About: Two Step Homogenization of Effective Thermal Conductivity for Macroscopically Orthotropic C/C composites     Goto   Sponge   Distinct   Permalink

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Description
  • Uhlík=uhlík kompozity patří do významné skupiny vysoko-teplotních materiálových systémů. Jejich výjimečná teplotní stabilita a odolnost je předurčuje k využití v mnoha průmyslových odvětvích. Z těchto důvodů je v příspěvku představena homogenizační metoda Mori-Tanaka pro určení efektivní tepelné vodivosti a to jak na mikro-, tak na meso-úrovni. (cs)
  • An efficient approach to the evaluation of effective thermal conductivity of carbon-carbon (C/C) plain weave textile composites using the Mori-Tanaka method is presented. The method proves its potential even if applied to real orthotropic material systems with various types of imperfections including the non-uniform waviness of the fibre-tow paths. These are typically introduced in terms of histograms of the distribution of inclination angles. Uncertainties linked to other geometrical parameters are mostly reflected in the derivation of an optimal shape of the equivalent ellipsoidal inclusion using a family of ideal periodic unit cells. Evaluation of the effective properties in the absence of pores is presented first. Ellipsoidal pores are then introduced in the second step into a new homogenized matrix to account for the presence of large vacuoles in the composite. Several examples are presented to demonstrate this approach.
  • An efficient approach to the evaluation of effective thermal conductivity of carbon-carbon (C/C) plain weave textile composites using the Mori-Tanaka method is presented. The method proves its potential even if applied to real orthotropic material systems with various types of imperfections including the non-uniform waviness of the fibre-tow paths. These are typically introduced in terms of histograms of the distribution of inclination angles. Uncertainties linked to other geometrical parameters are mostly reflected in the derivation of an optimal shape of the equivalent ellipsoidal inclusion using a family of ideal periodic unit cells. Evaluation of the effective properties in the absence of pores is presented first. Ellipsoidal pores are then introduced in the second step into a new homogenized matrix to account for the presence of large vacuoles in the composite. Several examples are presented to demonstrate this approach. (en)
Title
  • Two Step Homogenization of Effective Thermal Conductivity for Macroscopically Orthotropic C/C composites
  • Two Step Homogenization of Effective Thermal Conductivity for Macroscopically Orthotropic C/C composites (en)
  • Dvouúrovňová homogenizace effektivní tepelné vodivosti makroskopicky ortotropního C/C kompozitu (cs)
skos:prefLabel
  • Two Step Homogenization of Effective Thermal Conductivity for Macroscopically Orthotropic C/C composites
  • Two Step Homogenization of Effective Thermal Conductivity for Macroscopically Orthotropic C/C composites (en)
  • Dvouúrovňová homogenizace effektivní tepelné vodivosti makroskopicky ortotropního C/C kompozitu (cs)
skos:notation
  • RIV/68407700:21110/08:01152897!RIV09-MSM-21110___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA106/07/1244), Z(MSM6840770003)
http://linked.open...iv/cisloPeriodika
  • 14
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 400975
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21110/08:01152897
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Carbon-carbon plain weave composites; Mori-Tanaka method; Orthotropic material (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [8BD98544E4FB]
http://linked.open...i/riv/nazevZdroje
  • Bulletin of Applied Mechanics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 4
http://linked.open...iv/tvurceVysledku
  • Sýkora, Jan
  • Vorel, Jan
  • Šejnoha, Michal
http://linked.open...n/vavai/riv/zamer
issn
  • 1801-1217
number of pages
http://localhost/t...ganizacniJednotka
  • 21110
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