缝合复合材料弹性性能分析的新方法———流场模型Ⅱ: 缝合层合板弹性常数计算与实验
New method on the elastic properties of stitched composites ———Flowf ield modelⅡ: Elastic constants calculation and tests of stitched laminates
-
摘要: 为了求解缝合层合板的弹性常数, 基于用流场模型计算缝合单层弹性性能的思想, 建立流场模型计算各种铺层方向缝合单层的弹性性能。以相应的流场模型为基础, 结合细观力学方法和均匀化方法, 计算了0°和45°缝合单层的弹性常数。最后应用改进的均匀化方法, 求得了6 组缝合层合板的弹性常数, 计算结果与实验结果吻合较好。Abstract: Based on the idea of calculating elastic properties of the stitched laminar , a flow field model is set up tocalculate the elastic properties of each laminar for the elastic properties of stitched laminates. Using the flow fieldmodels , the elastic properties of the 0°and 45°stitched laminar are calculated by the micromechanics and the homogenization method. The elastic constant s of 6 set s of stitched laminates are calculated using the modified homogenization method , and the result s are in good agreement with those of the test .
下载: