A multiscale approach for nonlinear hysteretic skin elasticity evaluation by means of PM space modeling
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00304872" target="_blank" >RIV/68407700:21340/16:00304872 - isvavai.cz</a>
Result on the web
<a href="https://ave2016.sciencesconf.org/112044/document" target="_blank" >https://ave2016.sciencesconf.org/112044/document</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
A multiscale approach for nonlinear hysteretic skin elasticity evaluation by means of PM space modeling
Original language description
This paper investigates the use of the Preisach-Mayergoyz (PM) space to characterize the mechanical properties of skin tissue, assess elasticity or damage and localize sources of nonlinearity potentially responsible for skin ageing, in complement to the Time Reversal based Nonlinear Elastic Wave Spectroscopy methods. Hysteresis behaviour coming from the complex loading of porcine skin tissues has been identified with a PM space statistical model, which can be expressed as weight combination of hysterons or hysteretic elasticity units (or memristors). Identifying the PM space probability density within a class of distribution mixtures by means of numerical optimization algorithms simulated annealing, fast simulated annealing and their modifications, the elasticity of porcine skin is evaluated. It is found that optimization techniques with L2 distance and phi-divergence measures induces a PM space with 1000 hysterons distributed along a mixture of two Guyer distributions. Parameters of the distributions and final PM spaces of porcine skin experimentally measured data are presented and analysis of data shows that PM space approach is suggested as a new tool for extracting multi-scale parameters containing information about aging of the skin, based on single units analogue to memristors.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů