It is made of a number of simple laminates with different main directions of materials and bonded by matrix materials. laminate can be composed of flat plates of different materials, or many simple fiber reinforced laminates. The advantage of laminate is that the main direction of materials of each layer can be designed as required, and the direction, mileage and thickness of the layer can be designed to meet the strength and stiffness of materials related to the direction, so as to meet the load requirements of structural elements.
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