Garboczi, E.
, Rosa, I.
, Lepech, M.
, Roedel, H.
and Loftus, D.
(2016),
Three-Phase Statistically Equivalent Periodic Unit Cells for Protein-Bound Soils, ASCE Earth and Space 2016, Orlando, FL, US
(Accessed December 9, 2024)
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Three-Phase Statistically Equivalent Periodic Unit Cells for Protein-Bound Soils
Published
Author(s)
, Isamar Rosa, Michael Lepech, Henning Roedel, David Loftus
Abstract
This work focuses on a novel class of composites that can be produced extraterrestrially, or in situ, by desiccating a mixture of soil, water, and protein binder to create a strong, versatile material. To date, experimental tests of mechanical properties have shown significant variability among samples. For this paper, the focus is on the framework for the creation of Statistically Equivalent Periodic Unit Cells (SEPUC) to stochastically model protein-bound composites for the purpose of creating finite element models that provide insights into experimental results. Model inputs include the soil granulometry and volume fractions of the phases. After a virtual image is created, it is then statistically compared to real images obtained through micro-CT scanning and a simple genetic algorithm is used to minimize the statistical difference between the virtual model and the real image.Proceedings Title
ASCE Earth and Space 2016
Conference Dates
April 11-15, 2016
Conference Location
Orlando, FL, US
Pub Type
Conferences
Keywords
lunar soil, composites, protein binder, bovine serum albumin, NASA
Citation
Issues
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Created May 25, 2016, Updated July 25, 2024