An orthotropic material model is implemented in a three-dimensional material response code, and numerically studied for charring ablative material. Model comparison is performed using an iso-Q sample geometry. The comparison is presented using pyrolysis gas streamlines and time series of temperature at selected virtual thermocouples. Results show that orthotropic permeability affects both pyrolysis gas flow and thermal response, but orthotropic thermal conductivity essentially changes the thermal performance of the material. The effect of orthotropic properties may have practical use such that the material performance can be manipulated by altering the angle of orthotropic orientation.

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Conference Proceeding

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Published in the Proceedings of the 11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, Paper 2014-2121, p. 1-13.

Copyright © 2014 by Haoyue Weng and Alexandre Martin.

The copyright holders have granted the permission for posting the article here.

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