negative Poisson's ratioMonte Carlo simulations in the isobaric鈥搃sothermal ensemble with variable shape of the periodic box are used to study elastic properties of two-dimensional (2D) model systems of hard discs with parallel layers of hard cyclic hexamers. Both the particles in their pure ...
The native Sn atoms along x direction are attracted toward the adatoms while repelled along y direction resulting in lattice distortions with a positive Poisson’s ratio. It is noticed that the adsorption of additional O atoms has little effect on the lattice distortion, see Fig. 2(e). SnO...
3g and h. This advanced technique can not only control the macroscopic shape of aerogels, but also adjust their Poisson's ratio (from negative to positive) and improve their mechanical properties. In another case, Zhang and co-workers synthesized Ag-MnO2 nanowire hybrid aerogels through ...
Stretchable and negative-Poisson-ratio porous metamaterials Article Open access 09 January 2024 Introduction Studies of magnetic wires have drawn considerable attention to the scientific community over the past few decades due to its immense possibilities for the development of low cost, highly sensitive...
Based on Pugh ratio (B/G, 1.75) and Poisson's ratio (σ, 0.26) criteria, all Al4(Ca,m) phases are ascertained as ductile materials. Cu and Zn can increase the ductility of Al4Ca and the situation is in contrary after doping of Mg, Fe and Mn. Mn is the ideal element for ...
This research employed an integrated design method with 3D printing to endow a base polymer for unique mechanical properties, i.e., enhanced effective elastic modulus or negative Poisson's ratio using continuous carbon fibres (CCF). A multidisciplinary technique integrating homogenisation-based topology ...
Based on Pugh ratio (B/G, 1.75) and Poisson's ratio (蟽, 0.26) criteria, all Al4(Ca,m) phases are ascertained as ductile materials. Cu and Zn can increase the ductility of Al4Ca and the situation is in contrary after doping of Mg, Fe and Mn. Mn is the ideal element for ...
Poisson ratioshear modulusthermal expansionthermoelasticityYoung's modulus/ laminated composites tailoringglass fibers usethermal expansion coefficientsAn analysis, together with experiments, has been made toward an intention indicated by the title of the paper. A simple closed-form expression is derived for...
aSchematic of the experimental setup including a 1-mm-thick steel barrier (densityρB = 8000 kg·m-3, Young’s modulusEB = 200 GPa, and Poisson ratioνB = 0.29). Here,LTB = 0.30 m andLBO = 0.25 m.bA geometry of the object.cTransmittance curves of...
negative poisson's ratioextreme materialsmicromechanicsThis paper describes a method to design the periodic microstructure of a material to obtain prescribed constitutive properties. The microstructure is modelled as a truss or thin frame structure in 2 and 3 dimensions. The problem of finding the ...