Details

Autor(en) / Beteiligte

• Zhou, Linyun
• Wan, Shui

Titel

Rayleigh waves isolation based on metamaterials surface

Ist Teil von

• Mechanics of advanced materials and structures, 2023-11, Vol.30 (21), p.4361-4371

Ort / Verlag

Abingdon: Taylor & Francis

Erscheinungsjahr

2023

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• Elastic metamaterials (EMMs) can attenuate surface Rayleigh waves effectively, However, it still hard to put EMMs in practical engineering applications. To overcome this limitation, specific combinations of effective parameters for Rayleigh waves isolation have been determined based on propagation behavior of Rayleigh waves in the semi-infinite EMM. Then, unit cell with negative hybrid bands has been designed to satisfy the requirements of effective parameters. Finally, a new type of metamaterial surface (MMS) was proposed to isolate Rayleigh waves, numerical results show that the peak value of acceleration on surface with proposed MMS can be decreased by 97.2% under seismic wave.