Article(id=1241838625969734288, tenantId=1146029695717560320, journalId=1241755870837649424, issueId=1241838624241681037, articleNumber=null, orderNo=null, doi=10.19636/j.cnki.cjsm42-1250/o3.2024.040, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1725465600000, receivedDateStr=2024-09-05, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774007000677, onlineDateStr=2026-03-20, pubDate=1740672000000, pubDateStr=2025-02-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774007000677, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774007000677, creator=13701087609, updateTime=1774007000677, updator=13701087609, issue=Issue{id=1241838624241681037, tenantId=1146029695717560320, journalId=1241755870837649424, year='2025', volume='46', issue='1', pageStart='1', pageEnd='148', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774007000265, creator=13701087609, updateTime=1774007104623, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241839062017966445, tenantId=1146029695717560320, journalId=1241755870837649424, issueId=1241838624241681037, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241839062017966446, tenantId=1146029695717560320, journalId=1241755870837649424, issueId=1241838624241681037, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=129, endPage=148, ext={EN=ArticleExt(id=1241838627110584985, articleId=1241838625969734288, tenantId=1146029695717560320, journalId=1241755870837649424, language=EN, title=Study on Energy Absorption Characteristics of Rotating Star-Shaped Honeycomb Structure with Negative Poisson's Ratio, columnId=1241831201674171363, journalTitle=Chinese Journal of Solid Mechanics, columnName=Research Papers, runingTitle=null, highlight=null, articleAbstract=
The negative Poisson's ratio honeycomb structure is widely used in the field of impact protection because of its unique mechanical properties and excellent energy absorption capacity. The evolution of local dynamic stress in this structure is closely related to changes in its cellular microstructure under dynamic impact. Current research on negative Poisson's ratio structures mainly focuses on improving overall energy absorption capacity of the structure by designing cells with concave deformation mechanism, often ignoring the structural optimization of existing models and lacking exploration of other energy absorption mechanisms of rotary deformation. To further improve the dynamic response of star-shaped honeycomb structures with negative Poisson's ratio under in-plane impacts, the rotation characteristics of cells are studied in this paper. Building on traditional designs, the star-shaped honeycomb structure is further optimized, and the deformation energy absorption mechanism of star-shaped honeycomb cell is endowed with the coupling idea. Based on the principle of relative density equality, two types of rotating star-shaped cellular cells with double negative Poisson's ratio effect are obtained by internal rotation and external rotation: internal star-shaped cellular cells and external star-shaped cellular cells. The energy absorption characteristics of different honeycomb structures under in-plane impact loads are studied using numerical simulations, and the influences of both concave and rotating deformation mechanisms on the energy absorption characteristics of honeycomb structures are investigated. Based on one-dimensional shock wave theory and energy absorption efficiency method, empirical formulas for dynamic platform stress and dense strain of star-shaped honeycomb structures are given, and the formulas for calculating their relative density are established. According to the theory of critical velocity, the first and second critical velocities of the star-shaped honeycomb structure are determined. The dynamic response of the rotating star-shaped honeycomb structure under different impact velocities is analyzed using the explicit dynamic finite element method. Simulation results are compared and analyzed with the evaluation indexes of model macro and micro deformation modes, platform stress, and specific energy absorption. The results show that when the new structures are impacted, their cells first rotate and then recess, exhibiting a stronger negative Poisson's ratio effect. Under the impact at a medium speed of 20 m/s, the platform stress of the internal honeycomb structure is higher and the stress stability is better. In the platform stage, the stress fluctuation of the external spiral honeycomb structure is more severe, but it has higher specific absorption energy under the impact at a high speed of 120 m/s. This study shows the relationship between the concave mechanism and rotation mechanism of the star-shaped honeycomb structure and its energy absorption characteristics, providing new insights for optimizing the impact dynamic performance of honeycomb structures.
