Article(id=1241686760678281295, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241686759470329942, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.09.021, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745337600000, receivedDateStr=2025-04-23, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773970793169, onlineDateStr=2026-03-20, pubDate=1757865600000, pubDateStr=2025-09-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773970793169, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773970793169, creator=13701087609, updateTime=1773970793169, updator=13701087609, issue=Issue{id=1241686759470329942, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='9', pageStart='1', pageEnd='249', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773970792882, creator=13701087609, updateTime=1773970911747, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241687258093375901, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241686759470329942, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241687258093375902, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241686759470329942, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=213, endPage=220, ext={EN=ArticleExt(id=1241686760862830674, articleId=1241686760678281295, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Design and dynamic response analysis of sandwich tube under internal blast loading, columnId=null, journalTitle=Journal of Mechanical Strength, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Sandwich structures are widely used in aerospace, national defense and other fields due to their lightweight and energy-absorbing properties, and it is of great significance to improve their anti-explosion performance under internal explosion loads.Three structures were designed, including ring sandwich tube (R), polyurethane foam sandwich tube (F), and ring-polyurethane foam hybrid sandwich tube (RF), with the non-filled sandwich tube (A) as the control group. Through internal explosion load tests and finite element simulations, the deformation modes and energy absorption capacities of the four structures under different explosive amounts were compared and analyzed, and the influence of foam filling methods on the mechanical properties of sandwich tubes was explored.The results showed that, compared with the control group, the non-dimensional deflection of structures F, R and RF was reduced to varying degrees under TNT equivalents of 24 g, 36 g and 48 g.At a TNT equivalent of 48 g, the specific energy absorption of RF structure was 5% higher than that of R structure, exhibiting the best anti-explosion performance. In addition, when the TNT equivalent was greater than 37.39 g, the foam-filled ring structure (FR) showed the strongest deformation resistance; when it was less than this value, the foam-filled structure in the gap between the ring and the tube wall (RF) had the optimal anti-explosion performance.
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夹芯结构因轻质、吸能特性,在航空航天、国防等领域应用广泛,提升其在内爆炸载荷下的抗爆性能具有重要意义。设计了圆环夹芯管(R)、聚氨酯泡沫夹芯管(F)、圆环-聚氨酯泡沫混合夹芯管(RF)3种结构,并以无填充夹芯管(A)为对照组,通过内爆炸载荷试验与有限元模拟,对比分析了4种结构在不同炸药量下的变形模态与能量吸收能力,同时探究了泡沫填充方式对夹芯管力学性能的影响。与对照组相比,在TNT当量为24、36、48 g时,F、R、RF结构的无量纲化挠度均有不同程度的降低;TNT当量48 g时,RF结构比吸能较R结构提高5%,其抗爆性能最优。此外,当TNT当量大于37.39 g时,圆环内填充泡沫(FR结构)抗变形能力最强;小于该值时,圆环与管壁空隙填充泡沫(RF结构)抗爆性能最佳。
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栗弘烨,男,1998年生,山西长治人,在读硕士研究生;主要研究方向为冲击动力学;E-mail:lihongye0818@163.com。
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栗弘烨,男,1998年生,山西长治人,在读硕士研究生;主要研究方向为冲击动力学;E-mail:lihongye0818@163.com。
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Schematic diagram of sandwich pipe design and geometric parameters, figureFileSmall=s4M/6lPvDnnfLEIYMjUSPg==, figureFileBig=7o9wQTkfttVDuuvSOe8mVw==, tableContent=null), ArticleFig(id=1241810801774891311, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图1, caption=
