Dynamic response of foam-filled negative Poisson's ratio beams under low-velocity impact

被引：0

作者：

Zhao, Modi ^{[1
,2
]}

Yuan, Long ^{[2
]}

Yuan, Hui ^{[2
]}

Zhang, Jianxun ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Aerospace Engn, State Key Lab Strength & Vibrat Mech Struct, 28 Xianning West Rd, Xian 710049, Peoples R China

来源：

JOURNAL OF SANDWICH STRUCTURES & MATERIALS | 2025年 / 27卷 / 04期

关键词：

Dynamic response; low-velocity impact; metal foam; negative poisson's ratio beam; BEHAVIOR; EMPTY;

D O I：

10.1177/10996362251317302

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The dynamic behavior of foam-filled negative Poisson's ratio beam (FNPRB) under low-speed impact is studied analytically and numerically in this work. The analytical solution for the dynamic behavior of foam-filled negative Poisson's ratio beam is derived on the basis of the yield criterion. The numerical calculations are conducted. Theoretical results are consistent with finite element results. The influences of foam strength, negative Poisson's structure width and foam thickness on the crashworthiness of foam-filled negative Poisson's ratio beams are discussed. In the discussions on effects of parameters, it is considered the effect of the total weight of the sandwich beam due to the parameter change, a dimensionless quantity to study the influence of parameters on sandwich beams is defined. It is shown that foam strength and foam thickness play significant roles in influencing the low-speed impact of the foam-filled beam with negative Poisson's ratio.

引用

页码：869 / 894

页数：26

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