典型三维点阵夹芯结构抗压性能及其在汽车上的应用分析

Compressive Performance of Typical Three-Dimensional Lattice Sandwich Structure and its Application in Automobile

点阵材料因具有轻质高强的优势,在汽车轻量化、汽车被动安全、热交换等方面有着良好的应用前景。文章采用数值模拟法建立了FCC、FCC,Z、F2CC、F2CC,Z、BCC、BCC,Z、F2BCC、F2BCC,Z、Kagome点阵结构分析模型,并就整体承压能力进行了对比分析。结果表明,与传统实心结构相比,点阵结构具有轻质,应力分散均匀等特点,BCC,Z点阵结构在应力和受压后的变形小于其他结构,综合性能较好。

Due to its advantages of light weight and high strength,lattice materials have good application prospects in automobile lightweight,passive safety,heat exchange and so on.In this paper,the lattice structure analysis models of FCC、FCC,Z、F2CC、F2CC,Z、BCC、BCC,Z、F2BCC、F2BCC,Z、Kagome are established by numerical simulation method,and the overall bearing capacity is compared and analyzed.The results show that compared with the traditional solid structure,the lattice structure has the characteristics of light weight and uniform stress distribution.The deformation of BCC,Z lattice structure after stress and compression is less than other structures,and the comprehensive performance is better.