Effect of rib structures on ballistic resistance in aluminum plates under rock projectile impact: A hybrid FEM-DEM framework with equivalent thickness analysis

•A hybrid FEM-DEM model simulates brittle projectile impact accurately.•Stress wave reflection near ribs reduces local ballistic resistance.•An equivalent thickness theory quantifies the rib-weakening effect.•Rib proximity decreases the ballistic limit by up to 4 %.•Findings guide optimal design of...

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Bibliographic Details

Published in:	Thin-walled structures Vol. 219; p. 114286
Main Authors:	Xie, Wenkui, Lu, Haoran, Sun, Hailiang, Wu, Hanling, Sun, Yuxin
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01.02.2026
Subjects:	Ballistic resistance Brittle impact Equivalent thickness FEM-DEM Rib structures FEM-DEM Equivalent thickness Ballistic resistance Rib structures Brittle impact
ISSN:	0263-8231
Online Access:	Get full text
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