Publication

Trusses beyond trusses: intertwined and straw-based metamaterials and beyond

2026

Abstract

Periodic beam-based metamaterials have been extensively explored for their tunable stiffness, strength, and wave dispersion. Recent efforts extend this concept by maintaining the lattice topology but replacing beams by more complex structural members—such as straws or intertwined fibers. These mechanical metamaterials leverage underexplored mechanisms from the small-scale design such as contact, friction, and sliding, or multistability and reversible reconfigurability. This provides opportunities for untapped design spaces and performance exploration.

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2026

Abstract

Official source

Related concepts (27)

Metamaterial

A metamaterial (from the Greek word μετά meta, meaning "beyond" or "after", and the Latin word materia, meaning "matter" or "material") is any material engineered to have a property that is rarely observed in naturally occurring materials. They are made from assemblies of multiple elements fashioned from composite materials such as metals and plastics. These materials are usually arranged in repeating patterns, at scales that are smaller than the wavelengths of the phenomena they influence.

History of metamaterials

The history of metamaterials begins with artificial dielectrics in microwave engineering as it developed just after World War II. Yet, there are seminal explorations of artificial materials for manipulating electromagnetic waves at the end of the 19th century. Hence, the history of metamaterials is essentially a history of developing certain types of manufactured materials, which interact at radio frequency, microwave, and later optical frequencies.

Terahertz metamaterial

A terahertz metamaterial is a class of composite metamaterials designed to interact at terahertz (THz) frequencies. The terahertz frequency range used in materials research is usually defined as 0.1 to 10 THz. This bandwidth is also known as the terahertz gap because it is noticeably underutilized. This is because terahertz waves are electromagnetic waves with frequencies higher than microwaves but lower than infrared radiation and visible light.

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