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将纤维束和微裂纹分别看作是圆柱型和圆币型夹杂,采用等效夹杂法对含微裂纹的三维多向编织复合材料进行细观力学分析,建立了含微裂纹三维多向编织复合材料预报弹性系数的方法.分析中直接考虑了微裂纹的任意取向和增强纤维束的空间取向.该方法可以应用于一般含微裂纹的三维编织复合材料,也可以应用于单向纤维增强复合材料.
The fiber bundles and microcracks were considered as cylinder-type and coin-type inclusions, respectively. Meso-mechanics analysis of three-dimensional multidirectional braided composites with microcracks was carried out by using the equivalent inclusions method. Three-dimensional multidirectional braided composites Methods for predicting elastic coefficients of materials. In the analysis, the random orientation of micro-cracks and the spatial orientation of fiber bundles are directly considered. The method can be applied to three-dimensional braided composites generally containing micro-cracks and also can be applied to unidirectional fiber-reinforced composites.