编织与层合复合材料拉压性能对比试验研究
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摘要
利用相同材料分别制备不同编织角的三维四向、五向、六向、七向编织复合材料试样与0°单向、90°单向和[0/(45)2/90]2 s层合复合材料试样并进行纵向拉伸与压缩试验,获得其主要力学性能参数及破坏形式,分析内部编织角、编织结构对编织材料纵向拉伸与压缩性能的影响。结果表明,内部编织角是三维编织复合材料纵向力学性能的主要影响因素,编织角越小,纵向拉伸和压缩性能越好;编织结构也是纵向力学性能影响因素;内部编织角和编织结构影响材料的破坏模式。通过试验研究得到的结论,为进一步对三维编织复合材料的理论研究奠定试验基础。
Through the longitudinal tensile and compressive experiments on 3D-4 directional, 3D-5 directional, 3D-6 directional, 3D-7 directional braided composites and laminated composites with stacking sequence of [0/(45)2/90]2s and 0° one-way slab and 90° one-way slab all made by a same material, the main mechanical property parameters and failure mechanism are achieved and the effects of braided angle and its structure to longitudinal tensile and compressive properties of braided composites are studied. Results show that the braided angle is the main factore of longitudinal mechanical properties of 3D braided composite. The smaller braided angle is, the better longitudinal tensile and compressive mechanical properties become. Braided structure also has important effect on longitudinal mechanical properties. In addition, braided angle and structure have important effect on failure mechanism. These results can provide an experimental basis for further studies on theoretical research of braided composites.
Through the longitudinal tensile and compressive experiments on 3D-4 directional, 3D-5 directional, 3D-6 directional, 3D-7 directional braided composites and laminated composites with stacking sequence of [0/(45)2/90]2s and 0° one-way slab and 90° one-way slab all made by a same material, the main mechanical property parameters and failure mechanism are achieved and the effects of braided angle and its structure to longitudinal tensile and compressive properties of braided composites are studied. Results show that the braided angle is the main factore of longitudinal mechanical properties of 3D braided composite. The smaller braided angle is, the better longitudinal tensile and compressive mechanical properties become. Braided structure also has important effect on longitudinal mechanical properties. In addition, braided angle and structure have important effect on failure mechanism. These results can provide an experimental basis for further studies on theoretical research of braided composites.
引文
[1]徐焜,许希武,汪海.三维六向编织复合材料力学性能的实验研究[J].复合材料学报,2005,22(6):144-149.
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[3]李典森,刘子仙,卢子兴,等.三维五向炭纤维/酚醛编织复合材料的压缩性能及破坏机制[J].复合材料学报,2008,25(1):133-139.
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[6]郭颖,吴林志,杨银环,等.三维六向编织复合材料拉伸性能的实验研究[J].宇航学报,2012,33(5):669-674.
[7]汪星明,邢誉峰.三维编织复合材料研究进展[J].航空学报,2010,31(5):914-927.
[8]曾涛,姜黎黎.三维编织复合材料力学性能研究进展[J].哈尔滨理工大学学报,2011,16(1):34-41.
[2]严实,孙雨果,吴林志,等.板状三维四向编织复合材料压缩细观破坏机理的实验研究[J].复合材料学报,2007,24(4):133-139.
[3]李典森,刘子仙,卢子兴,等.三维五向炭纤维/酚醛编织复合材料的压缩性能及破坏机制[J].复合材料学报,2008,25(1):133-139.
[4]陈利,梁子青,马振杰,等.三维五向编织复合材料纵向性能的实验研究[J].材料工程,2005(8):3-6.
[5]严实,吴林志,孙雨果.三维四向编织复合材料压缩力学性能实验研究[J].材料工程,2007(3):59-66.
[6]郭颖,吴林志,杨银环,等.三维六向编织复合材料拉伸性能的实验研究[J].宇航学报,2012,33(5):669-674.
[7]汪星明,邢誉峰.三维编织复合材料研究进展[J].航空学报,2010,31(5):914-927.
[8]曾涛,姜黎黎.三维编织复合材料力学性能研究进展[J].哈尔滨理工大学学报,2011,16(1):34-41.