高压物理学报2025，Vol.39Issue(4)：28-43,16.DOI:10.11858/gywlxb.20240868
弹丸高速侵彻下AZ31B镁合金响应的数值模拟研究
Numerical Study on Response of AZ31B Magnesium Alloy Subjected to High-Velocity Projectile Perforation
摘要
Abstract
Magnesium alloys have been widely utilized in the automotive,aerospace,and electronics industries.In this paper,a dynamic constitutive model for metal was developed and integrated into a VUMAT user subroutine to precisely predict the behavior of AZ31B magnesium alloy subject to high-velocity impact.Quasi-static smooth round bar tensile test and irregular shear test were conducted using a universal testing machine.Finite element models were developed in ABAQUS/EXPLICIT to numerically simulate these tests and to calibrate the relevant parameters of the strength model and failure criteria for AZ31B magnesium alloy.To validate the accuracy and applicability of the present model,the numerical results for 0.5-cal FSP bullet and 20 mm FSP bullet impacting AZ31B magnesium alloy plates were compared with test observations.It is found:the ballistic limit and perforation failure pattern of the plate can be accurately predicted by the present model;the failure mechanism of AZ31B magnesium alloy plates is influenced by projectile nose shape,with the highest ballistic limit corresponding to flat-nosed projectile and the lowest corresponding to conical-nosed projectile;the failure patterns are dependent on plate thickness,i.e.,shear failure occurs in thicker plate,while bending deformation and petal-like tearing failures are domi-nated in thinner plate.关键词
AZ31B镁合金/动态本构模型/弹丸侵彻/破坏模式Key words
AZ31B magnesium alloy/dynamic constitutive model/projectile perforation/failure pattern分类
力学引用本文复制引用
周涛,刘益军,王子豪,杨开华..弹丸高速侵彻下AZ31B镁合金响应的数值模拟研究[J].高压物理学报,2025,39(4):28-43,16.基金项目
贵州大学引进人才科研项目(贵大人基合字[2022]34号) （贵大人基合字[2022]34号）
贵州大学基础研究项目(贵大基础[2023]42号) （贵大基础[2023]42号）
贵州大学省级本科教学内容和课程体系改革项目(2023008) （2023008）
贵州省基础研究(自然科学)项目(黔科合基础-zk[2025]面上684) （自然科学）
