复合材料科学与工程Issue(3)：7-14,8.DOI:10.19936/j.cnki.2096-8000.20250328.002
拓扑优化体心立方结构平压性能研究
Flatwise compression property of topology optimized body centered cubic structures
摘要
Abstract
To enhance the flatwise compression property of BCC structures,an optimization design is performed using periodic boundary conditions coupled with the ESO method,and it is found that the equivalent compressive modulus of the topologically optimized BCC unit cells significantly surpasses that of traditional BCC cells.The flatwise compression simulation model of the 4×4 core structure composed of optimized unit cell is constructed in the ABAQUS software,followed by a comparative compressive experiment to demonstrate the feasibility of the simulation model.Comparison analysis between traditional structures and topologically optimized structures under compressive loads shows that the peak force in the optimized model is increased by 79.2%,and the effective energy absorption is enhanced by 48.5%.The specific energy absorption per unit volume and per unit mass is augmented by 47.8%.The optimization based on the BCC cell,not only significantly increases the equivalent compressive modulus of the BCC cells but also results in better energy absorption property under compressive loads.关键词
复合材料/周期边界条件/拓扑优化/平压/能量吸收Key words
composites/periodic boundary condition/topology optimization/flatwise compression/energy ab-sorption引用本文复制引用
孙思远,盛亚鹏,段玥晨,齐佳旗..拓扑优化体心立方结构平压性能研究[J].复合材料科学与工程,2025,(3):7-14,8.基金项目
国家自然科学基金(52175153,U1833116) （52175153,U1833116）
