| タイトル | Deformation mechanisms in negative Poisson's ratio materials - Structural aspects |
| 著者（英） | Lakes, R. |
| 著者所属（英） | Iowa Univ. |
| 発行日 | 1991-05-01 |
| 言語 | eng |
| 内容記述 | Poisson's ratio in materials is governed by the following aspects of the microstructure: the presence of rotational degrees of freedom, non-affine deformation kinematics, or anisotropic structure. Several structural models are examined. The non-affine kinematics are seen to be essential for the production of negative Poisson's ratios for isotropic materials containing central force linkages of positive stiffness. Non-central forces combined with pre-load can also give rise to a negative Poisson's ratio in isotropic materials. A chiral microstructure with non-central force interaction or non-affine deformation can also exhibit a negative Poisson's ratio. Toughness and damage resistance in these materials may be affected by the Poisson's ratio itself, as well as by generalized continuum aspects associated with the microstructure. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 91A37814 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/348193 |
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