Branched natural fibrous composites for improved technical components

用于改进技术组件的支化天然纤维复合材料

• 批准号: 128716029
• 负责人: Professor Dr.-Ing. Werner Hufenbach
• 金额: --
• 依托单位: Institut für Leichtbau und Kunststofftechnik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/128716029?language=en
• 关键词: Branched; natural; fibrous; composites; improved

The major goal of this project is the development of structurally optimized, branched fibrous compound structures for technical use as lightweight construction elements with a high load-bearing capacity inspired by hierarchically organized, branched plant structures. The biological role models for these elements are the ramifications of selected plant species with a pronounced fibre-matrix-structure, optimised in the course of biological evolution under various kinds of static and dynamic loads. It could be shown in the project phases 1 and 2 that stem-branch attachments in Dragon trees (Dracaena spp.) and different Freycinetia-species (both arborescent monocotyledons) and branched columnar cacti possess a high potential for transfer into technical adaptation. Further analysis of the hierarchical composition at the branching regions (structuring and multiscale mechanics of branching regions on various hierarchical levels, arrangement and orientation of fibre-/wood-bundles and fibres, internal structure of the wood fibres) and evaluation of the mechanical significance of the specific arrangement of fibre-/wood-bundles and fibres by means of modern state-of-the-art material testing and simulation techniques, allowed to adjust and modify the customised manufacturing processes developed in phase 1 and 2, and to further develop the manufacture of innovative fibrous compound structures inspired by biological models.

该项目的主要目的是开发结构优化的分支纤维化合物结构，以技术用作作为轻巧的施工元素，其高负载能力受层次有组织的分支植物结构的启发。这些元素的生物学作用模型是所选植物物种具有明显的纤维 - 矩阵结构的后果，在各种静态和动态载荷下在生物进化过程中进行了优化。可以在项目第1和第2阶段中显示，该阶段的分支附件（Dracaena spp。）和不同的Freycinetia种类（均为Arborescent Monocotyledons）和分支柱状仙人掌具有很高的转移潜力，可以转移到技术适应中。进一步分析分支区域的分层组成（分支区域的结构和多尺度机制在各种层次水平上，纤维/木板和纤维的布置和方向，木材纤维的内部结构，木制纤维的内部结构），以及对纤维的材料和现代材料的机械效果的机械效果的机械意义的评估，并允许了现代的材料 - 均匀的材料 - 均匀的材料 - 均匀的材料 - 以及现代的材料 - 均匀的材料 - 均匀的材料 - 均匀的材料 - 均匀的材料 - 均匀的现代效果 - 并修改在第1阶段和第2阶段开发的定制制造过程，并进一步开发受生物模型启发的创新纤维化合物结构的制造。