, correspAuthors=Baoqing Zhang, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Baoqing Zhang, Sen Jiang), CN=ArticleExt(id=1241838642960860053, articleId=1241838625969734288, tenantId=1146029695717560320, journalId=1241755870837649424, language=CN, title=旋转型负泊松比星形蜂窝结构能量吸收特性研究, columnId=1241831201896469478, journalTitle=固体力学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
负泊松比蜂窝结构具有独特的力学特性以及良好的能量吸收能力,现已被广泛应用于冲击防护领域. 在动力冲击作用下,负泊松比蜂窝结构局部动态应力的演化与胞元微结构的改变息息相关. 当前对负泊松比结构的研究主要集中在通过设计具有内凹变形机制的胞元以提高整体结构的吸能能力,忽略了对已有模型进行结构优化,对其它旋转变形吸能机制的研究也有欠缺. 为了进一步改善负泊松比星形蜂窝结构在承受面内冲击时的动力学响应,本文拟围绕胞元的旋转特性展开研究. 在传统星形蜂窝结构的基础上,对其结构进行进一步优化设计,利用耦合思想赋予星形蜂窝胞元自旋转的变形吸能机制. 基于相对密度相等原则通过内旋与外旋得到了两种具有双重负泊松比效应的旋转型星形蜂窝胞元:内旋型星形蜂窝胞元和外旋型星形蜂窝胞元. 利用数值模拟的方法深入对比研究了不同蜂窝结构在面内冲击载荷下的吸能特性,探究同时具备内凹和旋转两种变形机制的胞元对蜂窝结构吸能特性的影响. 基于一维冲击波理论和能量吸收效率方法,给出了星形蜂窝动态平台应力和密实应变的经验公式,建立了计算星形蜂窝结构相对密度的公式. 根据临界速度理论,确定了星形蜂窝结构的第一临界速度和第二临界速度. 采用显式动力有限元法,研究了旋转型星形蜂窝结构在不同冲击速度下的动态响应,以模型宏微观变形模式、平台应力、比吸能等为评价指标对仿真结果进行了对比分析. 结果表明,新型结构在被冲击时胞元都是先发生自身旋转变形然后发生内凹变形,宏观上具有更强的负泊松比效应. 在中速20 m/s的冲击下,内旋型蜂窝结构的平台应力更高、平台应力稳定性更好. 外旋型蜂窝结构在平台阶段的应力波动较为剧烈,但在高速120 m/s的冲击下具有较高的比吸能. 本文的研究结果表明了星形蜂窝结构的内凹机制和旋转机制与其吸能特性之间的关系,为蜂窝结构冲击动力学性能的优化提供了新思路.
, correspAuthors=张宝庆, authorNote=null, correspAuthorsNote=
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Geometric dimensions of traditional star-shaped honeycomb structure, figureFileSmall=PUtv6a9pvE9ppoBdB4jsUA==, figureFileBig=4NquE5vkgxaegixK5vYOtg==, tableContent=null), ArticleFig(id=1241838644818935808, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图1, caption=
传统星形蜂窝结构几何尺寸示意图, figureFileSmall=PUtv6a9pvE9ppoBdB4jsUA==, figureFileBig=4NquE5vkgxaegixK5vYOtg==, tableContent=null), ArticleFig(id=1241838646437937167, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.2, caption=
Two kinds of rotating cellular cells, figureFileSmall=+Wc28WQsy2cxRQDc1ThqCA==, figureFileBig=xiPdSU03lf8P6OA1M3wYvw==, tableContent=null), ArticleFig(id=1241838646559571987, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图2, caption=
两种旋转型蜂窝胞元, figureFileSmall=+Wc28WQsy2cxRQDc1ThqCA==, figureFileBig=xiPdSU03lf8P6OA1M3wYvw==, tableContent=null), ArticleFig(id=1241838646668623896, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.3, caption=
Nominal stress-strain curve and energy absorption efficiency curve of honeycomb structure, figureFileSmall=yUdWqK3HeQzLPqIUlApU5A==, figureFileBig=OIppRHbliXlXdUSuDTpeQw==, tableContent=null), ArticleFig(id=1241838646727344157, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图3, caption=
蜂窝结构名义应力-应变曲线及能量吸收效率曲线, figureFileSmall=yUdWqK3HeQzLPqIUlApU5A==, figureFileBig=OIppRHbliXlXdUSuDTpeQw==, tableContent=null), ArticleFig(id=1241838646807035939, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.4, caption=
Calculation models of three kinds of honeycomb structure, figureFileSmall=xMx4ifFQERTn5KXfMrA42Q==, figureFileBig=HtYI+bPflokCniRrMoH0FQ==, tableContent=null), ArticleFig(id=1241838646861561896, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图4, caption=
