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Auxetic materials have garnered attention due to their novel behavior under deformation and numerous other material properties, such as fracture resistance, shear resistance, and energy absorption. By integrating hyperelastic materials with auxetic structures, the highly deformable capability enables the design of structures with enhanced mechanical tunability.To this end, a design methodology for 3D printed auxetic structures with improved mechanical adjustability was proposed. The in-plane compressive behavior of the designed structures was investigated through test and numerical analyses. The results demonstrate that, compared to conventional auxetic structures, the composite material with auxetics structures exhibits higher stiffness and enhanced energy absorption performance. By further adjusting the distribution and amplitude of sinusoidal ligaments, auxetic structures with tunable energy absorption, Poisson ratio, and deformation modes were generated. This study presents a design approach for improving the mechanical properties and energy absorption of lightweight structures.
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拉胀材料因其在变形下的新颖行为以及许多其他的材料特性(如抗断裂性、抗剪切性和能量吸收)而受到关注。将超弹性材料与拉胀结构相结合,它们的高度可变形的能力使设计具有增强力学可调性的结构成为可能。为此,提出了一种具有增强力学可调性的3D打印拉胀结构的设计方法。通过试验和数值分析,研究了所设计结构的面内压缩行为。结果表明,与传统的拉胀结构相比,具有拉胀结构的复合材料表现出了更高的刚度和增强的能量吸收性能。通过进一步调整正弦韧带的分布和振幅,生成了具有可调能量吸收、泊松比和变形模式的拉胀结构。展示了一种用于提高轻质结构的力学性能和能量吸收的设计方法。
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Diagram of the sinusoidal lattice model, figureFileSmall=CgCDWvdYH3qDJfpw6JbAnw==, figureFileBig=AORrCy/oNmOlRaIgAREuQA==, tableContent=null), ArticleFig(id=1241446443249094792, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图1, caption=
正弦晶格模型图, figureFileSmall=CgCDWvdYH3qDJfpw6JbAnw==, figureFileBig=AORrCy/oNmOlRaIgAREuQA==, tableContent=null), ArticleFig(id=1241446443458810002, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 2, caption=
Flow chart of the computer aided design of the sinusoidal structure, figureFileSmall=YHG7XJe+uGqy1T7ItYCYmw==, figureFileBig=J1BLf2OLurj26Fn8ZwnUEg==, tableContent=null), ArticleFig(id=1241446443530113173, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图2, caption=
正弦结构的计算机辅助设计流程图, figureFileSmall=YHG7XJe+uGqy1T7ItYCYmw==, figureFileBig=J1BLf2OLurj26Fn8ZwnUEg==, tableContent=null), ArticleFig(id=1241446443626582170, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 3, caption=
Mechanical model of the material, figureFileSmall=lxRYttEcSvmM7iAGVonLCQ==, figureFileBig=Y65QmrQNhxVwjd4sqe6rcg==, tableContent=null), ArticleFig(id=1241446443706273950, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图3, caption=
材料的力学模型, figureFileSmall=lxRYttEcSvmM7iAGVonLCQ==, figureFileBig=Y65QmrQNhxVwjd4sqe6rcg==, tableContent=null), ArticleFig(id=1241446443794354336, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 4, caption=
Calculation model of lattice deformation and Poisson ratio under compressive load, figureFileSmall=TXQWmc/hKO3tatbOKKN+3g==, figureFileBig=9ygaDFcb8NPYBIqyXZGKLQ==, tableContent=null), ArticleFig(id=1241446443878240419, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图4, caption=
晶格在压缩载荷作用下的变形与泊松比计算模型, figureFileSmall=TXQWmc/hKO3tatbOKKN+3g==, figureFileBig=9ygaDFcb8NPYBIqyXZGKLQ==, tableContent=null), ArticleFig(id=1241446444037623974, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 5, caption=
Deformation diagrams of the test and the finite element model under uniaxial compression, figureFileSmall=jAce7MVxyWNUGyarWPReJA==, figureFileBig=OiQ1bTTIl8epoUhkbIJA4w==, tableContent=null), ArticleFig(id=1241446444142481580, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图5, caption=
