Marco Miniaci seminar:

 "Bio-inspired hierarchical metamaterials 

May 23 at 10:00 am
Amphitheater of the IEMN - Central Laboratory - Villeneuve d'Ascq

For those who will not be able to attend, you can connect to the link below:

https://univ-lille-fr.zoom.us/j/98972957724?pwd=cmN1VCtWQzlZbTNKT29SNGkvSHpFZz09

Vibration patterns for a hierarchical and a regular metamaterial unit cell

Abstract:

Phononic crystals (PCs) and elastic metamaterials (MMs) are generally defined as periodic structures exhibiting exotic vibrational properties currently unavailable in Nature (frequency band gap, waveguiding, topological protection, etc).
In recent years, PCs and MMs are more and more included as emerging solutions in different fields, from structural health monitoring to sound / vibration insulation, to cite a few.
In this talk, starting from the unconventional assumption that the working principle behind metamaterials is already exploited in Nature, I will present examples of bio-inspired designs of metamaterials with the aim of discussing their potential advantages (and unavoidable limitations) in terms of dynamic / static performance with respect to conventional ones.
I will finally discuss potential fields of application (namely, nondestructive evaluation, waveguiding, sound insulation, etc.).

Summary:

Phononic crystals (PCs) and elastic metamaterials (MMs) are generally defined as periodic structures with exotic vibrational properties currently unavailable in nature (band gap, waveguide, topological protection, etc).
In recent years, PCs and MMs are increasingly being included as emerging solutions in a variety of fields, from structural health monitoring to noise and vibration isolation, to name but a few.
In this talk, based on the unconventional assumption that the operating principle of metamaterials is already exploited in nature, I will present examples of bio-inspired metamaterial designs with the aim of discussing their potential advantages (and inevitable limitations) in terms of dynamic/static performance compared to conventional models.
Finally, I will discuss potential areas of application (i.e. non-destructive evaluation, waveguiding, acoustic insulation, etc.).