三种蜂窝结构的计算模型, figureFileSmall=xMx4ifFQERTn5KXfMrA42Q==, figureFileBig=HtYI+bPflokCniRrMoH0FQ==, tableContent=null), ArticleFig(id=1241838646949642284, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.5, caption=
Three dimensional diagrams of three honeycomb structures, figureFileSmall=3C0OQkecCO/voTHA+KRp6g==, figureFileBig=k7j0dqbkaUQmB/U556B45A==, tableContent=null), ArticleFig(id=1241838647008362545, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图5, caption=
三种蜂窝结构的三维图, figureFileSmall=3C0OQkecCO/voTHA+KRp6g==, figureFileBig=k7j0dqbkaUQmB/U556B45A==, tableContent=null), ArticleFig(id=1241838647171940406, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.6, caption=
The time-varying curve of the proportion of hourglass energy to the total energy of the system when the traditional star-shaped honeycomb is impacted, figureFileSmall=L0n6q4Jmhqbz+g7eKs7GMw==, figureFileBig=zypRpVKW7gpekV5foxrk8Q==, tableContent=null), ArticleFig(id=1241838647247437884, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图6, caption=
传统星形蜂窝受冲击时沙漏能占系统总能量的比例随时间变化的曲线, figureFileSmall=L0n6q4Jmhqbz+g7eKs7GMw==, figureFileBig=zypRpVKW7gpekV5foxrk8Q==, tableContent=null), ArticleFig(id=1241838647343906880, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.7, caption=
Comparison between simulation results and literature results, figureFileSmall=L0GZRaOv/GmeqNshkf/OFQ==, figureFileBig=Y+iboj5ngOBc/aLguoVoJA==, tableContent=null), ArticleFig(id=1241838647444570180, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图7, caption=
仿真结果与文献结果对比图, figureFileSmall=L0GZRaOv/GmeqNshkf/OFQ==, figureFileBig=Y+iboj5ngOBc/aLguoVoJA==, tableContent=null), ArticleFig(id=1241838647536844873, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.8, caption=
Macroscopic deformation mode of three models when v=3 m/s, figureFileSmall=IJTH4Dhs6aEgD4/z/oaahA==, figureFileBig=dkVmjvKkiC16YNoTtwVY6Q==, tableContent=null), ArticleFig(id=1241838647641702478, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图8, caption=
v=3 m/s时三种模型的宏观变形模式, figureFileSmall=IJTH4Dhs6aEgD4/z/oaahA==, figureFileBig=dkVmjvKkiC16YNoTtwVY6Q==, tableContent=null), ArticleFig(id=1241838647771725905, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.9, caption=
Macroscopic deformation mode of three models when v=10 m/s, figureFileSmall=YrK4EctvyI58fC+fcP0VsQ==, figureFileBig=xCvzXwy3CiI8r6PQamZ3NQ==, tableContent=null), ArticleFig(id=1241838647859806293, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图9, caption=
v=10 m/s时三种模型的宏观变形模式, figureFileSmall=YrK4EctvyI58fC+fcP0VsQ==, figureFileBig=xCvzXwy3CiI8r6PQamZ3NQ==, tableContent=null), ArticleFig(id=1241838647973052504, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.10, caption=
Macroscopic deformation mode of three models when v=20 m/s, figureFileSmall=KMPovbQbgJx1D7sgW1nTeQ==, figureFileBig=HAlO52vQKjR/67UwqGPVcQ==, tableContent=null), ArticleFig(id=1241838648048549979, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图10, caption=
v=20 m/s时三种模型的宏观变形模式, figureFileSmall=KMPovbQbgJx1D7sgW1nTeQ==, figureFileBig=HAlO52vQKjR/67UwqGPVcQ==, tableContent=null), ArticleFig(id=1241838648140824673, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.11, caption=
