A two-scale computational continua multiscale analysis model for honeycomb sandwich plates

A two-scale computational continua multiscale analysis model for honeycomb sandwich plates
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蜂窝夹层板的两尺度计算连续多尺度分析模型

DOI:
10.1080/15376494.2021.2017526
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发表时间:
2022-02
影响因子:
2.8
通讯作者:
A. S. Wan
A. S. Wan
中科院分区:
材料科学3区
文献类型:
--
作者:
D. H. Li;P. X. Wu;A. S. Wan

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摘要提出了一种用于蜂窝夹层板多尺度分析的双尺度计算连续体(c_2)模型。在该模型中,宏观问题采用三阶剪切变形理论(TSDT)进行模拟,而微观问题则采用具有面片和蜂窝芯的单个计算单元(CUC),并采用三维实体单元进行离散化,因此该模型称为二尺度c2 -TSDT模型。在数值算例中,将本文提出的c2模型与直接数值模拟(DNS)模型和均质化模型的结果进行了比较,得到了较好的一致性。
Abstract A two-scale computational continua (C 2) model is proposed for the multiscale analysis of honeycomb sandwich plates. In this model, the macroscopic problem is simulated by the third-order shear deformation theory (TSDT), while a single computational unit cell (CUC) with facesheets and honeycomb core is regarded as the microscopic problem and it is discretized by the 3D solid elements, so the proposed model is called as two-scale C 2-TSDT. In the numerical examples, the results of proposed C 2 model are compared with these of the direct numerical simulation (DNS) model and the homogenization model, and a good agreement is achieved.
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