A study is conducted with the aim of developing voxel-based finite element method related to the whole fiber distribution for predicting the macro-mechanical properties of 3D orthogonal woven composites. For the rationality of this model, multi-scale finite element method, which is on the basis of the surface and interior representative volume cells, and digital image correlation tests are carried out. The results show that the proposed voxel-based finite element method is capable of precisely calculating the macro-level properties of 3D orthogonal woven composites, validated by the comparison the mechanical behaviors as well as the full-field strain fields.

中文翻译：

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基于体素的有限元模型对3D正交编织复合材料宏观力学行为的数值分析

进行研究的目的是开发与整个纤维分布有关的基于体素的有限元方法，以预测3D正交编织复合材料的宏观力学性能。为了该模型的合理性，进行了基于表面和内部代表性体元的多尺度有限元方法，并进行了数字图像相关性测试。结果表明，所提出的基于体素的有限元方法能够精确地计算3D正交编织复合材料的宏观性能，并通过比较力学行为和全场应变场进行了验证。