## Porous titanium materials with entangled wire structure for load-bearing biomedical applications.

- Guo Ping He, Ping Liu, Qingbiao Tan
- Journal of the mechanical behavior of biomedical…
- 2012

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@inproceedings{1AI, title={1 Advances in Negative Poisson ' S Ratio Materials}, author={} }

1. Introduction Poisson's ratio of a solid is defined as the lateral contraction strain divided by the longitudinal extension strain in a simple tension experiment. In almost all materials the Poisson's ratio, usually denoted by ν, is positive. For isotropic materials (those in which the properties are independent of direction), energy arguments in the theory of elasticity [1] may be used to show that-1 ≤ ν ≤ 1/2. The relationship between shear modulus G, bulk modulus K, and Poisson's ratio… CONTINUE READING