Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
817576 | Composites Part B: Engineering | 2015 | 6 Pages |
Abstract
C/SiC composite sandwich structure with stitched lattice core was fabricated by a technique that involved polymer impregnation and interweaving. The mechanical behaviors of C/SiC composite sandwich structure were investigated at room temperature. The out-of-plane compressive strength was 20.97Â MPa while modulus was 1473.55Â MPa. The microstructural evolution on compression fracture surfaces of the stitching yarns was investigated by scanning electron microscopy, and the damage pattern of fibers on compression fracture surface was presented and discussed. Under an in-plane compression loading, the C/SiC composite sandwich structure displayed a linear-elastic behavior until failure. The peak strength and average modulus are 165.61Â MPa and 19.74Â GPa, respectively. The failure of the specimen was dominated by the fracture of the facesheet.
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Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Ze-zhi Song, Su Cheng, Tao Zeng, Fan Yang, Shao-dong Jing, Dai-ning Fang,