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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Numerical and experimental investigation for enhancing the energy absorption capacity of the novel three-dimensional printed sandwich structures
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Numerical and experimental investigation for enhancing the energy absorption capacity of the novel three-dimensional printed sandwich structures

机译：提高新型三维印刷夹层结构能量吸收能力的数值和实验研究

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摘要

The current study focuses on designing the optimal three-dimensional printed sandwich structures. The main goal is to improve the energy absorption capacity of the out-of-plane honeycomb sandwich beam. The novel Beta VI and Alpha VI were designed in order to achieve this aim. In the Beta VI, the connecting curves (splines) were used instead of the four diagonal walls, while the two vertical walls remained unchanged. The Alpha VI is a step forward on the Beta VI, which was promoted by filleting all angles among the vertical walls, created arcs, and face sheets. The two offered sandwich structures have not hitherto been provided in the literature. All models were designed and simulated by the CATIA and ABAQUS, respectively. The three-dimensional printer fabricated the samples by fused deposition modeling technique. The material properties were determined under tensile, compression, and three-point bending tests. The results are carried out by two methods based on experimental tests and finite element analyses that confirmed each other. The achievements provide novel insights into the determination of the adequate number of unit cells and demonstrate the energy absorption capacity of the Beta VI and Alpha VI are 23.7% and 53.9%, respectively, higher than the out-of-plane honeycomb sandwich structures.
机译：目前的研究侧重于设计最佳的三维印刷夹层结构。主要目标是提高平面外蜂窝夹层光束的能量吸收能力。设计了新的Beta VI和Alpha VI，以实现这一目标。在Beta VI中，使用连接曲线（样条线）代替四个对角线壁，而两个垂直壁保持不变。 αvi是在βvi上向前一步，通过在垂直墙壁中的所有角度，产生弧形和面板中的所有角度来促进。这两种提供的夹层结构没有在文献中提供。所有型号分别由CATIA和ABAQUS设计和模拟。三维打印机通过融合沉积建模技术制造了样品。在拉伸，压缩和三点弯曲试验下测定材料性质。结果通过基于实验测试和互相证实的有限元分析进行的两种方法进行。该成果提供了对机适数量的单位细胞数量的新颖见解，并证明了βVI和αVI的能量吸收能力分别比平面外蜂窝夹层结构高出23.7％和53.9％。

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