Mechanical modeling of CF/PA6 sheet molding compounds with X-ray computed tomography-based internal geometry considerations
Mechanical modeling of CF/PA6 sheet molding compounds with X-ray computed tomography-based internal geometry considerations
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基于 X 射线计算机断层扫描的内部几何考虑因素对 CF/PA6 片状模塑料进行机械建模
DOI：
10.1016/j.compscitech.2020.108104
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发表时间：
2020
影响因子：
9.1
通讯作者：
Takahashi Jun
中科院分区：
文献类型：
--
作者：
Wan Yi;Takahashi Jun
近年来，片状模塑料（SMC）的应用由于力学模拟结果不佳而受到很大限制。这些差的结果发生，因为SMCs的复杂的内部几何形状使得难以建立精确的仿真模型。特别是在热塑性SMC的情况下，高粘度基质和高模塑压力要求导致极端的纤维扰动。本研究利用Mori-Tanaka（MT）模型和等效层压板（EL）模型预测的杨氏模量和拉伸强度的CF/PA 6 SMC，也被称为CTT（短切碳纤维带增强热塑性塑料），具有四个不同的带长度。使用两种X射线计算机断层扫描（CT）方法测量复杂的内部几何形状，并将量化的纤维取向信息输入相关模型。模拟结果与实验结果吻合较好。在这项研究中，通过这两个模型的杨氏模量和拉伸强度的纤维长度的影响进行了研究，并讨论了这两个模型的优点和缺点。
In recent times, the application of sheet molding compounds (SMC) has been strongly restricted due to poor mechanical simulation results. These poor results occur because the complex internal geometry of SMCs makes it difficult to establish a precise simulation model. In the case of thermoplastic SMCs in particular, a high viscosity matrix and high molding pressure requirement lead to extreme fiber disturbance. This study utilizes the Mori-Tanaka (MT) model and the Equivalent Laminate (EL) model for the prediction of Young's modulus and the tensile strength of one CF/PA6 SMC, also referred to as CTT (chopped carbon fiber tape reinforced thermoplastics), with four different tape lengths. The complex internal geometries are measured using two X-ray computed tomography (CT) methods, with the quantified fiber orientation information input into the relevant models. The obtained simulation results were found to be in agreement with the experimental results. Within this study, the effect of the fiber length on Young's modulus and the tensile strength were investigated via the two models, and the advantages and disadvantages of both models are discussed.
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影响因子：
5.3
作者：
N. Laws;R. Mclaughlin
通讯作者：
R. Mclaughlin
短切纤维增强聚合物的冲击破碎建模
DOI：
--
发表时间：
2015
期刊：
--
影响因子：
--
作者：
S. DorMohammadi;F. Abdi;R. Mandapati;H. Baid;Mike Lee;U. Gandhi
通讯作者：
U. Gandhi
影响因子：
2.9
作者：
Feraboli, Paolo;Peitso, Elof;Stickler, Patrick B.
通讯作者：
Stickler, Patrick B.
评估现有的代表性体积元素并引入新的、稳健的、有效的定义
影响因子：
3.6
作者：
H. Moussaddy;D. Therriault;M. Lévesque
通讯作者：
M. Lévesque