Acoustic evaluation of material parameters, stresses, and strains in biological soft solids
- đ¤ Speaker: Michel Destrade (National University of Ireland Galway)
- đ Date & Time: Tuesday 01 August 2023, 10:00 - 11:00
- đ Venue: Seminar Room 1, Newton Institute
Abstract
This talk discusses two non-destructive evaluation aims that can be achieved with elastic waves travelling in soft materials.First, we see how tracking the changes in wave speed with stress or strain gives access to linear and nonlinear material parameters. These can then be used to design biomaterials or to create meaningful Finite Element simulations.Then, we find that the states of stress and strain existing in a loaded material can be accessed directly from wave speed measurements, without having to determine, or even know, its material properties. These techniques are expected to have important applications in health monitoring of loaded structures. Examples include bulk muscles, and thin membranes such as a stretched rubber sheet, a piece of cling film (~10 μm thick) and the animal skin of a bodhrán, a traditional Irish drum.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Michel Destrade (National University of Ireland Galway)
Tuesday 01 August 2023, 10:00-11:00