夹芯管设计与几何参数示意图, figureFileSmall=s4M/6lPvDnnfLEIYMjUSPg==, figureFileBig=7o9wQTkfttVDuuvSOe8mVw==, tableContent=null), ArticleFig(id=1241810801892331831, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.2, caption=
Quasi-static compression test of the polyurethane foam, figureFileSmall=grxDLDlZOEwa19EP6h7GJA==, figureFileBig=1lu3XLe8dSS21sLwNsokTA==, tableContent=null), ArticleFig(id=1241810801976217917, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图2, caption=
聚氨酯泡沫准静态压缩试验, figureFileSmall=grxDLDlZOEwa19EP6h7GJA==, figureFileBig=1lu3XLe8dSS21sLwNsokTA==, tableContent=null), ArticleFig(id=1241810802081075523, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.3, caption=
Schematic diagram of the test setup, figureFileSmall=LBEAEHf5rrSWYbvHZY6I3w==, figureFileBig=zDdDqMhhEH5c4xZaC2v2aA==, tableContent=null), ArticleFig(id=1241810802286596429, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图3, caption=
试验装置示意图, figureFileSmall=LBEAEHf5rrSWYbvHZY6I3w==, figureFileBig=zDdDqMhhEH5c4xZaC2v2aA==, tableContent=null), ArticleFig(id=1241810802420814168, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.4, caption=
Nondimensionalized deflection results of the inner tube, figureFileSmall=9tEBXQcfS3mwMMBJzCYiTQ==, figureFileBig=S0uKjGm0hNG1JeAsD+AQbQ==, tableContent=null), ArticleFig(id=1241810802546643300, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图4, caption=
内管无量纲化挠度结果, figureFileSmall=9tEBXQcfS3mwMMBJzCYiTQ==, figureFileBig=S0uKjGm0hNG1JeAsD+AQbQ==, tableContent=null), ArticleFig(id=1241810802651500906, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.5, caption=
Test results of four structures under 80 g explosive charge, figureFileSmall=O116GIdY8fl6G1dUimCroQ==, figureFileBig=UyTtB8lK6nBYNHyXdAfxbQ==, tableContent=null), ArticleFig(id=1241810802785718642, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图5, caption=
80 g炸药量下4种结构试验结果, figureFileSmall=O116GIdY8fl6G1dUimCroQ==, figureFileBig=UyTtB8lK6nBYNHyXdAfxbQ==, tableContent=null), ArticleFig(id=1241810802928324985, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.6, caption=
Finite element model and mesh sensitivity verification, figureFileSmall=GguuSknMt8V60HCrk0F7yw==, figureFileBig=YO6frm08Beq07diSjfZRmA==, tableContent=null), ArticleFig(id=1241810803049959810, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图6, caption=
有限元模型与网格敏感性验证, figureFileSmall=GguuSknMt8V60HCrk0F7yw==, figureFileBig=YO6frm08Beq07diSjfZRmA==, tableContent=null), ArticleFig(id=1241810803129651594, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.7, caption=
Finite element simulation results, figureFileSmall=8IGp7dUT4QHa0AHJB1bEFw==, figureFileBig=/inQQ18bNe+gFz6c0bp/MA==, tableContent=null), ArticleFig(id=1241810803226120594, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图7, caption=
有限元模拟结果, figureFileSmall=8IGp7dUT4QHa0AHJB1bEFw==, figureFileBig=/inQQ18bNe+gFz6c0bp/MA==, tableContent=null), ArticleFig(id=1241810803322589595, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.8, caption=
Specific energy absorption of the sandwich circular tube and energy absorption ratio of the core layer, figureFileSmall=sGtFZZO8NGHKbGPtavndWw==, figureFileBig=zmhWb93hzeUJ2Pm/AO38wA==, tableContent=null), ArticleFig(id=1241810803406475685, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图8, caption=
夹芯圆管比吸能及结构芯层能量吸收占比, figureFileSmall=sGtFZZO8NGHKbGPtavndWw==, figureFileBig=zmhWb93hzeUJ2Pm/AO38wA==, tableContent=null), ArticleFig(id=1241810803507138990, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.9, caption=
Finite element models of the RF structure and the FR structure, figureFileSmall=oiZz8k0T4QwWAf7/6lrVmA==, figureFileBig=4EBG5IPlujDqVNsnY5r0jw==, tableContent=null), ArticleFig(id=1241810803628773818, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图9, caption=
