2025
article
OpenAlex
Seyed Danial Ghasimi, Jason Rabinovitch, Luis Chacon, Savio J. Poovathingal et autres
The broadcloth material used in parachute manufacturing is generally a thin, woven, permeable textile. The small length scales of fibers, pores, and gaps in fabric are challenging to spatially resolve in a full-scale parachute simulation. In this work, simulations are performed using …
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Accès ouvert
2025
article
OpenAlex
Collin Foster, Sreevishnu Oruganti, Francesco Panerai
The microstructural evolution of superlight ablators during pyrolysis was investigated using in situ X-ray micro-computed tomography and generative adversarial networks. Superlight ablators, a type of syntactic foam thermal protection materials, are commonly employed in the backshells of planetary entry probes. Synchrotron X-rays …
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2024
conference-paper
OpenAlex
Seyed Danial Ghasimi, Jason Rabinovitch, Luis Chacon, Savio J. Poovathingal et autres
The broadcloth material used in parachute manufacturing is generally a thin, woven, permeable textile. The relatively small length scales of the pores and gaps inside the fabric make it challenging to resolve these features in a full-scale parachute simulation. Simulations are performed …
us
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2024
conference-paper
OpenAlex
Collin Foster, Cutler Phillippe, Francesco Panerai
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Accès ouvert
2023
article
OpenAlex
Collin Foster
Abstract not provided.
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Accès ouvert
2023
review
OpenAlex
Jack Todd Lang, Devashish Kulkarni, Collin Foster, Ying Huang et autres
X-ray computed tomography (CT) is a nondestructive three-dimensional (3D) imaging technique used for studying morphological properties of porous and nonporous materials. In the field of electrocatalysis, X-ray CT is mainly used to quantify the morphology of electrodes and extract information such as …
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Accès ouvert
2023
article
OpenAlex
Collin Foster, Lincoln Collins, Francesco Panerai, Scott Alan Roberts
Mesoscale simulations of woven composites using parameterized analytical geometries offer a way to connect constituent material properties and their geometric arrangement to effective composite properties and performance. However, the reality of as-manufactured materials often differs from the ideal, both in terms of …
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2023
conference-paper
OpenAlex
Collin Foster, Sreevishnu Oruganti, Francesco Panerai
View Video Presentation: https://doi.org/10.2514/6.2023-3616.vid Quantitative microstructural analysis of Room Temperature Vulcanized (RTV) silicone pyrolysis at high temperatures is presented. RTV is used as a bonding agent in multiple industries, particularly filling gaps in ablative tiles for hypersonic (re-)entry vehicles and fire prevention. …
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Accès ouvert
2023
article
OpenAlex
Collin Foster, Sreevishnu Oruganti, Francesco Panerai
• In situ μ -CT imaging of RTV pyrolysis conducted for multiple heating rates up to 1000°C at synchrotron facility. • Porosity and pore size quantified for RTV during pyrolysis . • Volumetric shrinking and swelling measured on solid RTV in situ. …
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Accès ouvert
2023
preprint
OpenAlex
Collin Foster, Lincoln Collins, Francesco Panerai, Scott Alan Roberts
Mesoscale simulations of woven composites using parameterized analytical geometries offer a way to connect constituent material properties and their geometric arrangement to effective composite properties and performance. However, the reality of as-manufactured materials often differs from the ideal, both in terms of …
Accès ouvert
2023
preprint
OpenAlex
Collin Foster, Sreevishnu Oruganti, Francesco Panerai
Quantitative microstructural analysis of Room Temperature Vulcanized (RTV) silicone pyrolysis at high temperatures is presented. RTV is used as a bonding agent in multiple industries, particularly filling gaps in ablative tiles for hypersonic (re-)entry vehicles and fire prevention. Decomposition of RTV is …
Accès ouvert
2022
conference-paper
OpenAlex
Lincoln Collins, Scott Alan Roberts, Martin Di Stefano, Peter Creveling et autres
This paper describes objective technical results and analysis.Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S.
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