Macroscopic deformation mode of three models when v=60 m/s, figureFileSmall=x7kesrzby1MJUhXjdXyNVg==, figureFileBig=v8aUVEwAmfOFYZ+/R34TPg==, tableContent=null), ArticleFig(id=1241838648216322146, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图11, caption=
v=60 m/s时三种模型的宏观变形模式, figureFileSmall=x7kesrzby1MJUhXjdXyNVg==, figureFileBig=v8aUVEwAmfOFYZ+/R34TPg==, tableContent=null), ArticleFig(id=1241838648300208231, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.12, caption=
Macroscopic deformation mode of three models when v=120 m/s, figureFileSmall=lPMNmCQGVIvpoDQh9yPjmg==, figureFileBig=lWTMfLVOhpd8nid+5xf8Aw==, tableContent=null), ArticleFig(id=1241838648375705706, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图12, caption=
v=120 m/s时三种模型的宏观变形模式, figureFileSmall=lPMNmCQGVIvpoDQh9yPjmg==, figureFileBig=lWTMfLVOhpd8nid+5xf8Aw==, tableContent=null), ArticleFig(id=1241838648463786093, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.13, caption=
Microscopic deformation mode of three models, figureFileSmall=qiOIm+uquoWbWSHHWWJB8g==, figureFileBig=ULCaHFC651qYnGV87Q+dWw==, tableContent=null), ArticleFig(id=1241838648585420913, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图13, caption=
三种模型的微观变形模式, figureFileSmall=qiOIm+uquoWbWSHHWWJB8g==, figureFileBig=ULCaHFC651qYnGV87Q+dWw==, tableContent=null), ArticleFig(id=1241838648673501299, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.14, caption=
Stress nephograms of two new honeycomb structures under the impact velocity of 20 m/s, figureFileSmall=PekU16lneOtzUUwyFsL0vw==, figureFileBig=zTSgHuSnNlCh/SBBt4wsWQ==, tableContent=null), ArticleFig(id=1241838648769970299, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图14, caption=
两种新型蜂窝结构在20 m/s冲击速度下的应力云图, figureFileSmall=PekU16lneOtzUUwyFsL0vw==, figureFileBig=zTSgHuSnNlCh/SBBt4wsWQ==, tableContent=null), ArticleFig(id=1241838648933548161, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.15, caption=
Nominal stress-strain curves of honeycomb structures subjected to in-plane impact loads, figureFileSmall=ZjHk44r152zIJ1J8OceKng==, figureFileBig=XQrXSPLonB++NdXrV2+Ksg==, tableContent=null), ArticleFig(id=1241838649042600069, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图15, caption=
蜂窝结构在面内冲击载荷作用下的名义应力应变曲线, figureFileSmall=ZjHk44r152zIJ1J8OceKng==, figureFileBig=XQrXSPLonB++NdXrV2+Ksg==, tableContent=null), ArticleFig(id=1241838649147457675, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.16, caption=
Stress-strain curve of three models under different impact velocities, figureFileSmall=61KMNkajLcDzd5H10/SF/Q==, figureFileBig=E0roDYwI7jjFIB/em4o7Dw==, tableContent=null), ArticleFig(id=1241838649285869708, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图16, caption=
三种模型在不同冲击速度下的应力-应变曲线, figureFileSmall=61KMNkajLcDzd5H10/SF/Q==, figureFileBig=E0roDYwI7jjFIB/em4o7Dw==, tableContent=null), ArticleFig(id=1241838649382338702, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.17, caption=
