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CRYSTAL PLASTICITY OF PENTAERYTHRITOL TETRANITRATE (PETN)

<p dir="ltr">We investigate the crystal plasticity and shock response of single crystal and polycrystalline pentaerythritol tetranitrate (PETN) using mesoscale finite element simulations. The model includes the Mie-Grüneisen Equation of State and a single crystal plasticity model. Simulations with single crystals with different orientations are tested using our plasticity model under shock compression to explore shear stress and slip. Parameters regarding the Mie-Grüneisen Equation of State are also verified in various orientations from 0.50 to 1.75 km/s. A polycrystalline PETN sample with varying grain sizes and orientations are subjected to shock loading with impact velocities ranging from 0.25 to 0.75 km/s. We study how differences in shock orientation affect slip and stress in PETN at different shock strengths.</p>

  1. 10.25394/pgs.25674564.v1
Identiferoai:union.ndltd.org:purdue.edu/oai:figshare.com:article/25674564
Date24 April 2024
CreatorsJennifer Oai Lai (17677422)
Source SetsPurdue University
Detected LanguageEnglish
TypeText, Thesis
RightsCC BY 4.0
Relationhttps://figshare.com/articles/thesis/CRYSTAL_PLASTICITY_OF_PENTAERYTHRITOL_TETRANITRATE_PETN_/25674564

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