亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Effect of fillers on compression loading performance of modified re-entrant honeycomb auxetic sandwich structures

辅助 材料科学 复合材料 蜂巢 蜂窝结构 压力(语言学) 压缩(物理) 变形(气象学) 结构工程 语言学 工程类 哲学
作者
Nadimul Haque Faisal,Lindsay Scott,Findlay Booth,Scott F. M. Duncan,Abbi McLeod,Mohamad Ghazi Droubi,James Njuguna
出处
期刊:Journal of Strain Analysis for Engineering Design [SAGE Publishing]
卷期号:58 (2): 98-117 被引量:4
标识
DOI:10.1177/03093247221083210
摘要

The auxetic sandwich panels for structures have been designed to provide impact protection. The aim of this work is to modify an auxetic (re-entrant) honeycomb cell to reduce the stress concentrations within the cell structure, and further enhancement of this design. The auxetic structure was filled to achieve a greater energy absorbance and enhance safety applications. Analytical and elastic three-dimensional finite element approaches were used to investigate the structural strength performance. The basic model (i.e. modified re-entrant strut cell design) consisted of the honeycomb auxetic polypropylene (PP) structure sandwiched between two steel plates (known as safety panels) which were placed under static compression loading. The cell geometry and size were then modified to reduce the stress concentration zones. The structure cells were filled with silly putty and polyvinyl chloride (PVC) foam. The effect of the filling the cells on the stress concentration and energy absorbance were analysed using elastic stress and deformation analysis methods. During the stress path analysis, it was found that an increase in Young’s modulus of the filling was directly proportional to a decrease in internal stresses. It was concluded that while filling the basic model with soft materials reduced the stress concentration, but it led to a reduction in the energy absorbance capability. Further on, the lower stress produced by the enhanced could be useful to prevent significant penetration of the protective panel. Compared to similar structures of steel, auxetic foam panels have the advantage of having only a fraction of the weight and being corrosion resistant at the same time as keeping impact strength. Graphical abstract [Formula: see text]
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Hello应助五香采纳,获得10
9秒前
18秒前
38秒前
五香发布了新的文献求助10
45秒前
星辰大海应助五香采纳,获得10
55秒前
充电宝应助GYQ采纳,获得10
56秒前
量子星尘发布了新的文献求助10
1分钟前
1分钟前
GYQ发布了新的文献求助10
1分钟前
GYQ完成签到,获得积分10
1分钟前
淡定的雁玉完成签到 ,获得积分10
1分钟前
1分钟前
FashionBoy应助兴奋的嘉懿采纳,获得10
2分钟前
2分钟前
祖之微笑发布了新的文献求助10
2分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
2分钟前
2分钟前
量子星尘发布了新的文献求助10
2分钟前
3分钟前
3分钟前
3分钟前
3分钟前
祖之微笑发布了新的文献求助10
3分钟前
简因完成签到 ,获得积分10
3分钟前
英姑应助苹果果汁采纳,获得30
3分钟前
kaka完成签到,获得积分10
4分钟前
4分钟前
Jason发布了新的文献求助10
4分钟前
4分钟前
4分钟前
量子星尘发布了新的文献求助10
4分钟前
小乘号子发布了新的文献求助10
4分钟前
5分钟前
5分钟前
5分钟前
子平完成签到 ,获得积分0
5分钟前
科研通AI5应助哲别采纳,获得10
5分钟前
gszy1975完成签到,获得积分10
5分钟前
小乘号子发布了新的文献求助10
5分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976665
求助须知:如何正确求助?哪些是违规求助? 3520756
关于积分的说明 11204771
捐赠科研通 3257528
什么是DOI,文献DOI怎么找? 1798733
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629