Due to the sub-wavelength structural characteristics and excellent wave regulation ability, metamaterials have important application value regulating acoustic and elastic waves. After more than 20 years of continuous development, the achievements of acoustics and elastic metamaterials have become very abundant. Especially in recent years, with the increasingly close integration with engineering a…
Metamaterials are artificially created materials or structures with properties not found in nature. They encompass electromagnetic, acoustic, and mechanical metamaterials, which are particularly significant in applied engineering. Mechanical metamaterials exhibit unique mechanical properties such as vanishing shear modulus, negative Poisson’s ratio, negative compressibility, etc. This paper revie…
Abstract:The modeling of plastic deformation over the length scales has still been a challengeable problem. One of the most crucial defect interactions related to the plasticity is the reaction between the dislocation and GB, that is, GB strengthening of Hall-Petch law from the materials science view and also improvement of ductility due to the slip […]
