Experimental investigation on the anti-detonation performance of composite structure containing foam geopolymer backfill material

IF 5 Q1 ENGINEERING, MULTIDISCIPLINARY Defence Technology(防务技术) Pub Date : 2025-01-01 DOI:10.1016/j.dt.2024.08.011
Hang Zhou , Hujun Li , Zhen Wang , Dongming Yan , Wenxin Wang , Guokai Zhang , Zirui Cheng , Song Sun , Mingyang Wang
{"title":"Experimental investigation on the anti-detonation performance of composite structure containing foam geopolymer backfill material","authors":"Hang Zhou ,&nbsp;Hujun Li ,&nbsp;Zhen Wang ,&nbsp;Dongming Yan ,&nbsp;Wenxin Wang ,&nbsp;Guokai Zhang ,&nbsp;Zirui Cheng ,&nbsp;Song Sun ,&nbsp;Mingyang Wang","doi":"10.1016/j.dt.2024.08.011","DOIUrl":null,"url":null,"abstract":"<div><div>The compression and energy absorption properties of foam geopolymers increase stress wave attenuation under explosion impacts, reducing the vibration effect on the structure. Explosion tests were conducted using several composite structure models, including a concrete lining structure (CLS) without foam geopolymer and six foam geopolymer composite structures (FGCS) with different backfill parameters, to study the dynamic response and wave dissipation mechanisms of FGCS under explosive loading. Pressure, strain, and vibration responses at different locations were synchronously tested. The damage modes and dynamic responses of different models were compared, and how wave elimination and energy absorption efficiencies were affected by foam geopolymer backfill parameters was analyzed. The results showed that the foam geopolymer absorbed and dissipated the impact energy through continuous compressive deformation under high strain rates and dynamic loading, reducing the strain in the liner structure by 52% and increasing the pressure attenuation rate by 28%. Additionally, the foam geopolymer backfill reduced structural vibration and liner deformation, with the FGCS structure showing 35% less displacement and 70% less acceleration compared to the CLS. The FGCS model with thicker, less dense foam geopolymer backfill, having more pores and higher porosity, demonstrated better compression and energy absorption under dynamic impact, increasing stress wave attenuation efficiency. By analyzing the stress wave propagation and the compression characteristics of the porous medium, it was concluded that the stress transfer ratio of FGCS-ρ-579 was 77% lower than that of CLS, and the transmitted wave energy was 90% lower. The results of this study provide a scientific basis for optimizing underground composite structure interlayer parameters.</div></div>","PeriodicalId":58209,"journal":{"name":"Defence Technology(防务技术)","volume":"43 ","pages":"Pages 304-318"},"PeriodicalIF":5.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Defence Technology(防务技术)","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S221491472400196X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The compression and energy absorption properties of foam geopolymers increase stress wave attenuation under explosion impacts, reducing the vibration effect on the structure. Explosion tests were conducted using several composite structure models, including a concrete lining structure (CLS) without foam geopolymer and six foam geopolymer composite structures (FGCS) with different backfill parameters, to study the dynamic response and wave dissipation mechanisms of FGCS under explosive loading. Pressure, strain, and vibration responses at different locations were synchronously tested. The damage modes and dynamic responses of different models were compared, and how wave elimination and energy absorption efficiencies were affected by foam geopolymer backfill parameters was analyzed. The results showed that the foam geopolymer absorbed and dissipated the impact energy through continuous compressive deformation under high strain rates and dynamic loading, reducing the strain in the liner structure by 52% and increasing the pressure attenuation rate by 28%. Additionally, the foam geopolymer backfill reduced structural vibration and liner deformation, with the FGCS structure showing 35% less displacement and 70% less acceleration compared to the CLS. The FGCS model with thicker, less dense foam geopolymer backfill, having more pores and higher porosity, demonstrated better compression and energy absorption under dynamic impact, increasing stress wave attenuation efficiency. By analyzing the stress wave propagation and the compression characteristics of the porous medium, it was concluded that the stress transfer ratio of FGCS-ρ-579 was 77% lower than that of CLS, and the transmitted wave energy was 90% lower. The results of this study provide a scientific basis for optimizing underground composite structure interlayer parameters.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
含泡沫土工聚合物回填材料的复合结构抗爆性能实验研究
泡沫土工聚合物的压缩和吸能特性增加了爆炸冲击下的应力波衰减,降低了对结构的振动影响。利用几种复合结构模型(包括不含泡沫土工聚合物的混凝土衬砌结构(CLS)和六种具有不同回填参数的泡沫土工聚合物复合结构(FGCS))进行了爆炸试验,以研究爆炸荷载下泡沫土工聚合物复合结构的动态响应和消波机制。对不同位置的压力、应变和振动响应进行了同步测试。比较了不同模型的破坏模式和动态响应,分析了泡沫土工聚合物回填参数对消波和能量吸收效率的影响。结果表明,在高应变率和动态加载条件下,泡沫土工聚合物通过连续压缩变形吸收和消散了冲击能量,使衬垫结构的应变降低了 52%,压力衰减率提高了 28%。此外,泡沫土工聚合物回填减少了结构振动和衬垫变形,与 CLS 相比,FGCS 结构的位移减少了 35%,加速度减少了 70%。FGCS 模型的泡沫土工聚合物回填材料更厚、密度更低、孔隙更多和孔隙率更高,在动态冲击下具有更好的压缩和能量吸收能力,提高了应力波衰减效率。通过分析应力波的传播和多孔介质的压缩特性,得出结论:FGCS-ρ-579 的应力传递比比 CLS 低 77%,传递的波能低 90%。该研究结果为优化地下复合结构夹层参数提供了科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Defence Technology(防务技术)
Defence Technology(防务技术) Mechanical Engineering, Control and Systems Engineering, Industrial and Manufacturing Engineering
CiteScore
8.70
自引率
0.00%
发文量
728
审稿时长
25 days
期刊介绍: Defence Technology, a peer reviewed journal, is published monthly and aims to become the best international academic exchange platform for the research related to defence technology. It publishes original research papers having direct bearing on defence, with a balanced coverage on analytical, experimental, numerical simulation and applied investigations. It covers various disciplines of science, technology and engineering.
期刊最新文献
IFC - Editorial Board Perspectives on additive manufacturing for warhead applications Innovative dispersion techniques of graphene nanoplatelets (GNPs) through mechanical stirring and ultrasonication: Impact on morphological, mechanical, and thermal properties of epoxy nanocomposites Discovering causal models for structural, construction and defense-related engineering phenomena Synergistic effect of nitrocellulose coating on structural and reactivity stabilization of ammonium nitrate oxidizer
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1