将二维编织结构简化为(0°/90°)s正交铺层结构.采用含损伤变量的剪滞分析理论,解得双向等轴拉伸载荷下,0°层和90°层开裂后各层的应力分布;基于随机基体裂纹演化理论,随机纤维损伤和最终失效理论,确定了0°层和90°层沿纤维方向的应力-应变关系,以及切线拉伸模量与施加载荷之间的关系;然后,将切线拉伸模量代入正交铺层结构的剪滞分析中,进而预测出二维编织陶瓷基复合材料在双向等轴拉伸载荷下的应力-应变关系.预测结果表明:在双向等轴拉伸载荷下,二维编织陶瓷基复合材料的横向和纵向应力-应变曲线基本相同,与单向加载时的应力-应变曲线相近.
参考文献
[1] | 陶永强;矫桂琼;王波;常岩军.2D和2.5D编织陶瓷基复合材料加载速率效应和应力-应变行为模拟[J].材料科学与工程学报,2009(1):12-16. |
[2] | 刘(韦华);矫桂琼.Z-pin增强陶瓷基复合材料Ⅰ型应变能释放率[J].材料科学与工程学报,2009(3):381-384. |
[3] | 刘(韦华);矫桂琼.Z向增强平纹编织C/SiC复合材料层间剪切强度[J].材料科学与工程学报,2009(5):664-667. |
[4] | Erdman DL.;Weitsman Y..The multi-fracture response of cross-ply ceramic composites[J].International Journal of Solids and Structures,199836(36):5051-5083. |
[5] | Daniel IM.;Anastassopoulos G..FAILURE MECHANISMS AND DAMAGE EVOLUTION IN CROSSPLY CERAMIC-MATRIX COMPOSITES[J].International Journal of Solids and Structures,19953/4(3/4):341-355. |
[6] | Gregory N. Morscher;Mrityunjay Singh;J. Douglas Kiser;Marc Freedman;Ram Bhatt.Modeling stress-dependent matrix cracking and stress-strain behavior in 2D woven SiC fiber reinforced CVI SiC composites[J].Composites science and technology,20076(6):1009-1017. |
[7] | Lu TJ.;Hutchinson JW..THERMAL CONDUCTIVITY AND EXPANSION OF CROSS-PLY COMPOSITES WITH MATRIX CRACKS[J].Journal of the Mechanics and Physics of Solids,19958(8):1175-1198. |
[8] | B.K.Ahn;W.A.Curtin.Strain and hysteresis by stochastic matrix cracking in ceramic matrix composites[J].Journal of the Mechanics and Physics of Solids,19972(2):177-210. |
[9] | 罗以喜.双向载荷下双轴向经编柔性复合材料有限元模拟[J].纺织学报,2011(12):60-63. |
[10] | Jihwan Kim;Dong Joo Kim;Goangseup Zi.Improvement of the biaxial flexure test method for concrete[J].Cement & concrete composites,2013:154-160. |
[11] | Lecompte D;Smits A;Sol H;Vantomme J;Van Hemelrijck D.Mixed numerical-experimental technique for orthotropic parameter identification using blaxial tensile tests on cruciform specimens[J].International Journal of Solids and Structures,20075(5):1643-1656. |
[12] | R. Bermejo;P. Supancic;C. Krautgasser.Subcritical crack growth in Low Temperature Co-fired Ceramics under biaxial loading[J].Engineering Fracture Mechanics,2013:108-121. |
[13] | Pluvinage P.;Chou TW.;Parvizimajidi A..DAMAGE CHARACTERIZATION OF TWO-DIMENSIONAL WOVEN AND THREE-DIMENSIONAL BRAIDED SIC-SIC COMPOSITES[J].Journal of Materials Science,19961(1):232-241. |
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