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Extreme Mechanics of Metamaterials: From ideal to realistic conditions

Project information

Grant agreement ID: 852587

Status

Ongoing project

  • Start date

    1 January 2020

  • End date

    31 December 2024

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 499 478

  • EU contribution

    € 1 499 478

Hosted by:

UNIVERSITEIT VAN AMSTERDAM

Netherlands

Objective

Manipulating physical signals such as light, sound, heat or motion is a vital challenge in multiple areas of science. Due to recent advances in digital fabrication techniques, the last years have seen a revolution in artificial periodic composites with on-demand electromagnetic, acoustic, thermal and mechanical properties. These so-called metamaterials become particularly interesting in mechanics, where geometrical effects and nonlinearities are much stronger than in any other physical field. Over the past 5 years, the community -including myself- has discovered a plethora of “extreme” functionalities, e.g. mechanical metamaterials that are very light, stiff and strong at the same time, that have negative elastic moduli or that exhibit programmable shape-changes. Importantly, such advanced properties are typically designed through a purely geometrical framework. Yet, this impressive progress is so far confined to idealized settings, namely for homogeneous boundary conditions, imperfection-free structures and purely elastic constituents under quasi-static driving. This traditional focus severely limits our understanding of metamaterials and their potential for applications. Here, I propose to uncover the extreme mechanics of metamaterials under realistic conditions. Specifically, by generalizing the geometrical framework to allow for deviations from the ideal limit, and by validating it through a wide array of experimental and numerical techniques, I will establish: 1) the effect of inhomogeneous boundary conditions; 2) the sensitivity to geometric imperfections; 3) the role of dissipation. Just as the fundamental understanding of defects and dislocations revolutionized materials science, by exploring perturbations in metamaterials I will push the frontiers of solids mechanics and open up avenues for the design of robust advanced functionalities tailored to realistic complex scenarios, from prosthetics to aerospace.

Host institution

UNIVERSITEIT VAN AMSTERDAM

Address

Spui 21
1012wx Amsterdam

Netherlands

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 499 478

Beneficiaries (1)

UNIVERSITEIT VAN AMSTERDAM

Netherlands

EU Contribution

€ 1 499 478

Project information

Grant agreement ID: 852587

Status

Ongoing project

  • Start date

    1 January 2020

  • End date

    31 December 2024

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 499 478

  • EU contribution

    € 1 499 478

Hosted by:

UNIVERSITEIT VAN AMSTERDAM

Netherlands