CVEN 5899 Internship report

Technical Report · Mon Aug 08 04:00:00 EDT 2022

DOI:https://doi.org/10.2172/1880464· OSTI ID:1880464

Lee, Yu-Hsuan ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The internship is under the project of Center for Space and Earth Science student fellow program of Los Alamos National Laboratory (LANL). The topic of the project is grain-scale prediction of hypervelocity projectile penetration into terrestrial and extraterrestrial granular materials, which is also my PhD research topic. In this research, we would like to use discrete element method (DEM) to simulate the hyper-speed penetration into granular materials and compare with experiment results. The experiment is done by the Proton Radiography (pRad) team of LANL. In the experiment, a jet traveled through the sand with velocity of 4 km/s (fig.1). Our goal is to develop the large deformation constitutive model by the stress and strain upscaling, study the fluid (air) behavior and particle fracture during the hyperspeed penetration.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); LDRD
• DOE Contract Number: 89233218CNA000001
• OSTI ID: 1880464
• Report Number(s): LA-UR-22-28236
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE