Monday  |  Lakeshore A  |  11:00 AM–11:20 AM

#19783, Quasi-Static and Dynamic High-Strain Properties of Frozen Soil for Data-Driven Model

We propose quasi-static and high-strain experiments in this work to elucidate frozen soil’s failure behavior and its constituents’ effect. We propose an experiment to establish the constitutive behavior of frozen soils as a function of strain rate under confined and unconfined conditions. In addition, the proposed experiment focuses on generating quantitative full-field deformation and strain fields for a data-driven model. The high-strain experiment will focus on extracting stress-strain relations at different strain rates and temperatures, studying damage evolution during loading at the microstructure level, and generating full-field data for the proposed data-driven model. The effect of temperature and strain rate on the damage mechanism of frozen soil will be discussed. We will explore different failure mechanisms, including freezing-induced anisotropy. The experimental procedure, challenges, and measures taken will be presented

Olivia Gilbert   Columbia University
Yohannes Birhan   Columbia University
Mian Xiao   Columbia University
Addis Kidane   Columbia University
WaiChing Sun   Columbia University