Modeling Large-Strain, High-Rate Deformation in Metals [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2001.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- PDF-FILE: 15 ; SIZE: 0.6 MBYTES pages
- Additional Creators:
- Lawrence Livermore National Laboratory
United States. Department of Energy
United States. Department of Energy. Office of Scientific and Technical Information
- The large strain deformation response of 6061-T6 and Ti-6Al-4V has been evaluated over a range in strain rates from 10⁻⁴ s⁻¹ to over 10⁴ s⁻¹. The results have been used to critically evaluate the strength and damage components of the Johnson-Cook (JC) material model. A new model that addresses the shortcomings of the JC model was then developed and evaluated. The model is derived from the rate equations that represent deformation mechanisms active during moderate and high rate loading. Another model that accounts for the influence of void formation on yield and flow behavior of a ductile metal (the Gurson model) was also evaluated. The characteristics and predictive capabilities of these models are reviewed.
- Published through SciTech Connect.
Third Biennial Tri-Laboratory Engineering Conference on Modeling and Simulation, Pleasanton, CA (US), 11/03/1999--11/05/1999.
Lesuer, D R; Kay, G J; LeBlanc, M M.
- Funding Information:
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