论文信息 - Negative stiffness of a layer with topologically interlocked elements

Negative stiffness of a layer with topologically interlocked elements

Abstract Unusual mechanical response of a structure with topologically interlocked elements is discussed. Under point loading, it behaves pseudo-plastically, with a negative stiffness in part of the unloading curve. This effect is inherent in the structure and is attributed to changing contact conditions due to rotation of the elements.

[1] R. Lakes,et al. Extreme damping in composite materials with negative-stiffness inclusions , 2001, Nature.

[2] Elena Pasternak,et al. Topological interlocking of platonic solids: A way to new materials and structures , 2003 .

[3] Elena Pasternak,et al. A new concept in design of materials and structures: assemblies of interlocked tetrahedron-shaped elements , 2001 .

[4] R. Lakes. Extreme damping in composite materials with a negative stiffness phase. , 2001, Physical review letters.