RF结构和FR结构的有限元模型, figureFileSmall=oiZz8k0T4QwWAf7/6lrVmA==, figureFileBig=4EBG5IPlujDqVNsnY5r0jw==, tableContent=null), ArticleFig(id=1241810803725242818, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Fig.10, caption=
Comparison of finite element simulation results, figureFileSmall=xfYZXxPYyjSdLvqKE6dvgQ==, figureFileBig=+ihRgJ6ibrgGKrD6F89Txg==, tableContent=null), ArticleFig(id=1241810803804934602, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=图10, caption=
有限元模拟结果对比, figureFileSmall=xfYZXxPYyjSdLvqKE6dvgQ==, figureFileBig=+ihRgJ6ibrgGKrD6F89Txg==, tableContent=null), ArticleFig(id=1241810803943346642, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Tab.1, caption=
Geometric parameters of test specimens
, figureFileSmall=null, figureFileBig=null, tableContent=
| L/mm | RI/mm | RE/mm | hI、hE/mm | DC/mm |
|---|
| 100 | 49 | 87 | 2 | 12 |
), ArticleFig(id=1241810804077564379, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=表1, caption=
试件几何参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| L/mm | RI/mm | RE/mm | hI、hE/mm | DC/mm |
|---|
| 100 | 49 | 87 | 2 | 12 |
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Material properties of test specimens
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| 材料Material | 密度 Density/(kg/m3) | 弹性模量 Elastic modulus/MPa | 泊松比 Poisson ratio | 硬化模量 Tangent modulus/MPa | 屈服应力 Yield stress/MPa |
|---|
| 304不锈钢304 stainless steel | 7 930 | 193 000 | 0.3 | 787.5 | 205 |
聚氨酯泡沫 PU foam | 30 | 1.38 | 0.05 | 0.12 | 0.076 |
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试件材料属性
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| 材料Material | 密度 Density/(kg/m3) | 弹性模量 Elastic modulus/MPa | 泊松比 Poisson ratio | 硬化模量 Tangent modulus/MPa | 屈服应力 Yield stress/MPa |
|---|
| 304不锈钢304 stainless steel | 7 930 | 193 000 | 0.3 | 787.5 | 205 |
聚氨酯泡沫 PU foam | 30 | 1.38 | 0.05 | 0.12 | 0.076 |
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Test measurement of the maximum deflection of the inner tube and core compression ratio
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试件 Specimens | 内管挠度 Inner tube deflection /mm | 芯层压缩比 Core compression ratio /% |
|---|
| A-40 | 4.56 | 0 |
| A-60 | 8.92 | 0 |
| A-80 | 19.43 | 0 |
| F-40 | 4.27 | 11.86 |
| F-60 | 7.39 | 20.53 |
| F-80 | 16.11 | 44.75 |
| R-40 | 2.96 | 8.21 |
| R-60 | 5.06 | 14.05 |
| R-80 | 10.85 | 30.14 |
| RF-40 | 2.10 | 5.82 |
| RF-60 | 3.98 | 11.06 |
| RF-80 | 10.50 | 29.17 |
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试验测定内管最大挠度与芯层压缩比
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试件 Specimens | 内管挠度 Inner tube deflection /mm | 芯层压缩比 Core compression ratio /% |
|---|
| A-40 | 4.56 | 0 |
| A-60 | 8.92 | 0 |
| A-80 | 19.43 | 0 |
| F-40 | 4.27 | 11.86 |
| F-60 | 7.39 | 20.53 |
| F-80 | 16.11 | 44.75 |
| R-40 | 2.96 | 8.21 |
| R-60 | 5.06 | 14.05 |
| R-80 | 10.85 | 30.14 |
| RF-40 | 2.10 | 5.82 |
| RF-60 | 3.98 | 11.06 |
| RF-80 | 10.50 | 29.17 |
), ArticleFig(id=1241810804740264460, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=EN, label=Tab.4, caption=
Relation between explosive mass and overpressure
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乳化炸药质量 Mass of emulsion explosives/g | 40 | 60 | 80 |
|---|
| TNT当量TNT equivalent/g | 24 | 36 | 48 |
| 爆炸距离Explosion distance/mm | 48 | 48 | 48 |
| 入射超压Incident overpressure/MPa | 19.1 | 21.9 | 24.1 |
| 反射超压Reflected overpressure/MPa | 203.8 | 242.3 | 272.3 |
), ArticleFig(id=1241810804878676502, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686760678281295, language=CN, label=表4, caption=
炸药质量与超压关系
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乳化炸药质量 Mass of emulsion explosives/g | 40 | 60 | 80 |
|---|
| TNT当量TNT equivalent/g | 24 | 36 | 48 |
| 爆炸距离Explosion distance/mm | 48 | 48 | 48 |
| 入射超压Incident overpressure/MPa | 19.1 | 21.9 | 24.1 |
| 反射超压Reflected overpressure/MPa | 203.8 | 242.3 | 272.3 |
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