Publication Date:
2019-07-13
Description:
The ablative materials used in thermal protection systems (TPS) undergo oxidation during atmospheric entry which leads to an in-depth change in both permeability and porosity. These properties have a significant affect on heat transfer in a TPS during entry. X-ray micro-tomography has provided 3D images capturing the micro-structure of TPS materials. In this study, we use micro-tomography based simulations to create high-fidelity models relating permeability to porosity during oxidation of FiberForm, the carbon fiber preform of the Phenolic Impregnated Carbon Ablator (PICA) often used as a TPS material. The goal of this study is to inform full-scale models and reduce uncertainty in TPS modeling.
Keywords:
Structural Mechanics; Composite Materials
Type:
ARC-E-DAA-TN46701
,
Ablation Workshop; Aug 30, 2017 - Aug 31, 2017; Bozeman, MT; United States
Format:
application/pdf
