1213 Computational Constitutive Modeling

William Scherzinger, Sandia National Laboratories
Richard Regueiro, University of Colorado
H. Jerry Qi, Georgia Institute of Technology
Darby Jon Luscher, Los Alamos National Laboratory
H. Eliot Fang, Sandia National Laboratories
Throughout industry, the national labs, and academia, there is an increasing reliance on complex, large, and high-fidelity simulations for both design and analysis.  Such capabilities are enabled by increasing access to and capabilities of high-performance computing and associated analysis codes. The fidelity of these simulations often depends on the accuracy of material models used in the analysis.  Countless material models have been proposed depending on the material that is used and the environment that is analyzed. Models that incorporate elastic, thermoelastic, elastic-plastic, viscoplastic, viscoelastic, equations of state, anisotropy, microstructure effects, and/or large deformations are just a few examples of the many options available for engineering analysis.
Physically realistic material models are necessary for true-to-life analyses where numerical simulation is the only reasonable approach for understanding these problems.  However, using higher fidelity models generally requires more effort in numerically integrating the models and verifying their implementation in a computational mechanics code.  And while substantial effort has been made in advancing theory and deriving more advanced models, limited attention has been paid to their numerical implementation.  As the community relies more on modeling and simulation, computational issues are a primary concern for constitutive modeling. Accurate numerical integration and verified implementations are required for credible analysis capabilities.
We invite researchers working in computational materials modeling to submit papers on material modeling with emphasis on the numerical integration of material models.  Talks on theoretical model development, implementation, verification, and analysis are welcome.
Topics that will be considered include:

- Small and Large Deformation Formulations
- Elasticity
- Plasticity
- Viscoplasticity
- Viscoelasticity
- Equations of State
- Foams
- Composites
- Damage and Failure
- Micromechanics
- Porous Materials
- Texture and Anisotropy
- Particulate Materials
- Rate and Temperature effects

keywords: materials, constitutive models, solid mechanics, modeling and simulation