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Title: ExaConstit

Abstract

The principal purpose of this code is to determine bulk constitutive properties and response of polycrystalline materials. This is a nonlinear quasi-static, implicit solid mechanics code built on the MFEM library based on an updated Lagrangian formulation (velocity based). Within this context, there is flexibility in the type of constitutive model employed, with the code allowing for various UMATs to be interfaced within the code framework or for the use of the ExaCMech library. Using crystal-mechanics-based constitutive models, the code can be used, for example, to compute homogenized response behavior over a polycrystal.

Developers:
 [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Release Date:
Project Type:
Open Source, Publicly Available Repository
Software Type:
Scientific
Version:
0.2.0
Licenses:
BSD 3-clause "New" or "Revised" License
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)

Primary Award/Contract Number:
AC52-07NA27344
Code ID:
31691
Site Accession Number:
993965
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Origin:
United States

Citation Formats

Carson, Robert A, Wopschall, Steven R, Bramwell, Jamie A, and USDOE National Nuclear Security Administration. ExaConstit. Computer software. https://www.osti.gov//servlets/purl/1571640. Vers. 0.2.0. USDOE National Nuclear Security Administration (NNSA). 3 Aug. 2019. Web. doi:10.11578/dc.20191024.2.
Carson, Robert A, Wopschall, Steven R, Bramwell, Jamie A, & USDOE National Nuclear Security Administration. (2019, August 3). ExaConstit (Version 0.2.0) [Computer software]. https://www.osti.gov//servlets/purl/1571640. doi:10.11578/dc.20191024.2.
Carson, Robert A, Wopschall, Steven R, Bramwell, Jamie A, and USDOE National Nuclear Security Administration. ExaConstit. Computer software. Version 0.2.0. August 3, 2019. https://www.osti.gov//servlets/purl/1571640. doi:10.11578/dc.20191024.2.
@misc{osti_1571640,
title = {ExaConstit, Version 0.2.0},
author = {Carson, Robert A and Wopschall, Steven R and Bramwell, Jamie A and USDOE National Nuclear Security Administration},
abstractNote = {The principal purpose of this code is to determine bulk constitutive properties and response of polycrystalline materials. This is a nonlinear quasi-static, implicit solid mechanics code built on the MFEM library based on an updated Lagrangian formulation (velocity based). Within this context, there is flexibility in the type of constitutive model employed, with the code allowing for various UMATs to be interfaced within the code framework or for the use of the ExaCMech library. Using crystal-mechanics-based constitutive models, the code can be used, for example, to compute homogenized response behavior over a polycrystal.},
url = {https://www.osti.gov//servlets/purl/1571640},
doi = {10.11578/dc.20191024.2},
year = {2019},
month = {8},
note =
}

Software:
Publicly Accessible Repository
https://github.com/LLNL/ExaConstit

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