Journal ArticleDOI
Cellular solid structures with unbounded thermal expansion
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In this article, the authors explore the range of thermal expansion coefficient attainable in materials with microstructure, including composites, honeycombs, and foams, and explore the constitutive equation for a linear isotropic thermoelastic continuum.Abstract:
Thermal expansion of materials is of considerable practical interest since materials in service may experience a considerable range of operating temperature. Materials with microstructure, including composites, honeycombs, and foams (which are composites with one void phase) are finding increasing application for many purposes. It is therefore of interest to explore the range of thermal expansion coefficient attainable in materials with microstructure. The constitutive equation for a linear isotropic thermoelastic continuum is [1]:read more
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MonographDOI
The Theory of Composites
TL;DR: Some of the greatest scientists including Poisson, Faraday, Maxwell, Rayleigh, and Einstein have contributed to the theory of composite materials Mathematically, it is the study of partial differential equations with rapid oscillations in their coefficients Although extensively studied for more than a hundred years, an explosion of ideas in the last five decades has dramatically increased our understanding of the relationship between the properties of the constituent materials, the underlying microstructure of a composite, and the overall effective moduli which govern the macroscopic behavior as mentioned in this paper.
Journal ArticleDOI
Negative thermal expansion: a review
TL;DR: In this paper, the state of the art in NTE solids is reviewed, and understanding of the driving mechanisms of the effect is considered along with experimental and theoretical evidence, and various categories of solids with NTE are explored, and experimental methods for their experimental characterisation and applications for such solids are proposed.
Journal ArticleDOI
Mechanical design and multifunctional applications of chiral mechanical metamaterials: A review
TL;DR: In this paper, a review of 2D and 3D chiral mechanical metamaterials is presented, and their mechanical behaviors and deformation mechanisms can be investigated through equilibrium principle, strain energy analysis, micropolar elasticity and homogenization theories.
Journal ArticleDOI
Negative-Poisson's-Ratio Materials: Auxetic Solids
TL;DR: In this article, the role of Poisson's ratio in elasticity, two-dimensional and three-dimensional materials, phase transformations, underlying causes in the microstructure, and other negative physical properties are discussed.
Journal ArticleDOI
Compounds That Contract on Heating
TL;DR: In this article, various mechanisms to explain negative thermal expansion in oxides are presented, focusing on the mechanism based on transverse thermal motion of oxygen in M−O−M linkages.
References
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Journal ArticleDOI
Foam structures with a negative poisson's ratio
TL;DR: A novel foam structure is presented, which exhibits a negative Poisson's ratio, and such a material expands laterally when stretched, in contrast to ordinary materials.
Journal ArticleDOI
Analysis of Bi-Metal Thermostats
TL;DR: In this article, a general theory of bending of a bi-metal strip submitted to a uniform heating is presented, which is applied in analysis of the operation of a Bi-metal Strip thermostat.
Journal ArticleDOI
Materials with structural hierarchy
TL;DR: Understanding the effects of hierarchical structure can guide the synthesis of new materials with physical properties that are tailored for specific applications, as well as determining the bulk material properties.
Journal ArticleDOI
Stresses in Bi-Metal Thermostats
TL;DR: Determination de l'amplitude and de la distribution des contraintes dans les thermostats bi-metalliques soumis a des echauffements and des refroidissements uniformes as discussed by the authors.