细胞固体的生物力学

Biomechanics of cellular solids.

作者信息

Gibson Lorna J

机构信息

Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 8-135, Cambridge, MA 02139, USA.

出版信息

J Biomech. 2005 Mar;38(3):377-99. doi: 10.1016/j.jbiomech.2004.09.027.

DOI:10.1016/j.jbiomech.2004.09.027

PMID:15652536

Abstract

Materials with a cellular structure are widespread in nature and include wood, cork, plant parenchyma and trabecular bone. Natural cellular materials are often mechanically efficient: the honeycomb-like microstructure of wood, for instance, gives it an exceptionally high performance index for resisting bending and buckling. Here we review the mechanics of a wide range of natural cellular materials and examine their role in lightweight natural sandwich structures (e.g. iris leaves) and natural tubular structures (e.g. plant stems or animal quills). We also describe two examples of engineered biomaterials with a cellular structure, designed to replace or regenerate tissue in the body.

摘要

具有细胞结构的材料在自然界中广泛存在，包括木材、软木、植物薄壁组织和骨小梁。天然细胞材料通常具有高效的力学性能：例如，木材的蜂窝状微观结构使其在抵抗弯曲和屈曲方面具有极高的性能指标。在这里，我们综述了多种天然细胞材料的力学性能，并研究它们在轻质天然夹层结构（如鸢尾叶）和天然管状结构（如植物茎或动物羽毛）中的作用。我们还描述了两种具有细胞结构的工程生物材料的实例，它们旨在替代或再生体内组织。