Preparation and Mechanical Properties of New 3D Fabric Sandwich Composites

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Preparation and Mechanical Properties of New 3D Fabric Sandwich Composites
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Abstract:

Glass fibers were used as raw material, and the special 3D weaving process was used to weave the new

3D sandwich fabric whose warp cross section was a rectangle. The resin matrix was consisted of epoxy resin E-51 and cu鄄

ring agent 9055. The 3D sandwich fabric was made into 3D fabric sandwich composite through the hand lay鄄up process. The

mechanical properties of 3D fabric sandwich composites with core height of 10 mm, 20 mm and 30 mm were studied. And

the effect of core height on the compression properties and flexure properties of the composites were mainly analyzed. The

results show that the compressive strength and compressive elasticity modulus of the composites decrease with the increase

of core height. The flexural strength of the composites increase with the increase of core height, while the flexural elasticity

modulus decrease. And the flexural strength in weft direction is better than that in warp one.

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Online: November 28,2016
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