为了描述复合材料用机织物在大变形下由于经纱和纬纱之间角度变化所引起的非线性各向异性材料行为,前期工作中建立了一个非正交本构模型.利用半球形冲头对复合材料用平纹机织物进行冲压模拟,并将非正交本构模型和正交本构模型的模拟结果与实验结果进行对比,对非正交本构模型进行验证,以充分说明该模型的有效性和正确性.结果表明:采用非正交本构模型模拟的复合材料用平纹机织物变形后的边界轮廓与实验结果基本一致,并且剪切角都在实验结果的误差范围内;而采用正交本构模型,复合材料用机织物变形后的边界轮廓和剪切角与实验结果相差较大.研究表明,与正交本构模型相比非正交本构模型能更好地描述复合材料用机织物在大变形下的材料属性.
参考文献
| [1] | Laroche D,Vu-Khanh T.Forming of woven fabric composites[J].Journal of Composite Materials,1994,28(18):1825-1839. |
| [2] | Cherouat A0 Billo(e)t J L.Finite element model for the simulation of preimpregnated woven fabric by deep-drawing and lay-up process[J].Journal of Advanced Materials,2000,32(4):42-53. |
| [3] | Cao J,Xue P,Peng X Q,Krishnan N.An approach in modeling the temperature effect in thermo-stamping of woven composites[J].Composite Structures,2003,61(4):413-420. |
| [4] | Zouari B,Daniel J L,Boisse P.A woven reinforcement forming simulation method:Influence of the shear stiffness[J].Computers and Structures,2006,84(516):351-363. |
| [5] | Hamila N,Boisse P.Simulations of textile composite reinforcement draping using a new semi-discrete three node finite element[J].Composites Part B,2008,39(6):999-1010. |
| [6] | Abadi M T.Finite element analysis for thermoforming process of continuous fiber reinforced thermoplastic composites[J].Polymer Composites,2009,30(2):138-146. |
| [7] | 周凯,熊杰,杨斌,毛明忠.三维正交机织复合材料的动态压缩性能[J].复合材料学报,2009,26(2):171-175.Zhou Kai,Xiong Jie,Yang Bin,Mao Mingzhong.Dynamic compressive properties of 3D orthogonal woven composites[J].Acta Materiae Compositae Sinica,2009,26(2):171-175. |
| [8] | 李典森,刘子仙,卢子兴,冯志海.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.Li Diansen,Liu Zixian,Lu Zixing,Feng Zhihai.Compressive properties and failure mechanism of three dimensional and five directional carbon fiber/phenolic braided composites[J].Acta Materiae Compositae Sinica,2008,25(1):133-139. |
| [9] | 徐馄,许希武.三维编织复合材料弹性性能数值预测及细观应力分析[J].复合材料学报,2007,24(3):178-185.Xu Kun,Xu Xiwu.Prediction of elastic constants and simulation of stress field of 3D braided composites based on the finite element method[J].Acta Materiae Compositae Sinica,2007,24(3):178-185. |
| [10] | 孙颖,李嘉禄,亢一澜.二步法三维编织复合材料弹性性能的有限元法预报[J].复合材料学报,2005,22(1):108-113.Sun Ying,Li Jialu,Kang Yilan.Finite element prediction of elastic properties of two-step three dimensional braided composites[J].Acta Materiae Compositae Sinica,2005,22(1):108-113. |
| [11] | Peng X Q,Cao J.A continuum mechanics-based nonorthogonal constitutive model for woven composite fabrics[J].Composites Part A,2005,36(8):859-874. |
| [12] | Mohammed U,Lekakou C,Bader M G.Experimental studies and analysis of the draping of woven fabrics[J].Composites Part A,2000,31(12):1409-1420. |
| [13] | Ogden R W.Non-linear elastic deformations[M].West Sussex:Ellis Horwood Limited,1984. |
| [14] | Boisse P,Gasser A,Hivet G.Analyses of fabric tensile behavior:Determination of the biaxial tension-strain surfaces and their use in forming simulations[J].Composites Part A,2001,32(10):1395-1414. |
| [15] | Peng X Q,Cao J.A dual homogenization and finite element approach for material characterization of textile composites[J].Composites Part B,2002,33(1):45-56. |
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