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SUMMARY:Acoustic evaluation of material parameters\, stresses\, and strain
 s in biological soft solids - Michel Destrade (National University of Irel
 and Galway)
DTSTART:20230801T090000Z
DTEND:20230801T100000Z
UID:TALK203536@talks.cam.ac.uk
DESCRIPTION:This talk discusses two non-destructive evaluation aims that c
 an be achieved with elastic waves travelling in soft materials.First\, we 
 see how tracking the changes in wave speed with stress or strain gives acc
 ess to linear and nonlinear material parameters. These can then be used to
  design biomaterials or to create meaningful Finite Element simulations.Th
 en\, we find that the states of stress and strain existing in a loaded mat
 erial can be accessed directly from wave speed measurements\, without havi
 ng to determine\, or even know\, its material properties. These techniques
  are expected to have important applications in health monitoring of loade
 d structures. Examples include bulk muscles\, and thin membranes such as a
  stretched rubber sheet\, a piece of cling film (~10 &mu\;m thick) and the
  animal skin of a bodhr&aacute\;n\, a traditional Irish drum.
LOCATION:Seminar Room 1\, Newton Institute
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