摘要: The interlaminar fracture toughness in mode II and III of a number advanced composites was studied using beam type test specimens scanning electron microscopy. Special emphasis placed on elucidating the material aspects process quantifying effect matrix energy. energy independent crack extension while that for exhibited rather probablistic “resistance” behavior attributed to fiber bridging. initiation energy, considered here true measure G IIIC , coincided with G IIC . For either mode, region ahead tip considerable plastic deformations, severity is believed control laminate toughness. shear, hereby denoted as G SC (=G IIC =G IIIC ), accurately predicted from straightforward adhesive joint provided thickness coincide resin layer.
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