Platform stress-velocity curve of three models, figureFileSmall=bJoom+9kfXnj9EzZ2AYx2w==, figureFileBig=VsKuQ0pZO+/Gwz6GUc0Pgw==, tableContent=null), ArticleFig(id=1241838649487196307, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图17, caption=
三种模型的平台应力-速度曲线, figureFileSmall=bJoom+9kfXnj9EzZ2AYx2w==, figureFileBig=VsKuQ0pZO+/Gwz6GUc0Pgw==, tableContent=null), ArticleFig(id=1241838650581909657, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.18, caption=
Compact strain-velocity curves of three models, figureFileSmall=1XcxR8eRHcENx3qrN2Tevg==, figureFileBig=Iz7o9zJ405UwteyjmANgUg==, tableContent=null), ArticleFig(id=1241838650682572956, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图18, caption=
三种模型的密实应变-速度曲线, figureFileSmall=1XcxR8eRHcENx3qrN2Tevg==, figureFileBig=Iz7o9zJ405UwteyjmANgUg==, tableContent=null), ArticleFig(id=1241838650758070432, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.19, caption=
Compression load efficiency-velocity curves of three models, figureFileSmall=a34ddzzEpu+9KH+8qFGZWg==, figureFileBig=ooEdF4PcRtEU7gWml/DKLA==, tableContent=null), ArticleFig(id=1241838650850345123, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图19, caption=
三种模型的压缩载荷效率-速度曲线, figureFileSmall=a34ddzzEpu+9KH+8qFGZWg==, figureFileBig=ooEdF4PcRtEU7gWml/DKLA==, tableContent=null), ArticleFig(id=1241838650955202726, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.20, caption=
Platform load uniformity-velocity curves of three models, figureFileSmall=1ug5CgL+sh4LN32sG3m5eA==, figureFileBig=voPGbyjS4wIntOUZK3wnZg==, tableContent=null), ArticleFig(id=1241838651034894506, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图20, caption=
三种模型的平台载荷均匀度-速度曲线, figureFileSmall=1ug5CgL+sh4LN32sG3m5eA==, figureFileBig=voPGbyjS4wIntOUZK3wnZg==, tableContent=null), ArticleFig(id=1241838651110391980, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Fig.21, caption=
Specific energy absorption-strain curve of three models under different impact velocities, figureFileSmall=gpW/+MPE7zYru6SfSTyr8A==, figureFileBig=0Z5wxOTslc/rec15DsaP5Q==, tableContent=null), ArticleFig(id=1241838651215249585, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=图21, caption=
三种模型在不同冲击速度作用下的比吸能-应变曲线, figureFileSmall=gpW/+MPE7zYru6SfSTyr8A==, figureFileBig=0Z5wxOTslc/rec15DsaP5Q==, tableContent=null), ArticleFig(id=1241838651315912885, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Table 1, caption=
Aluminum alloy Al6016 true stress σt and true plastic strain 
, figureFileSmall=null, figureFileBig=null, tableContent=
| σt(MPa) | 180 | 190 | 210 | 225 | 235 | 245 |
 | 0 | 0.01 | 0.02 | 0.03 | 0.04 | 0.05 |
), ArticleFig(id=1241838651403993271, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=表1, caption=
铝合金Al6016真实应力σt与真实塑性应变
, figureFileSmall=null, figureFileBig=null, tableContent=
| σt(MPa) | 180 | 190 | 210 | 225 | 235 | 245 |
 | 0 | 0.01 | 0.02 | 0.03 | 0.04 | 0.05 |
), ArticleFig(id=1241838651492073658, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Table 2, caption=
Platform stress of three models under different impact velocities
