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Stress distribution in human artery based on several types of SEDF

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F06%3A02123378" target="_blank" >RIV/68407700:21220/06:02123378 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Stress distribution in human artery based on several types of SEDF

  • Original language description

    Two material models of an arterial wall based on hyperelastic approach are compared within a solution of a boundary value problem for thick&#8211;walled tube. Thick&#8211;walled tube, which is the computational model used here, was loaded by internal pressure p = 16 kPa and axial pre&#8211;stretches &#61548;z = 1.15, 1.3, 1.45. An influence of residual strains was included. It is shown that purely phenomenological model revealed circumferential Cauchy stress distribution in the range of supposed physiological values. Structural model based on a fiber-reinforcement is significantly more compliant than phenomenological one. Moreover, the residual strains are necessary in the structural model to obtain physiological values of circumferential stress. An influence of an helix angle, which is a structural parameter, on the stress distribution was determined.

  • Czech name

    Název česky Rozložení napjatosti ve stěně lidské tepny založené na různých typech SEDF

  • Czech description

    Dva materiálové modely, ortotropní homogenní kontinuum a vlákny vystužený kompozit, založené na předpokladu hyperelasticity a nestlačitelnosti tepenné stěny jsou spolu porovnávány z hlediska rozložení napjatosti. Je použit analytický výpočtový model tlustostěnné nádoby. Zbytková deformace v obvodovém směru je započítána. Vliv úhlu stoupání výstužných vláken v kompozitním materiálu na obvodové napětí je určen.

Classification

  • Type

    A - Audiovisual production

  • CEP classification

    BJ - Thermodynamics

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

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

Data specific for result type

  • ISBN

    80-86246-27-2

  • Place of publication

    Praha

  • Publisher/client name

  • Version

  • Carrier ID

    neuvedeno