试验和有限元模型在单轴压缩下的变形图, figureFileSmall=jAce7MVxyWNUGyarWPReJA==, figureFileBig=OiQ1bTTIl8epoUhkbIJA4w==, tableContent=null), ArticleFig(id=1241446444226367666, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 6, caption=
Strain-Poisson ratio curves of different structures, figureFileSmall=HUo2sgfyWyK3FV8W7MvurQ==, figureFileBig=vtP5HbpOXY8speDuhmMCsQ==, tableContent=null), ArticleFig(id=1241446444343808181, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图6, caption=
不同结构的应变-泊松比曲线, figureFileSmall=HUo2sgfyWyK3FV8W7MvurQ==, figureFileBig=vtP5HbpOXY8speDuhmMCsQ==, tableContent=null), ArticleFig(id=1241446444444471481, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 7, caption=
Stress-strain curves of different structures, figureFileSmall=Hz9/ggDM54N6Q9dzaW1gJA==, figureFileBig=wHvUVe0vi068jKdjyyQmuA==, tableContent=null), ArticleFig(id=1241446444545134780, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图7, caption=
不同结构的应力-应变曲线, figureFileSmall=Hz9/ggDM54N6Q9dzaW1gJA==, figureFileBig=wHvUVe0vi068jKdjyyQmuA==, tableContent=null), ArticleFig(id=1241446444612243649, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 8, caption=
Stress-strain curves of different structures under ε=0.6, figureFileSmall=uXFq8O2M9wg9U1clqwZ1TA==, figureFileBig=CghKHjN4/KcSATiWSvVHXw==, tableContent=null), ArticleFig(id=1241446444721295558, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图8, caption=
不同结构在ε=0.6下的应力-应变曲线, figureFileSmall=uXFq8O2M9wg9U1clqwZ1TA==, figureFileBig=CghKHjN4/KcSATiWSvVHXw==, tableContent=null), ArticleFig(id=1241446444817764553, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 9, caption=
SEA comparison of the three structures, figureFileSmall=3sFtd0VtAi6OBTSfqUlyAg==, figureFileBig=jXrZne1p14jIkde/y4zcNA==, tableContent=null), ArticleFig(id=1241446444893262029, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图9, caption=
3种结构的SEA比较, figureFileSmall=3sFtd0VtAi6OBTSfqUlyAg==, figureFileBig=jXrZne1p14jIkde/y4zcNA==, tableContent=null), ArticleFig(id=1241446444998119633, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 10, caption=
Test sample, figureFileSmall=EyJstMIVyZGISYk1WRU5bg==, figureFileBig=2vr1avPNlEp2okoc1dREuQ==, tableContent=null), ArticleFig(id=1241446445111365845, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图10, caption=
试验样品, figureFileSmall=EyJstMIVyZGISYk1WRU5bg==, figureFileBig=2vr1avPNlEp2okoc1dREuQ==, tableContent=null), ArticleFig(id=1241446445216223450, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 11, caption=
Stress-strain curves of SARC material, figureFileSmall=LKM58xtftLkOLpS/pd+i1w==, figureFileBig=37ZKKrgkvk2srg8mrkTk1g==, tableContent=null), ArticleFig(id=1241446445312692450, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图11, caption=
SARC材料的应力-应变曲线, figureFileSmall=LKM58xtftLkOLpS/pd+i1w==, figureFileBig=37ZKKrgkvk2srg8mrkTk1g==, tableContent=null), ArticleFig(id=1241446446797476067, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 12, caption=
Comparison of mechanical properties of SARC material, figureFileSmall=G3MbHVrCEP3NEVRB1OQTig==, figureFileBig=4Qv63uRZfSmpsWshAj6heA==, tableContent=null), ArticleFig(id=1241446446914916586, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图12, caption=
SARC材料的机械性能比较, figureFileSmall=G3MbHVrCEP3NEVRB1OQTig==, figureFileBig=4Qv63uRZfSmpsWshAj6heA==, tableContent=null), ArticleFig(id=1241446447040745709, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 13, caption=
Effect of the wall thickness on mechanical properties, figureFileSmall=nzMnEdhNdiuUnQMSc9nvBg==, figureFileBig=Ujy05+rRhYVQjVUTlSgezw==, tableContent=null), ArticleFig(id=1241446447128826097, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图13, caption=
