Metamaterials are rationally designed composites aiming at effective material parameters
that go beyond those of the ingredient materials. For example, negative metamaterial …

Micro scale experiments demonstrated that the material deformation behaviors of some
metals and polymers deformed elasticity are size dependence, and the modified couple …

A standard experimental method for determining the intrinsic material length scale of
modified couple stress theory is proposed based on a non-contact laser Doppler vibration …

This research presents an exhaustive analysis on the buckling behavior of two-dimensional
functionally graded (2D-FG) tapered Euler–Bernoulli beams made of porous materials in …

The main contribution of this study is to propose an efficient and straightforward numerical
model for exploring size-dependent geometrically nonlinear static and dynamic …

The localization of elastic wave at defect in phononic crystals (PnCs) has been applied to
design piezoelectric energy harvesting (PEH) devices. However, the earlier researches …

This paper is devoted to examining the nonlinear vibrational behaviors of functionally
graded (FG) sandwich nanobeams in the presence of initial geometric imperfection. Based …

In this article, a refined modified couple stress theory based on isogeomeric analysis to
capture the small-scale effect on laminated composite micro-plates is developed for the first …

The vibration behaviour of a geometrically imperfect three-layered shear-deformable
microbeam is analysed via model development and numerical simulations. Taking into …

Higher-order deformation theories, such as the couple stress and strain gradient theory,
have been widely used to predict the mechanical behavior of micro/nano-scale structures. In …