EFFECT OF NEEDLE-PUNCHING ON THE IN-PLANE TENSILE MODULUS OF CFRP

doi:10.19936/j.cnki.2096-8000.20210628.017

Abstract

Abstract: By transferring the in-plane fibers to the out-plane, needle-punching improves delamination resistance capacity of composites and degrades in-plane properties. In this paper, we analyzed the needling process and constructed a type of RVE model to estimate the in-plane modulus of the CFRP. The simulation results of RVE models and the experiment were in well agreement. Effects of needling density, depth and distribution on the in-plane tensile modulus of CFRP were studied. The results show that under the same needled distribution, increasing needling density and depth would lead to the decrease of in-plane tensile modulus of composite materials, and the effect of needling depth is greater than needling density. A random distribution of needling will cause the dispersion of material properties, and the degree of dispersion will rise with the increase of depth and density of needling.

Key words: needled composites; RVE model; finite element method; technical parameters; in-plane tensile modulus

CLC Number:

TB332

YANG Cheng, ZHU Li-ping, LIU Yan-you, CHENG Hai-xia, GUO Ju-shang. EFFECT OF NEEDLE-PUNCHING ON THE IN-PLANE TENSILE MODULUS OF CFRP[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(6): 106-112.

References

[1] CHEN X, LI C, ZHAN C Y, et al. Three-dimensional needle-punching for composites-A review[J]. Composites: Part A, 2016, 85: 12-30.
[2] 刘建军, 李铁虎, 郝志彪, 等. 针刺炭布/网胎复合织物中的纤维转移和损伤研究[J]. 炭素技术, 2008, 27(5): 13-15.
[3] 刘建军, 李铁虎, 郝志彪, 等. 针刺炭布/网胎复合织物的组分形态及性能研究[J]. 固体火箭技术, 2005, 28(4): 299-302.
[4] 殷忠义, 邓海亮, 薛伟峰, 等. 碳纤维针刺预制体增强TDE-85树脂材料细观研究[J]. 电子工艺技术, 2019, 40(2): 100-103.
[5] 李飞, 刘建军, 程文, 等. 工艺参数对炭/炭复合材料针刺预制体力学性能的影响[J]. 炭素, 2004, 117(1): 25-28.
[6] 张晓虎, 李贺军, 郝志彪, 等. 针刺工艺参数对炭布网胎增强C/C材料力学性能的影响[J]. 无机材料学报, 2007, 22(5): 963-967.
[7] 刘延友, 程海霞, 乔志炜, 等. 叠层针刺工艺参数对碳纤维复合材料力学性能的影响[J]. 上海纺织科技, 2019, 47(11): 46-48, 67.
[8] 李龙, 高希光, 史剑. 考虑孔隙的针刺C/SiC复合材料弹性参数计算[J]. 航空动力学报, 2013, 28(6): 1257-1263.
[9] 徐少斌. 针刺炭/炭复合材料多尺度单胞模型及低速冲击损伤仿真研究[D]. 湖北: 华中科技大学, 2016: 21-36.
[10] 贾永臻. 针刺C/C复合材料细观结构表征及力学行为仿真研究[D]. 武汉: 华中科技大学, 2017: 31-34.
[11] ZHANG H J, ZHOU C W. Tensile strength prediction of needle-punched carbon/carbon composites[J]. Journal of Reinforced Plastics and Composites, 2016, 35(20): 1490-1512.
[12] MENG S H, SONG L Y, XU C H. Predicting the effective properties of 3D needled carbon/carbon composites by a hierarchical scheme with a fiber-based representative unit cell[J]. Composite Structures, 2017, 172: 198-209.
[13] HAN M, ZHOU C W, SILBERSCHMIDT V V. Mesoscale damage analysis of needle-punched carbon/carbon composite considering randomness of inherent defects[J]. Composites Science and Technology, 2019, 183(20): 107821.1-12.
[14] HAN M, ZHOU C W, ZHANG H J. Mesoscale beam-spring combined mechanical model of needle-punched carbon/carbon composite[J]. Composites Science and Technology, 2018(168): 371-380.
[15] YU J, ZHOU C W, ZHANG H J. A micro-image based reconstructed finite element model of needle-punched C/C composite[J]. Composites Science and Technology, 2017, 153(1): 48-61.
[16] XIE J B, CHEN X M, ZHANG Y F, et al. Experimental and numerical investigation of the needling process for quartz fibers[J]. Composites Science and Technology, 2018, 165: 115-123.
[17] XIE J, LIANG J, FANG G, et al. Effect of needling parameters on the effective properties of 3D needled C/C-SiC composites[J]. Composites Science and Technology, 2015, 117(29): 69-77.
[18] XIE J, FANG G, CHEN Z, et al. Numerical and experimental studies on scattered mechanical properties for 3D needled C/C-SiC composites[J]. Composite Structures, 2018, 192(MAY): 545-554.
[19] 张瑜. 针刺机理研究[J]. 纺织学报, 1996, 17(5): 49-53.
[20] 中国国家标准化管理委员会. 纤维增强塑料拉伸性能试验方法: GB/T 1447—2005[S]. 北京: 中国标准出版社, 2005.
[21] CHAMIS C C. Mechanics of composites materials: Past, present and future[J]. Journal of Composites Technology and Research, 1989, 11(1): 3-14.
[22] 贾永臻, 廖敦明, 徐少斌, 等. 针刺炭/炭复合材料多尺度单胞模型及等效弹性参数计算[J]. 炭素技术, 2017, 36(2): 10-15.