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Meta-material adhesives for improved performance and functionalisation of bondlines

超材料粘合剂可提高粘合层的性能和功能化

基本信息

批准号：
EP/W019450/1
负责人：
Marcelo Dias
金额：
$ 136.67万
依托单位：
University of Edinburgh
依托单位国家：
英国
项目类别：
Fellowship
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FW019450%2F1
关键词：
Meta material adhesives improved performance

项目摘要

Sustainable development goals are formulated within European policies aiming at a sustainable, and yet competitive, circular economy. Most recently, in the Communication on the European Green Deal, the European Commission committed to the adoption of a new Circular Economy Action Plan to accelerate and continue the transition towards a circular economy. This commitment is heavily reflected in novel approaches to materials science, production, and development, and it is driven by technologies such as emerging additive manufacturing. There are two critical fronts in which the development of new materials' technologies will play a decisive role in shaping this much needed green transition; the development of advanced materials whose manufacturability strikes an optimal balance between high demands for functionality, and the improvement of sustainability in the production chain. Focus on the functionality in its own right, e.g., in materials for the transport, construction and energy generation industries, together with unprecedented need for better, cheaper, and sustainable materials is timely. However, maintaining or further increasing the performance and reliability of existing materials, including lightweight composite materials, metal alloys or ceramics, presents challenges at the heart of this current paradigm. For many applications joining similar or dissimilar materials is indispensable, while adhesive bonding is an attractive alternative to classical joining methods, leading to new composites with more functions, and better mechanical and physical performance. Bonding processes and adhesives are used in a wide range of engineering structures for primary and secondary bonding. However, certain unresolved questions remain open regarding the exploitation of the potential of adhesive bondlines to truly contribute to the development of sustainable engineering structures-those promoting prevention, reuse and repurposing of structural components. This research project proposes to deal with these unresolved questions and to recommend innovative material and structural concepts, new modelling techniques, and novel experimental methods for sustainable structural bonding. The project has multiple objectives, necessitating an interdisciplinary approach for addressing each one of them. The main goal is to exploit the concept of Mechanical Metamaterials within the framework of adhesive bonding and to develop solutions for architected and tuneable bondlines, namely "meta-adhesives". The "meta-adhesive" concept will be investigated by implementing well designed metamaterial lattices into the adhesive bulk. The investigation will span in several scale levels, from the material to the structural component and will respond to specific basic research questions such as: (i) whether the metamaterial scaling properties affect the bondline fracture toughness in a predictable manner; (ii) how the features of failure (from geometrical to material failure) will be affected and how load transfer will be influenced by having architected bondlines; (iii) in which manner and to what extent can the meta-adhesive bondline be functionalised in order to serve the aforementioned prevention/reuse and repurposing for improved sustainability in structures. This fellowship will allow the applicant to use and expand his knowledge in the field of Mechanical Metamaterials to deal with unresolved questions and to recommend innovative material and structural concepts, new modelling techniques, and novel experimental methods for sustainable structural bonding.

可持续发展目标是在欧洲政策范围内制定的，旨在实现可持续且具有竞争力的循环经济。最近，在关于欧洲绿色交易的通信中，欧盟委员会承诺通过一项新的循环经济行动计划，以加速和继续向循环经济过渡。这一承诺在很大程度上反映在材料科学、生产和开发的新方法中，并受到新兴增材制造等技术的推动。新材料技术的发展将在塑造这一急需的绿色转型中发挥决定性作用的两个关键方面：先进材料的开发，其可制造性在高功能性需求和生产链可持续性的改善之间取得了最佳平衡。专注于其自身的功能，例如，在运输、建筑和能源生产行业的材料中，对更好、更便宜和可持续材料的需求是前所未有的。然而，保持或进一步提高现有材料（包括轻质复合材料、金属合金或陶瓷）的性能和可靠性在当前范例的核心提出了挑战。对于许多应用来说，连接相似或不相似的材料是必不可少的，而粘合剂连接是经典连接方法的一种有吸引力的替代方法，导致具有更多功能和更好的机械和物理性能的新复合材料。粘合工艺和粘合剂广泛用于工程结构的一次和二次粘合。然而，某些悬而未决的问题仍然开放的开发潜力的粘合剂胶层，真正有助于可持续工程结构的发展，促进预防，再利用和再利用的结构部件。该研究项目旨在解决这些尚未解决的问题，并推荐创新的材料和结构概念，新的建模技术以及可持续结构粘合的新实验方法。该项目有多个目标，需要采取跨学科的方法来解决其中的每一个问题。主要目标是在粘合剂粘合的框架内利用机械超材料的概念，并开发用于建筑和可调粘合线的解决方案，即“超粘合剂”。将通过将精心设计的超材料晶格实施到粘合剂块中来研究“超粘合剂”概念。该调查将跨越从材料到结构部件的多个尺度水平，并将回答特定的基础研究问题，例如：（i）超材料缩放特性是否以可预测的方式影响胶层断裂韧性;（ii）如何破坏的特征（从几何到材料失效）将受到影响，以及具有结构化胶层将如何影响载荷传递;（iii）超粘合剂胶层可以以何种方式和在何种程度上被功能化，以用于上述预防/再利用和再利用，以改善结构的可持续性。该奖学金将允许申请人使用和扩展他在机械超材料领域的知识，以处理未解决的问题，并推荐创新的材料和结构概念，新的建模技术，以及可持续结构粘合的新实验方法。