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针对可持续且竞争激烈的循环经济的欧洲政策中制定的。最近，在有关欧洲绿色协议的沟通中，欧洲委员会承诺采用一项新的循环经济行动计划，以加速并继续向循环经济过渡。这种承诺在材料科学，生产和开发的新颖方法中得到了很大的反映，并且是由新兴增材制造等技术驱动的。在两个关键方面，新材料技术的发展将在塑造这一急需的绿色过渡方面发挥决定性作用。高级材料的开发，其可制造性在高功能需求与生产链中可持续性的提高之间达到了最佳平衡。将其本身的关注功能重点放在运输，建筑和能源产业的材料上，以及对更好，更便宜和可持续材料的前所未有的需求。但是，维持或进一步提高现有材料的性能和可靠性，包括轻巧的复合材料，金属合金或陶瓷，提出了当前范式的核心挑战。对于许多连接相似或不同材料的应用是必不可少的，而粘合键合是经典联接方法的有吸引力的替代品，导致具有更多功能的新复合材料，以及更好的机械和身体性能。粘结过程和粘合剂在多种工程结构中用于初级和次要结合。但是，对于剥削粘合键的潜力真正有助于可持续工程结构的发展 - 促进预防，再利用和重新利用结构组件的潜力，某些未解决的问题仍然是开放的。该研究项目建议处理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结合的新型实验方法。该项目有多种目标，需要采用跨学科的方法来解决每个目标。主要目标是在粘合键合的框架内利用机械超材料的概念，并为建筑和可调的键线开发解决方案，即“元粘合剂”。 “元粘合剂”概念将通过在粘合剂中实施精心设计的超材料晶格来研究。该研究将跨越几个量表，从材料到结构成分，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粘合线断裂韧性；（ii）失败的特征（从几何到物质失败）将如何受到影响，以及负载转移将如何受到架构键线的影响；（iii）以在多大程度上和在多大程度上进行元粘合键线的功能，以服务上述预防/重复利用和重新利用，以改善结构的可持续性。该奖学金将使申请人能够在机械超材料领域使用和扩展他的知识来处理尚未解决的问题，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结合的新型实验方法。