CAJ | 학술논문

对比研究利用相同碳纤维、基体和相同制备工艺（RTM）加工的三维多向编织和层合板复合材料的力学性能。四种三维多向编织结构分别利用三维四向、三维五向、三维六向和三维七向编织工艺制备；三种层合复合材料利用帘子布制成，分别为0°单向板、90°单向板和层合板[0／（±45）2／90]2s。采用相同的拉伸、压缩和剪切试验方法对各类试样进行试验。结果表明：与三维编织试样相比，0°单向板的拉伸和压缩性能最高，而其他层合试样的各项性能均较低；对于编织试样，编织角越小，纵向拉伸和压缩性能越高，剪切性能越低；编织结构也是影响编织试样力学性能的重要因素。同时，对试样的破坏模式也进行了讨论，发现编织结构和编织角是影响材料破坏模式的重要因素。
대비연구이용상동탄섬유、기체화상동제비공예（RTM）가공적삼유다향편직화층합판복합재료적역학성능。사충삼유다향편직결구분별이용삼유사향、삼유오향、삼유륙향화삼유칠향편직공예제비；삼충층합복합재료이용렴자포제성，분별위0°단향판、90°단향판화층합판[0／（±45）2／90]2s。채용상동적랍신、압축화전절시험방법대각류시양진행시험。결과표명：여삼유편직시양상비，0°단향판적랍신화압축성능최고，이기타층합시양적각항성능균교저；대우편직시양，편직각월소，종향랍신화압축성능월고，전절성능월저；편직결구야시영향편직시양역학성능적중요인소。동시，대시양적파배모식야진행료토론，발현편직결구화편직각시영향재료파배모식적중요인소。
The mechanical properties between three-dimensional (3D)braided and laminated composites were comparatively studied. These two sorts of composites were produced by the same carbon fiber,resin matrix and the same preparation process (RTM).There were totally four kinds of 3D multi-directionally braided composites,which contain 3D four-direction (3D4d ),3D five-direction (3D5d),3D six-direction (3D6d)and 3D seven-direction (3D7d)braiding respectively.And the three kinds of laminated composites manufactured utilizing tire cord fabric were 0°,90°and[0 /(45)2 /90]2s laminates.The mechanical properties of braided and laminat-ed specimens were measured by the same tension,compression and shear testing methods.The results show that the properties of lami-nated composites are worse than that of 3D-braided composite except 0°unidirectional laminates.As to the braided composites,the smaller the braiding angle is,the better longitudinal properties and worse shear properties are.The braiding fabric is also an important factor which affects the mechanical properties.Meanwhile,the failure modes were also discussed,and the results show that,braiding fabric and the braiding angle are the main factors that affect the failure mode.