On the characterisation of elastic properties of long fibre composites using computational homogenisation
On the characterisation of elastic properties of long fibre composites using computational homogenisation
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DOI：
10.1016/j.commatsci.2013.11.002
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发表时间：
2014
影响因子：
3.3
通讯作者：
D. Somer;D. Peric;E. A. S. Neto;W. Dettmer
中科院分区：
文献类型：
--
作者：
D. Somer;D. Peric;E. A. S. Neto;W. Dettmer
本文讨论了预测的弹性性能的长纤维增强复合材料的有限元为基础的计算均匀化的一个代表性的体积元（RVE）的范围内适度大的应变。通过匹配基于均匀化的模型和假设的横观各向同性超弹性模型的参考切向弹性张量来估计宏观弹性性质。该方法的有效性示出了通过一个数值例子，其中的解决方案与假设的超弹性模型和预测的参数得到的边界值问题进行比较，得到一个完全耦合的多尺度模拟。
This paper addresses the prediction of the elastic properties of long fibre-reinforced composites from the finite element-based computational homogenisation of a Representative Volume Element (RVE) in the range of moderately large strains. The macroscopic elastic properties are estimated by matching the reference tangential elasticity tensors of the homogenisation-based model and an assumed transversely isotropic hyperelasticity model. The effectiveness of the approach is illustrated by means of a numerical example where the solution of a boundary value problem obtained with the assumed hyperelastic model and the predicted parameters is compared with that obtained with a fully coupled multi-scale simulation.