Metamaterials are an emerging type of man-made material capable of obtaining some
extraordinary properties that cannot be realized by naturally occurring materials. Due to …

Metamaterials (MMs), which include phononic crystals (PCs) as a particular type, exhibit
anomalous wave propagation properties through artificial design of topologies or lattice …

Despite their engineering significance, locally resonant metamaterials are facing the
challenge to cope with the need for broad-range band gap adjustment at low-frequencies …

An innovative special class of magnetorheological metamaterial is proposed to achieve a
tunable band gap using a new frequency feedback control law. By using the frequency …

Materials made from active, living, or robotic components can display emergent properties
arising from local sensing and computation. Here, we realize a freestanding active …

This paper combines negative capacitance (NC) with inductance (L) to enlarge low-
frequency bandgap width in locally resonant piezoelectric metamaterials. The studied …

This paper analytically and experimentally investigates the potential of a piezoelectric
metamaterial beam with a spatial grading pattern for broadband vibration attenuation …

It has been well explored in the literature that intentionally introduced (designed)
nonlinearities offer significant advantages in vibration absorption and isolation problems. In …

Strong nonlinearity usually becomes noticeable when nonlinear materials or structures
undergo large deformation. However, we present here the inverse nonlinearity, where the …

This paper proposes a general method to design multi-resonant piezoelectric metamaterials.
Such metamaterials contain periodically distributed piezoelectric patches bonded on the …