Vibration dampening with honeycomb materials

In a study just published in Integrating Materials and Manufacturing Innovation, Dixon M. Correa, Carolyn Conner Seepersad, and Michael R. Haberman at the University of Texas at Austin describe a model of honeycomb materials they developed that includes negative stiffness in their construction and design, which allows the cells in the honeycomb to return to their original shape, making these materials reusable.