Mechanical Property of Matrix Hybrid Laminates
Takafumi ONITA, Tsuyoshi NISHIWAKI, Zen-ichiro MAEKAWA and Hiroyuki HAMADA
Abstract:Matrix hybrid laminates are defined to be materials fabricated by the combination of two or more kinds of matrices. The wide ranges of stiffness and damping property may be produced by changing various designing parameters, the resin ratio and/or the stacking sequence. In this study, two kinds of resins are used as matrices. One is a vinyl ester resin with high stiffness and the other is unsaturated polyester resin with low stiffness. As a reinforcement, plain woven glass cloth is used. Matrix hybrid laminates with various flexible resin ratios and stacking sequences are fabricated. The static and dynamic bending properties are investigated by the three-point bending and the vibration tests, respectively. In addition, antisymmetric matrix hybrid laminates are also investigated by the above tests. For the above all experimental results, the influences of designing parameters on both static and dynamic bending properties are discussed in detail. It is confirmed that matrix hybrid laminates can have the wide ranges of stiffness and damping properties by changing the flexible resin ratio and the stacking sequence. Key Words:Matrix hybrid laminates, Flexible resin ratio, Stacking sequence, Bending property, Damping property