Impact Resistance of the Stiffened Panel With Fiber Stitching

• Main Authors: WANG, MING-RAN, 王銘仁
• Other Authors: WIN-BEN YOUNG
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/30902846074823396213

碩士 === 國立成功大學 === 航空太空工程學系 === 84 === In the resin transfer molding (RTM) process , the fiber preform can be made in either 2-D or 3-D forms . In order to reduce the cost of production, 2-D fiber proform is preferred whenever it is adequate . For a stiffened panel made of 2-D fiber preform , delamination usually occurs in the joint of the stiffener to the panel as subjected to impact , and propagates rapidly to the rest of areas . This study is to investigate the effect of the through thickness Kevlar fiber stitching of the fiber preforms on the integrity of the stiffened panel . Several type of stitching patterns were tested to evaluate their influences . It is concluded that through thickness fiber stitching could provide better resistance to crack propagation as subjected to impact and have higher toughness .