Auxetic Textiles

Sponsor:

Hanesbrands, Inc.

Team Members:

Mitchell Pace

George Corbin

Xuwen Zhao

Michael Zito

Project Statement:

Auxetics materials have a negative Poisson’s ratio that when stretched, become thicker perpendicular to the applied force.  Auxetics can be illustrated with an inelastic string wound around an elastic cord. When the ends of the structure are pulled apart, the inelastic string straightens while the elastic cord stretches and winds around it, increasing the structure’s effective volume. Applications in auxetic materials have been demonstrated for shock absorption in military applications and athletic shoes. The objective of this project is to develop an lightweight (<130 gsm) innovative garment product that benefits from the use of an auxetic structure (in yarn or textile form).  The goal is for the fabric to provide more coverage (or at least no sheerness) when stretched. The prototype should include testing strategies for the evaluation of this bi-axial properties of the auxetic property.