基于织物真实形态选取了整体中空夹层复合材料的最小结构单元,确定了几何参数和纤维体积含量的计算方法,建立了力学模型,并在此基础上预测了整体中空夹层复合材料的弹性常数.分析了当绒经和地经纱的织造密度保持一定的比例不变时,不同织造参数下面板弹性性能的变化.制作了侧拉、平压试件并进行了性能测试,通过实验值和理论预测值的对比,表明了力学模型的正确性.
A methodology based on fabric microstructure was built to calculate the micro geometric parameters and predict the fiber volume fraction. A mechanical model was also established to predict engineering elastic constants. The influence of various woven parameters on the elastic properties was examined and analysed. The edgewise tensile and flatwise compression experimental samples were fabricated and experiments were performed to validate the modeling method, good agreement between the theoretical predictions and the experimental results demonstrates that the proposed model is correct.
参考文献
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