Development of a layered composite material with one-sided stiffeners and thin damping layer and characterization of its formability

一种具有单面加强筋和薄阻尼层的层状复合材料的开发及其成形性能表征

基本信息

批准号：
262424410
负责人：
Professor Dr.-Ing. Mathias Liewald
金额：
--
依托单位：
Institut für Umformtechnik (IFU)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2014
资助国家：
德国
起止时间：
2013-12-31 至 2015-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/262424410?language=en
关键词：
Development layered composite material sided

项目摘要

In this research proposal an approach for the development of a modern composite multilayer material is presented to save recourses and weight. This combines sound-absorbing properties with form elements of high stiffness and thus opens up new possibilities in order to maximize material utilization. A combination of good damping properties with specifically adjustable material-structure-combination by beads including a flat viewing surface will be enabled for the first time. Preliminary experiments have shown that it is in certain limits possible to form the new material and damping as well as the acoustic radiation behaviour compared to monolithic plates is very promising. In particular the oscillation behavior of stiffened elements is considerably improved, and the edge areas can be left flat, to allow hemming without delamination. As part of the proposed research project, there are thus working areas, such as the characterization of elastoplatic parameters for forming. Stamping operations are analyzed and methods are developed with regard to reduced springback. In addition, the stiffening potential is studied scientifically by different bead sizes and also the supporting effect of the flat cover plate in order to transfer them to a demonstrator component. The result of this research, therefore demonstrates the technological potential and the metal forming basics of such a composite layer consisting of one-sided integrated stiffeners.

在这项研究建议中，提出了一种开发现代复合材料材料的方法，以节省回流和重量。这结合了吸收声音的特性和高刚度的形式元素，因此为了最大程度地利用材料，开辟了新的可能性。良好的阻尼特性与包括平坦观察表面在内的珠子的特定可调材料结构组合的结合将首次启用。初步实验表明，与整体板相比，形成新材料和阻尼以及声学辐射行为在某些限制中非常有前途。特别是，加强元件的振荡行为得到了显着改善，并且边缘区域可以保持平坦，以允许不划分。作为拟议的研究项目的一部分，因此有工作区域，例如用于形成的弹性参数的表征。分析了冲压操作，并开发了减少弹回的方法。此外，通过不同的珠子大小和平面盖板的支撑效应，以科学的方式研究了僵硬的电位，以便将其转移到演示器成分中。因此，这项研究的结果证明了该复合层的技术潜力和金属形成的基础知识，该复合层由单方面的集成加强剂组成。