Mechanical properties of sandwich composites with 3d-printed auxetic and non-auxetic lattice cores under low velocity impact
نویسندگان
چکیده
منابع مشابه
Finite Element Modeling of Multilayer Orthogonal Auxetic Composites under Low-Velocity Impact
The multilayer orthogonal auxetic composites have been previously developed and tested to prove that they own excellent energy absorption and impact protection characteristics in a specific strain range under low-velocity impact. In this study, a three dimensional finite element (FE) model in ANSYS LS-DYNA was established to simulate the mechanical behavior of auxetic composites under low-veloc...
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Auxetic mechanical metamaterials are engineered systems that exhibit the unusual macroscopic property of a negative Poisson's ratio due to sub-unit structure rather than chemical composition. Although their unique behaviour makes them superior to conventional materials in many practical applications, they are limited in availability. Here, we propose a new class of hierarchical auxetics based o...
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Auxetic cellular solids in the forms of honeycombs and foams have great potential in a diverse range of applications, including as core material in curved sandwich panel composite components, radome applications, directional pass band filters, adaptive and deployable structures, filters and sieves, seat cushion material, energy absorption components, viscoelastic damping materials and fastening...
متن کاملA THEORETICAL STUDY OF ZEOLITE ABW: ITS MECHANICAL AND AUXETIC PROPERTIES.
Atomistic simulations are carried out for zeolite with ABW framework. The structure is modeled and force field simulations are preformed to investigate its elastic properties, bulk, shear modulus and auxeticity. Bulk moduli (Ks), Shear moduli (G), and Poissons ratios (ν) were found to be Ks=79.71725 GPa, G=16.93265 GPa, νxy = -0.2207, νxz= -0.5730, νyx= -0.71717, νyz=0.87013, νzx= -0.33097 and ...
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ژورنال
عنوان ژورنال: Materials & Design
سال: 2018
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2018.11.002