Hybrid materials with negative Poisson's ratio inclusions
被引:32
|
作者:
Shufrin, Igor
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机构:
Univ Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia
Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, AustraliaUniv Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia
Shufrin, Igor
[1
,2
]
Pasternak, Elena
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机构:
Univ Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, AustraliaUniv Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia
Pasternak, Elena
[1
]
Dyskin, Arcady V.
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机构:
Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, AustraliaUniv Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia
Dyskin, Arcady V.
[2
]
机构:
[1] Univ Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia
[2] Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, Australia
Auxetic materials;
Sphere-reinforced composites;
Negative Poisson's ratio inclusions;
Finite element modelling of cubic inclusions;
Differential scheme for composite materials;
EFFECTIVE ELASTIC PROPERTIES;
AUXETIC BEHAVIOR;
THERMAL-EXPANSION;
COMPOSITES;
STIFFNESS;
MICROSTRUCTURE;
MODULUS;
SOLIDS;
SIZE;
D O I:
10.1016/j.ijengsci.2014.12.006
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
We consider hybrid materials consisting of auxetic (material with negative Poisson's ratio) and non-auxetic phases. The auxetic phase is represented by either spherical or cubic inclusions. We analyse the effective characteristics (the Young's and shear moduli and the Poisson's ratio) computed using either the differential scheme for the effective moduli of composites or the direct finite element simulations. The results are verified through Hashin-Shtrikrnan bounds. We demonstrate that by creating hybrids from auxetic and non-auxetic phases one can obtain considerable increase in stiffness over the stiffnesses of the phases. The stiffening effect is controlled by the value of the Poisson's ratios of the phases, shape of the auxetic inclusions and their concentration. Depending upon the concentration, the hybrid can be made both auxetic and non-auxetic. Even when the inclusions are cubic the hybrid is still nearly isotropic; it becomes truly orthotropic only when the Poisson's ratio of the auxetic phase is very close to the thermodynamic limit of -1. These findings can be applied directly in designing a new class of hybrid materials with enhanced stiffness. (C) 2015 Elsevier Ltd. All rights reserved.
机构:
Shanghai Univ, Shanghai Key Lab Mech Energy Engn, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R ChinaShanghai Univ, Shanghai Key Lab Mech Energy Engn, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China
Wan, Jing
Jiang, Jin-Wu
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机构:
Shanghai Univ, Shanghai Key Lab Mech Energy Engn, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R ChinaShanghai Univ, Shanghai Key Lab Mech Energy Engn, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China
Jiang, Jin-Wu
Park, Harold S.
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机构:
Boston Univ, Dept Mech Engn, Boston, MA 02215 USAShanghai Univ, Shanghai Key Lab Mech Energy Engn, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China
机构:
Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
Qin, Huasong
Sun, Yu
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h-index: 0
机构:
Xi An Jiao Tong Univ, Sch Mech Engn, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
Sun, Yu
Liu, Jefferson Zhe
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机构:
Monash Univ, Dept Mech & Aerosp Engn, Clayton, Vic 3800, AustraliaXi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
Liu, Jefferson Zhe
Li, Mengjie
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机构:
Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
Li, Mengjie
Liu, Yilun
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机构:
Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
Xi An Jiao Tong Univ, Shaanxi Engn Res Ctr Nondestruct Testing & Struct, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China