壁厚对机械性能的影响, figureFileSmall=nzMnEdhNdiuUnQMSc9nvBg==, figureFileBig=Ujy05+rRhYVQjVUTlSgezw==, tableContent=null), ArticleFig(id=1241446447225295095, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 14, caption=
Deformation comparison of anisotropic amplitude structures, figureFileSmall=xyAn1f6P+sK6sdg5D/8e0w==, figureFileBig=jWgeJ+QfHcwFeXNt1rFbkA==, tableContent=null), ArticleFig(id=1241446447334347004, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图14, caption=
各向异性振幅结构的变形对比, figureFileSmall=xyAn1f6P+sK6sdg5D/8e0w==, figureFileBig=jWgeJ+QfHcwFeXNt1rFbkA==, tableContent=null), ArticleFig(id=1241446447451787522, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 15, caption=
Poisson ratio-strain curves of anisotropic structures, figureFileSmall=Ji8RTfChRFjBb3JSvNCoyg==, figureFileBig=pdBGM+6QuxFYahPgtlotFA==, tableContent=null), ArticleFig(id=1241446447531479300, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图15, caption=
各向异性结构的泊松比-应变曲线, figureFileSmall=Ji8RTfChRFjBb3JSvNCoyg==, figureFileBig=pdBGM+6QuxFYahPgtlotFA==, tableContent=null), ArticleFig(id=1241446447632142600, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 16, caption=
SEA comparison of anisotropic structures, figureFileSmall=Igs5YM7uzdKbAk0KeqVW0Q==, figureFileBig=R9vEB1ByfHzX4g1N6v6DFA==, tableContent=null), ArticleFig(id=1241446447703445773, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图16, caption=
各向异性结构的SEA比较, figureFileSmall=Igs5YM7uzdKbAk0KeqVW0Q==, figureFileBig=R9vEB1ByfHzX4g1N6v6DFA==, tableContent=null), ArticleFig(id=1241446447808303376, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 17, caption=
Poisson ratio-strain curves of multiple amplitude sinusoidal structures, figureFileSmall=Irf4X/IUIOS6lCxP61nZBQ==, figureFileBig=5/RGwi049Hvb1gHHu/AQ0A==, tableContent=null), ArticleFig(id=1241446447929938195, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图17, caption=
多振幅组合结构的泊松比-应变曲线, figureFileSmall=Irf4X/IUIOS6lCxP61nZBQ==, figureFileBig=5/RGwi049Hvb1gHHu/AQ0A==, tableContent=null), ArticleFig(id=1241446448030601498, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 18, caption=
Deformation comparison of multiple amplitude sinusoidal structures, figureFileSmall=2M/vzoGkn/p1Wl4NJDv8TA==, figureFileBig=b7wBb2W9JTJ3hJPKYWVDWQ==, tableContent=null), ArticleFig(id=1241446448127070495, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图18, caption=
多振幅组合结构的变形对比, figureFileSmall=2M/vzoGkn/p1Wl4NJDv8TA==, figureFileBig=b7wBb2W9JTJ3hJPKYWVDWQ==, tableContent=null), ArticleFig(id=1241446448236122403, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=EN, label=Fig. 19, caption=
Effect of different number of cells on the Poisson ratio for two structures, figureFileSmall=BXJgJmuCuMp4ybh9rfHw1g==, figureFileBig=TnR0fKF7LqKZaAxwQaSbiA==, tableContent=null), ArticleFig(id=1241446448399700264, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241446430154478482, language=CN, label=图19, caption=
不同晶格数量对2种结构泊松比的影响, figureFileSmall=BXJgJmuCuMp4ybh9rfHw1g==, figureFileBig=TnR0fKF7LqKZaAxwQaSbiA==, tableContent=null)], attaches=null, journal=Journal(id=1227999351742652416, delFlag=0, nameCn=机械强度, nameEn=Journal of Mechanical Strength, nameHistory1=null, nameHistory2=null, issn=1001-9669, eissn=null, cn=41-1134/TH, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=9ETNXOzwmuGm49pLRqXxWw==, journalPrice=null, startedYear=null, abbrevIsoEn=Journal of Mechanical Strength, journalRemark=null, publicationField=null, createdTime=1770707460585, updatedTime=1770707700588, createdBy=18614031015, updatedBy=13701087609, firstLetterCn=J, 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