In this paper, a new manufacturing method of pyramidal lattice cells has been suggested to produce lattice composite cylinders. Moreover, the effect of fiber volume fraction, vacuum molding, and fiber pre-tension has been investigated on the load-carrying capacity of the cylindrical pyramidal lattice structure of a carbon fiber composite. The carbon fiber composite cylindrical pyramidal lattice structure has been manufactured with laying fibers along the grooves of a silicone mold. Then, it has been subjected to the axial compressive test. Furthermore, to make pre-tension in fibers, a metal mold has been designed. Fiber pre-tension ensures the alignment of the fibers is straight between two nodal points. Additionally, the structure has been analyzed by the finite element buckling procedure. Experimental tests on the structures show that using a metal mold compare to the silicone molding method increases load-carrying capacity up to 48% without significantly varying the weight. Therefore, this method can be used for manufacturing pyramidal lattice structures in the hand layup process.

中文翻译：

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用新的生产方法制造的复合圆柱金字塔点阵结构的压缩行为

在本文中，提出了一种新的金字塔晶格单元的制造方法来生产晶格复合圆柱体。此外，研究了纤维体积分数、真空成型和纤维预张力对碳纤维复合材料圆柱锥晶格结构承载能力的影响。碳纤维复合材料圆柱形金字塔晶格结构是通过沿着硅胶模具的凹槽铺设纤维制成的。然后，对其进行了轴向压缩试验。此外，为了对纤维进行预拉伸，还设计了金属模具。光纤预张力确保光纤在两个节点之间对齐。此外，该结构已通过有限元屈曲程序进行分析。对结构的实验测试表明，与硅胶成型方法相比，使用金属模具将承载能力提高了 48%，而不会显着改变重量。因此，该方法可用于制造手糊工艺中的金字塔点阵结构。