|
|
- 2016
整体缝合夹芯结构复合材料压缩性能
|
Abstract:
设计了一种新型整体缝合夹芯结构。采用真空导入模塑工艺(VIMP)制备整体缝合夹芯结构复合材料, 研究其在平压载荷作用下的力学性能和破坏模式, 建立其有限元模型, 研究缝合纱线用量对整体缝合夹芯结构复合材料平压力学性能的影响。结果表明:该新型整体缝合夹芯结构复合材料能够在提高缝合纱线数量的同时避免一般斜缝方式引起纤维交叉损坏的弊端。整体缝合夹芯结构复合材料的压缩强度和压缩模量随着缝合纱线数量的增加而增大, 但缝合纱线含量较高时, 比压缩强度有所下降。数值计算结果与试验结果对比分析, 验证了所建立有限元模型的合理性, 说明该模型可用于预测其压缩模量。 New type of integrated stitch sandwich structure was designed. The integrated stitched sandwich structure composites were prepared by vacuum infusion molding process (VIMP) to investigate the mechanical performance and failure mode under the flatwise compression load. Finite element model was established to study the effects of the stitching yarn consumption on flatwise compression mechanical properties of integrated stitched sandwich structure composites. The results indicate that the new type of integrated stitch sandwich structure composites can improve the number of yarns and avoid the disadvantages of fiber cross damage caused by the traditional angled stitched. The compression strength and compression modulus of integrated stitched sandwich structure composites increase with the increase of the number of stitching yarn. However the specific compression strength will decrease when the number of stitching yarn is high. The rationality of the established finite element model is validated by comparing with numerical calculation results and test results. It indicates that the model could be used to predict the compression modulus. 国家自然科学基金(11202231,51303208,51403235);国防科技大学校研项目(JC12-01-07)
| [1] | 王世勋. 复合材料夹芯结构的力学性能[D]. 哈尔滨: 哈尔滨工业大学, 2010. WANG S X. Mechanical properties of composites sandwich structures[D]. Harbin : Harbin Institute of Technology, 2010 (in Chinese). |
| [2] | WANG P, WANG P, LI X, et al. Experimental and numerical evaluation of fatigue behavior of foam core sandwich structure[J]. Composite Structures, 2013, 3(3): 50-51. |
| [3] | 郑锡涛, 孙秦, 李野, 等. 全厚度缝合复合材料泡沫芯夹层结构力学性能研究与损伤容限评定[J]. 复合材料学报, 2006, 23(6): 29-36. ZHENG X T, SUN Q, LI Y, et al. Mechanical behavior and damage tolerance tests of composites through-thickness stitched foam sandwich panels[J]. Acta Materiae Compositae Sinica, 2006, 23(6): 29-36 (in Chinese). |
| [4] | HENAO A, CARRERA M, MIRAVETE A, et al. Mechanical performance of through-thickness tufted sandwich structures[J]. Composite Structures, 2010, 92(9): 2052-2059. |
| [5] | WANG B, WU L, JIN X, et al. Experimental investigation of 3D sandwich structure with core reinforced by composite columns[J]. Materials & Design, 2010, 31(1): 158-165. |
| [6] | LASCOUP B, KHELLIL K, BENZEGGAGH M, et al. Stitched sandwich panel materials for resin infusion structures[J]. Sampe Journal, 2005,41(1):42-48. |
| [7] | 中国国家标准化委员会. 夹层结构或芯子平压性能试验方法: GB/T 1453—2005[S]. 北京: 中国标准出版社, 2005. Standization Administration of China. Test method for flatwise compression properties of sandwich constructions or cores: GB/T 1453—2005[S]. Beijing: Standards Press of China, 2005 (in Chinese). |
| [8] | WU Z H, XIAO J Y, ZENG J C, et al. Compression performance of integrated 3D composite sandwich structures[J]. Journal of Sandwich Structures and Materials, 2014, 16(1): 5-21. |
| [9] | CHAMIS C C. Mechanics of composites materials: Past, present and future[J]. Journal of Composites Technology and Research, 1989, 11(1): 3-14. |
| [10] | LASCOUP B, ABOURA Z, KHELLIL K, et al. Prediction of out-of-plane behavior of stitched sandwich structure[J]. Composites Part B: Engineering, 2012, 43(8): 2915-2920. |
| [11] | 杨慧. 缝合复合材料泡沫夹芯结构细观特征分析及刚度预测[D]. 上海: 上海交通大学, 2009. YANG H. Meso-characteristics analysis and stiffness prediction of stitched foam-cored sandwich structure[D]. Shanghai: Shanghai Jiao Tong University, 2009 (in Chinese). |
| [12] | 贾欲明, 韩全民, 李巧, 等. 泡沫夹层结构在飞机次承力结构中的应用[J]. 航空制造技术, 2009(增刊1): 8-12. JIA Y M, HAN Q M, LI Q, et al. Application of foam sandwich structure in aircraft secondary load-carrying structure[J]. Aeronautical Manufacturing Technology, 2009(Suppl.1): 8-12 (in Chinese). |
| [13] | 邬志华. 三维整体复合材料夹芯结构的设计、制备与性能[D]. 长沙: 国防科学技术大学, 2011. WU Z H. Design, manufacture and mechanical performance of 3D integrated composite sandwich structures[D]. Changsha: National University of Defense Technology, 2011 (in Chinese). |
| [14] | LASCOUP B, ABOURA Z, KHELLIL K, et al. On the mechanical effect of stitch addition in sandwich panel[J]. Composites Science and Technology, 2006, 66(10): 1385-1398. |
| [15] | HAMMAMI A R, GEBART B. Analysis of the vacuum infusion molding process[J]. Polymer Composites, 2000, 21(1): 28-40. |
| [16] | ZHENG X T, ZHANG J F, YANG F, et al. Experimental and analytical study on the mechanical behavior of stitched sandwich composite panel with a foam core[J]. Advanced Materials Research, 2008, 33-37: 477-482. |