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 σm(MPa) | 模型2 σm(MPa) | 模型3 σm(MPa) |
|---|
| 3 | 1.100 | 1.043 | 0.985 |
| 10 | 1.408 | 1.699 | 1.074 |
| 20 | 1.439 | 2.821 | 2.196 |
| 60 | 6.359 | 3.080 | 4.219 |
| 120 | 12.286 | 10.138 | 16.942 |
), ArticleFig(id=1241838651571765438, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=表2, caption=
三种模型在不同冲击速度下的平台应力
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 σm(MPa) | 模型2 σm(MPa) | 模型3 σm(MPa) |
|---|
| 3 | 1.100 | 1.043 | 0.985 |
| 10 | 1.408 | 1.699 | 1.074 |
| 20 | 1.439 | 2.821 | 2.196 |
| 60 | 6.359 | 3.080 | 4.219 |
| 120 | 12.286 | 10.138 | 16.942 |
), ArticleFig(id=1241838651659845826, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Table 3, caption=
The compact strain of three models under different impact velocities
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 εd | 模型2 εd | 模型3 εd |
|---|
| 3 | 0.665 | 0.683 | 0.635 |
| 10 | 0.724 | 0.733 | 0.700 |
| 20 | 0.737 | 0.748 | 0.751 |
| 60 | 0.781 | 0.780 | 0.784 |
| 120 | 0.801 | 0.802 | 0.827 |
), ArticleFig(id=1241838651764703428, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=表3, caption=
三种模型在不同冲击速度下的密实应变
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 εd | 模型2 εd | 模型3 εd |
|---|
| 3 | 0.665 | 0.683 | 0.635 |
| 10 | 0.724 | 0.733 | 0.700 |
| 20 | 0.737 | 0.748 | 0.751 |
| 60 | 0.781 | 0.780 | 0.784 |
| 120 | 0.801 | 0.802 | 0.827 |
), ArticleFig(id=1241838651861172422, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Table 4, caption=
Compressive load efficiency of three models under different impact velocities
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 φc | 模型2 φc | 模型3 φc |
|---|
| 3 | 0.949 | 1.051 | 0.860 |
| 10 | 0.672 | 0.718 | 0.933 |
| 20 | 0.809 | 0.739 | 0.458 |
| 60 | 0.244 | 0.259 | 0.787 |
| 120 | 0.538 | 0.848 | 0.667 |
), ArticleFig(id=1241838651978612936, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=表4, caption=
三种模型在不同冲击速度下的压缩载荷效率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 φc | 模型2 φc | 模型3 φc |
|---|
| 3 | 0.949 | 1.051 | 0.860 |
| 10 | 0.672 | 0.718 | 0.933 |
| 20 | 0.809 | 0.739 | 0.458 |
| 60 | 0.244 | 0.259 | 0.787 |
| 120 | 0.538 | 0.848 | 0.667 |
), ArticleFig(id=1241838652058304715, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=EN, label=Table 5, caption=
Platform load uniformity of three models under different impact velocities
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 ωf | 模型2 ωf | 模型3 ωf |
|---|
| 3 | 1.035 | 0.463 | 0.419 |
| 10 | 0.619 | 1.163 | 0.688 |
| 20 | 0.692 | 0.597 | 0.929 |
| 60 | 3.660 | 2.644 | 2.975 |
| 120 | 1.568 | 1.574 | 2.204 |
), ArticleFig(id=1241838652163162317, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241838625969734288, language=CN, label=表5, caption=
三种模型在不同冲击速度下的平台载荷均匀度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 速度v(m/s) | 模型1 ωf | 模型2 ωf | 模型3 ωf |
|---|
| 3 | 1.035 | 0.463 | 0.419 |
| 10 | 0.619 | 1.163 | 0.688 |
| 20 | 0.692 | 0.597 | 0.929 |
| 60 | 3.660 | 2.644 | 2.975 |
| 120 | 1.568 | 1.574 | 2.204 |
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