EFFECTIVE THERMAL CONDUCTIVITY OF CARBON-CARBON PLAIN WAVE TEXTILE COMPOSITES
Abstract eng: An efficient approach to the evaluation of effective thermal conductivity of carbon-carbon (C/C) plain weave textile composites using the Mori-Tanaka (MT) 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. 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 (PUC). 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.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Brno
Conference Title:
Conference Title:
Engineering Mechanics 2008
Conference Venue:
Svratka (CZ)
Conference Dates:
2008-05-12 / 2008-05-15
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-11-13, last modified 2014-11-18