Paper number 754


Ippei Susuki1, Takeshi Takatoya1, Yoshiharu Yasui2, and Toshirou Kondo2

1Structures and Materials Research Center, National Aerospace Laboratory
7-44-1 Jindaiji Higashi-machi, Chofu, Tokyo,182-8522, Japan
2Mechanical Research Group, R&D Center, Toyoda Automatic Loom Works, Ltd.
8 Chaya, Kyowa-cho, Obu-shi, Aichi-ken 474, Japan

Summary The effect of through-the-thickness fiber arrangement on the compressive strength of heat-resistant polymer matrix composites were studied for several conditions of elevated temperatures. Composite plates of a carbon fiber with bismaleimide, cyanate ester , and TGDDM type epoxy were prepared in this research. A series of in-plane compression and interlaminar shear strength tests was run to characterize the 3-D and also 2-D composites comprising pi-by-four orientation carbon fiber reinforcement with and without orthogonal z-direction carbon fibers. All dry fabric preforms of 3-D and 2-D plates were produced and prepared by the same thrusting apparatus and procedures. Specimens were fabricated by a resin transfer molding(RTM) process following to the manufacturer's instructions respectively. In this study, bismaleimide resins were observed to be more durable than TGDDM type epoxy especially for higher temperature exposures and the 3-D MR50/5250 composite showed higher strength and stable characteristics including in elevated temperature compression and interlaminar shear strengths.
Keywords 3-D, three-dimensional textile, resin transfer molding, compression test, CAI strength, heat-resistant resin, carbon/bismaleimide.

Theme : Mechanical and Physical Properties ; Physical Properties

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