The extreme bulk-modulus contrast of bubbly soft matter for underwater acoustic modulation

Meng, Zixiong; Wang, Linjuan; Wang, Jianxiang

doi:10.1016/j.eml.2023.102023

Extreme Mechanics Letters

2023

DOI: 10.1016/j.eml.2023.102023

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The extreme bulk-modulus contrast of bubbly soft matter for underwater acoustic modulation

Zixiong Meng

Linjuan Wang

Jianxiang Wang

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2024

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Cited by 2 publications

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Ultra‐broadband sound absorption characteristics in underwater ultra‐thin metamaterial with three layer bubbles

Gao,

Huang,

Pan

2024

Engineering Reports

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The interest of this article is to obtain the underwater broadband sound absorption characteristics by filling three layers of bubbles in Polydimethylsiloxane polymer (PDMS). In this underwater ultra‐thin metamaterial, three‐layer bubbles are arranged from small to large with the same radius center. The finite element analysis (FEA) method and transfer matrix (TM) method have good consistency in calculating the sound absorption coefficient of this metamaterial. The results reveals that sub‐wavelength metamaterial properties can be achieved below 6.4 MHz. Bubble coupling critical viscosity, waning coupling between layers, waveform transformation, and increasing scattering (reflection) waves all affect broadband sound absorption characteristics. The position and size of three bubbles are discussed, and design summary could be potentially in underwater ultrasound filter devices and medical ultrasound field.

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Ultra‐broadband sound absorption characteristics in underwater ultra‐thin metamaterial with three layer bubbles

Gao,

Huang,

Pan

2024

Engineering Reports

View full text Add to dashboard Cite

show abstract

A review of hydroacoustic absorbing materials under hydrostatic pressure

Wei,

Zhao,

Wang

et al. 2024

Chin. Sci. Bull.

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The extreme bulk-modulus contrast of bubbly soft matter for underwater acoustic modulation

Cited by 2 publications

References 61 publications

Ultra‐broadband sound absorption characteristics in underwater ultra‐thin metamaterial with three layer bubbles

Ultra‐broadband sound absorption characteristics in underwater ultra‐thin metamaterial with three layer bubbles

A review of hydroacoustic absorbing materials under hydrostatic pressure

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