摘要
为探究施载方式对单向复合材料抗拉能力的影响,运用有限元软件ABAQUS,根据拉力方向与纱线轴向平行或垂直这2种施载方式,分别建立单向复合材料的细观结构有限元模型,计算其在一恒速力作用下纵向与横向挠度随时间的变化历程、载荷分布以及渐进变形过程。通过分析计算结果发现,施力方向对单向复合材料力学行为的影响显著。在拉力方向与纱线轴向平行的情况下,材料的抗拉性能较好。在设计抗拉性复合材料时,应尽量使材料受力方向与纤维或纱线增强相的轴向保持一致,以获得最优的抗拉性能。
In order to investigate the effect of loading modes on the tension-resistance performance of the uni-directional composite,the micro-structure finite element models of the uni-directional composites were established by using the finite element software ABAQUS according to the two loading modes,i.e.,the tensile direction is parallel/perpendicular to the axial direction of the yarn.And the vertical and horizontal deflection-time curves,load distribution and progressive deflection evolution under a constant loading condition were calculated.By analyzing the calculation results,it was found that the loading direction had a distinct effect on the mechanical behavior of the uni-directional composite.The composite showed the better tension-resistance performance when the tensile direction was parallel to the axial direction of the yarn.In addition,in order to obtain the best mechanical performance when designing the tension-resistance composites,it was recommended to make the loading direction parallel to the axial direction of the fibers or yarn reinforcements.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2014年第10期55-59,共5页
Journal of Textile Research
基金
国家自然科学基金青年科学基金项目(11305138)
关键词
单向复合材料
抗拉性能
施力方式
有限元分析
uni-directional composite
tension-resistance performance
loading mode
finite element analysis
