A multiscale approach for nonlinear hysteretic skin elasticity evaluation by means of PM space modeling

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

A multiscale approach for nonlinear hysteretic skin elasticity evaluation by means of PM space modeling

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

A multiscale approach for nonlinear hysteretic skin elasticity evaluation by means of PM space modeling

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10307 - Acoustics

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů