carbon fiber reinforced composites meaning in Chinese
碳纤维增强复合料
Examples
- Low - velocity impact damage analysis in carbon fiber reinforced composite laminated plates
低速冲击作用下碳纤维复合材料铺层板的损伤分析 - Secondly , two carbon fiber reinforced composite beams were fabricated , and their modal frequencies were measured by an experiment method . thirdly , delaminations were modeled by pairs of nodes with the same coordinates but different node numbers , while the modal frequencies of these beams with different delamination location and size were computed by an eas piezoelectric solid element . moreover , a novel method combining computational mechanics and neural network was demonstrated for composite health monitoring ; the first five flexure modal frequencies obtained by fem were modified by a primary revising approach and were used to train the neural network
本文较全面地评述了神经网络的应用模型、改进算法等，编制了bp神经网络程序：制备了纤维增强复合材料试件，并进行实验模态分析；利用坐标相同、节点号不同的方法模拟脱层损伤，基于eas列式的压电固体单元计算了不同脱层损伤情况下的频率信息；针对基于实验数据训练神经网络存在样本不足的缺陷，本文提出了利用有限元方法对含有脱层损伤的复合材料试件进行数值模拟，以前五阶弯曲模态频率构建训练样本的新思路，并提出了一种初步的计算值修正方法，以此构建神经网络的训练样本：将实验模态分析的结果送入训练好的神经网络进行预测，实现了对复合材料梁的脱层损伤的定位和损伤程度的评估。