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To effectively get the thermal expansion coefficient (CTE) of three-dimensional (3D) braided C/C composites and study the variations, a VC++ program with graphical user interfaces was obtained, based on the yarn unit model and numerical analysis. With the limited basic properties of carbon fibers and carbon matrix, CTE of 3D braided C/C composites is obtained at 85 °C. The deviation between the simulated...
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