基于Abaqus/Python的梳理纤维网三维建模3D modeling of carded fiber web based on Abaqus/Python
陈小明,李晨阳,谢军波,张一帆,李皎,陈利
摘要(Abstract)：
为进行三维针刺成型数值模拟及其复合材料性能有限元分析,提出基于Abaqus/Python的梳理纤维网三维建模方法,即纤维分层生长和纤维一次整体物理沉积方法。在初始平面内基于准直线纤维、大弯曲纤维杆单元链模型,自由生长生成纤维;通过移动、旋转将纤维定位至空间非重叠平面上;纤维有限元网格实现自动划分,同时对纤维的材料属性进行自动赋予;所有纤维在重力作用下,实现一次性沉积成型,构建梳理纤维网三维模型。研究结果表明:基于Abaqus/Python的梳理纤维网三维建模方法能够满足单一纤维和多种混杂纤维网三维建模的要求;通过控制压板压力可以有效控制纤维网的厚度和体积分数,纤维整体一次性沉积后的纤维网厚度为0.35 mm,体积分数为2.37%;纤维取向主要分布在75°～105°区间,整体趋势表现为正态分布,与实际梳理纤维网统计结果一致,说明建模结果准确可行。
关键词(KeyWords)： 梳理纤维网;三维建模;有限元分析;Abaqus;Python
基金项目(Foundation): 国家自然科学基金资助项目（11802203,11802204）;; 天津市自然科学基金资助项目（18JCYBJC89000）;; 天津市科委科研计划资助项目（19JCTPJC45800）;; 天津市教委科研计划资助项目（2018ZD13）;; 天津市高等教育创新团队资助项目（TD13-5043）
作者(Author): 陈小明,李晨阳,谢军波,张一帆,李皎,陈利
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