剛性補強型ENF試験片による複合材料の層間破壊挙動(<小特集>高分子系複合材料)

概要

論文の詳細を見る
The ENF testing forinterlaminar fracture toughness is the most useful test method to evaluate the interlaminar fracture behavior of UDCF laminaate. In this work, the sandwich ENF testing was PreSented as a new method to evaluate the interlaminar fracture behavior of various laminates, Such as AF/AF, GF/GF, CF/GF, CF/AF, and AF/GF. The specimen consisted of a mid layer with a de1amiIlation crack to measure its interlaminar fracture bebavior and two stiff outer layers to give adequate bending stiffness to the specimen. Tbe sandwich ENF specimen showed good sensitivity to G_<IIc>. cf or laminates of various fiberous compositions. It was also founded that the change in chemical composition of the matrix resin system was effective to improve the inter laminar fracture behavior of UDCF / GFCSM hybrid laminat. As G_<IIc> increased, the crack growth path shifted from UDCF intralayer to the inter lamimar zone between UDCF and GFCSM layers.
社団法人日本材料学会の論文
1991-03-15