Coordination Funds

协调基金

• 批准号: 434189880
• 负责人: Professor Dr.-Ing. Michael Sinapius
• 金额: --
• 依托单位: Institut für Mechanik und Adaptronik
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/434189880?language=en
• 关键词: Coordination; Funds

Structural Health Monitoring (SHM) in thin-walled lightweight structures using guided ultrasonic waves (GUW) is the subject of intensive international research. After the detection of damage with lamb waves in isotropic, homogeneous materials such as aluminium was first investigated and published in numerous publications, international groups of researchers addressed wave propagation and wave interaction with damage in anisotropic but still homogeneous materials trough thickness such as fibre composites. A broad published knowledge base also exists in this field. However, the wave propagation in laminates of anisotropic materials and strong inhomogeneity in the thickness direction of thin-walled components is completely unexplored and unexplained. Fibre-metal laminates are a typical representative of this class of materials.The aim of the Research Unit FOR3022 is to gain a profound understanding of an integrated Structural Health Monitoring (SHM) in Fibre Metal Laminates (FML) using guided ultrasonic waves (GUW) over the next 6 years. This requires an integral view on the physical phenomena of wave propagation even under complex environmental conditions, their interaction with hidden damage, recording of these interactions using micro-technical sensors at the location of event, and a signal processing for full damage diagnostics. The findings will be useful for the consideration and comprehensive understanding of wave propagation in all layered material systems made from components of large impedance differences.

使用引导超声波（GUW）的薄壁轻量级结构（GUW）中的结构健康监测（SHM）是强化国际研究的主题。在各向同性的羔羊波发现损坏后，首先研究并发表了诸如铝等均质材料，并发表在众多出版物中，国际研究人员群体解决了波浪传播和波浪相互作用与各向异性但仍然均匀的材料的损害相互作用，例如纤维复合材料，例如纤维复合材料。该领域也存在广泛的知识基础。然而，在薄壁组件的厚度方向上层压材料的层压板的波传播是完全没有探索和无法解释的。纤维金属层压板是这类材料的典型代表。研究单位FOR3022的目的是在未来6年内使用带导的超声波（GUW）对纤维金属层压板（FML）中的综合结构健康监测（SHM）深入了解。这也需要对波浪传播的物理现象的整体视图，即使在复杂的环境条件下，它们与隐藏损坏的相互作用，在事件位置进行的微技术传感器记录这些相互作用，以及用于全面损害诊断的信号处理。这些发现将有助于考虑和全面理解由大型阻抗差异组成的所有分层材料系统中的波传播。