On the effective elastic constants of anti-tetra chiral tubular structure

Article Materials Science, Multidisciplinary

Modification of hexachiral unit cell to enhance auxetic stent performance

Amir Asadi et al.

Summary: In this study, three stents with negative Poisson's ratio were designed by improving the unit cell structure, and numerical and experimental investigations were conducted using different materials. The modified auxetic stents showed better auxeticity and Poisson's ratio, and had higher radial expansion, stress tolerance and yield strain, which helped to overcome the drawbacks of non-auxetic stents.

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES (2023)

Add to Collection

Article Engineering, Civil

Proposed auxetic cluster designs for lightweight structural beams with improved load bearing capacity

Hrishikesh G. Menon et al.

Summary: This paper focuses on exploring and improving the deflection behavior of auxetic beam structures. Two novel design concepts are proposed and demonstrated to have significant improvements in load bearing response compared to conventional designs.

ENGINEERING STRUCTURES (2022)

Add to Collection

Article Mechanics

A Novel Re-Entrant-Type Metamaterial with Tunable Negative Poisson's Ratios and Coefficients of Thermal Expansion

Fucong Lu et al.

Summary: A novel metamaterial is proposed in this study by introducing bi-material double-triangular elements into a standard re-entrant structure. The effect of geometrical parameters on negative Poisson's ratio and coefficient of thermal expansion is investigated and verified. The results show that the structure provides tunable Poisson's ratios and has enhanced elastic modulus and tailorable coefficient of thermal expansion.

INTERNATIONAL JOURNAL OF APPLIED MECHANICS (2022)

Add to Collection

Article Physics, Condensed Matter