperature, applied pressure, m aterial of the mold, arrangement of the teflon surrounding the coupon, and laminate layup on springback.