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Micro-scale Artificial Weave Generation Capabilities for Thermal Protection System Material ModelingThermal Protection System (TPS) modeling requires accurate representation and prediction of the thermomechanical behavior of ablative materials. State-of-the-art TPS materials such as Phenolic Impregnated Carbon Ablator (PICA) have a proven flight record and demonstrate exceptional capabilities for handling extreme aerothermal heating conditions. The constant push for lightweight materials that are flexible in their design and performance, and hence allow for a wide range of mission profiles, has led NASA over the past years to develop its Heatshield for Extreme Entry Environment Technology (HEEET). HEEET is based primarily on a dual layer woven carbon fiber architecture and the technology has successfully been tested in arc-jet facilities. These recent developments have sparked interest in the accurate micro-scale modeling of composite weave architectures, to predict the structural response of macro-scale heatshields upon atmospheric entry. This effort can be extended to incorporate in-depth failure mechanics analyses as a result of local thermal gradients or high-velocity particle impact.
Document ID
20200000319
Acquisition Source
Ames Research Center
Document Type
Poster
Authors
Visser, Sander J. (Science and Technology Corp. Moffett Field, CA, United States)
King, Robert J. (Mori Associates, Inc. Moffett Field, CA, United States)
Thornton, John M. (Science and Technology Corp. Moffett Field, CA, United States)
Brock, Joseph M. (Analytical Mechanics Associates, Inc. Moffett Field, CA, United States)
Mansour, Nagi N. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
January 16, 2020
Publication Date
September 16, 2019
Subject Category
Aerodynamics
Report/Patent Number
ARC-E-DAA-TN73345
Meeting Information
Meeting: Ablation Workshop
Location: Minneapolis, MN
Country: United States
Start Date: September 16, 2019
End Date: September 17, 2019
Sponsors: Kentucky Univ.
Funding Number(s)
CONTRACT_GRANT: NNA16BD60C
CONTRACT_GRANT: NNA15BB15C
CONTRACT_GRANT: NNJ16JA52B
Distribution Limits
Public
Copyright
Public Use Permitted.

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