H2020Индивидуална стипендия2020–2022

DYN-SEAM · Manipulating and tuning dynamic characteristics of soft electro-active materials: Modelling, simulations and experiments

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2020-08-01 → 2022-07-31
Финансиране от ЕС: 196 591 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Меки електроактивни материали се анализират чрез моделиране и опити, за да се разбере как променят формата и движението си при електрически импулси. Това помага при създаването на по-добри сензори, гъвкава електроника и биомедицински устройства.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Manipulating and tuning dynamic characteristics of soft electro-active materials: Modelling, simulations and experiments

Owing to their unique electromechanical coupling properties, soft electro-active materials (SEAMs) have attracted considerable academic and industrial interest, which is reflected by the following three breakthroughs: (1) A general theoretical framework (nonlinear electro-elasticity theory), able to describe their high nonlinearity and notable electromechanical coupling; (2) Superior rapid response and large deformation under electric stimuli, making SEAMs ideal candidates for broad applications as transducers, actuators, sensors, energy harvesters, biomedical devices and flexible electronics; (3) Significant changes of SEAM dynamic characteristics induced by biasing fields (pre-stretch, internal pressure and electric stimuli), with potential prospects in tuneable resonators and oscillators, waveguides, phononic crystals (PCs) and metamaterials. Intrinsically, the analysis of SEAMs is a geometrically/physically nonlinear and multi-physics coupling problem. Its analytical and even numerical resolutions are very challenging tasks, especially when studying dynamic characteristics. Most of up-to-date works have made contributions to the analysis of their nonlinear static response and quasi-static instabilities. However, a systematic understanding on their linearized and nonlinear dynamic behaviours remains largely elusive and many challenges have yet to be solved before their tremendous potential can be fully harvested in the industry. In this context, the inter-disciplinary DYN-SEAM project aimed at conducting an in-depth and comprehensive study of the effects of key factors (biasing fields, inhomogeneity, fluid-solid interaction, periodic structures) on the linearized and nonlinear dynamic characteristics of SEAMs and explaining the underlying physical and mechanical mechanisms. It integrated new theoretical modelling with computational codes and simulations tools. Eventually it attempted to provide an important guidance for promising industrial and medical applications in ultrasonic nondestructive testing, ultrasound elastography, and design of actuators, tuneable resonators, and smart soft wave devices.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Dr. Bin Wu is a Chinese national, trained in Applied Mechanics and Multi-physics in China, Germany, and Italy. He is applying for a two-year MSCA Fellowship to conduct the DYN-SEAM action at NUI Galway, Ireland.Due to striking advantages such as rapid response and large deformation under electric stimuli, and significant changes of dynamic characteristics induced by biasing fields (pre-stretch, electric stimuli, etc.), soft electro-active materials (SEAMs) have found multiple and practical applications in the real world, including actuators, energy harvesters, biomedical devices, flexible electronics, tunable resonators, and wave devices. However, a systematic understanding of their dynamic behaviours is still lacking, creating a bottleneck to innovation.The action aims at conducting an in-depth investigation of the effects of key factors (inhomogeneity, anisotropy, viscoelasticity, fluid-solid interaction, periodic structures) on the dynamic characteristics of SEAMs under biasing fields, with special attention in exploring promising applications, such as ultrasonic non-destructive testing and ultrasound elastography, smart design of self-sensing actuators, tunable resonators, and soft intelligent wave devices.The action mixes ad-hoc theoretical modelling with experimental tests and numerical simulations, by taking full advantage of the host and partner institutions' expertise and facilities, and experience in scientific management, intellectual property, etc. Secondments include a period at an acoustics laboratory (academic) and another at an enhanced hearing company (non-academic).This international, inter-sectoral and inter-disciplinary action will enable novel technological advances in material/life science and engineering—contributing to Europe 2020 'Innovation Union' initiative and European excellence. It will allow the researcher to grow as a world-class leader for these emerging fields, with a unique blend of expertise and hands-on experience.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITY OF GALWAY · GalwayКоординаторИрландия