高压物理学报2025，Vol.39Issue(9)：101-110,10.DOI:10.11858/gywlxb.20251044
FCCZ点阵结构优化与力学性能分析
Optimization and Mechanical Performance Analysis of FCCZ Lattice Structure
摘要
Abstract
This study addresses the urgent demand for high-performance materials in aerospace and other fields,exploring the dynamic compression behavior and energy absorption characteristics of a new high entropy alloy(HEA)Al0.3NbTi3VZr1.5 combined with optimized lattice structures.To solve the problem of insufficient performance of traditional face centered cubic unit cell with Z-struts(FCCZ)lattice structures under complex load conditions,a geometric optimization design was conducted based on finite element analysis.The mechanical response of the structure was then systematically investigated.The results indicate that the optimized BC and BV lattice structures significantly enhance stress distribution,specific strength,and energy absorption characteristics of the material.In the optimized configuration,the BC2 type exhibits a 9%increase in specific energy absorption,demonstrating the best overall performance.Meanwhile,the BV1 type shows a 31%improvement in specific strength compared to the original structure.Additionally,the optimization design demonstrates significant sensitivity to two key parameters:aperture and variable cross-section fillet.These findings provide a theoretical basis and design reference for efficiently combining HEA with lattice structures,offering important guidance for the design and optimization of lightweight structures in aerospace,automotive manufacturing,and other fields.关键词
点阵结构/轻量化设计/吸能特性/高熵合金/动态响应Key words
lattice structures/lightweight design/energy absorption characteristics/high entropy alloy/dynamic response分类
数理科学引用本文复制引用
刘弘炜,邱吉,王宇,李志强..FCCZ点阵结构优化与力学性能分析[J].高压物理学报,2025,39(9):101-110,10.基金项目
国家自然科学基金(12272255,12302477) （12272255,12302477）
