3420 切り欠き付ショートビーム試験によるFRPの層間破壊靱性の検討(S15-2 複合材料,S15 先端材料システムの強度・機能評価とメゾメカニックス)

抄録

This paper describes about interlaminar fracture toughness of FRP. Mode II interlaminar fracture toughness by 4ENF test is compared with interlaminar shear strength by DNT test and Mode II interlaminar fracture toughness by Notched Short Beam test. In addition, fracture surface of DNT specimen and Notched Short Beam specimen is observed by the scanning electron microscope (SEM). It seems that there is no relationship between Mode II interlaminar fracture toughness by 4ENF and interlaminar shear strength by DNT. But there is a good relation between 4ENF test and Notched Short Beam test.