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arXiv · 2211.05863

Buckling of lipidic ultrasound contrast agents under quasi-static load

Georges Chabouh·Benjamin van Elburg·Michel Versluis·Tim Segers·Catherine Quilliet·Gwennou Coupier
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Abstract

Collapse of lipidic ultrasound contrast agents under high-frequency compressive load has been historically interpreted by the vanishing of surface tension. By contrast, buckling of elastic shells is known to occur when costly compressible stress is released through bending. Through quasi-static compression experiments on lipidic shells, we analyze the buckling events in the framework of classical elastic buckling theory and deduce the mechanical characteristics of these shells. They are then compared to that obtained through acoustic characterization.

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Georges Chabouh, Benjamin van Elburg, Michel Versluis, Tim Segers, Catherine Quilliet, Gwennou Coupier. 2022-11-10. Buckling of lipidic ultrasound contrast agents under quasi-static load. https://doi.org/10.1098/rsta.2022.0025

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