College - Author 1

College of Engineering

Department - Author 1

Aerospace Engineering Department

College - Author 2

College of Engineering

Department - Author 2

Mechanical Engineering Department


Long Wang, California Polytechnic State University - San Luis Obispo, Department of Civil and Environmental Engineering

Funding Source

The Sprague Family, The National Science Foundation (grant no. 2138756, PI: Dr. Long Wang)




An auxetic structure is an arrangement of unit cells that under a uniaxial load experiences expansion in both the longitudinal and transverse directions, resulting in a negative Poisson’s ratio (NPR). Research in auxetics has led to new insights into how non-linear mechanical reactions can be applied to various engineering fields. This project utilized stereolithography (SLA) 3D printing to manufacture auxetic test specimens to analyze of geometry-driven NPRs. With the distinctive mechanical properties of auxetic structures and vast applications, the future of product development of these geometries seems promising.

Available for download on Saturday, September 28, 2024