Abstract
CTH is a family of codes developed at Sandia National Laboratories for modelling complex multi-dimensional, multi-material problems that are characterized by large deformations and/or strong shocks. A two-step, second-order accurate Eulerian solution algorithm is used to solve the mass, momentum, and energy conservation equations. CTH includes models for material strength, fracture, porosity, and high explosive detonation and initiation.
Viscoplastic or rate-dependent models of material strength have been added recently. The formulations of Johnson-Cook, Zerilli-Armstrong, and Steinberg-Guinan-Lund are standard options within CTH. These models rely on the use of an internal state variable (typically the equivalent plastic strain) to account for the history dependence of material response. Comparison with experimental data will be made using a new material strength model. The advancements made in modelling material response have significantly improved the ability of CTH to model complex large-deformation, plastic-flow dominated phenomena.
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© 1995 Springer-Verlag Berlin Heidelberg
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Hertel, E.S. et al. (1995). CTH: A Software Family for Multi-Dimensional Shock Physics Analysis. In: Brun, R., Dumitrescu, L.Z. (eds) Shock Waves @ Marseille I. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78829-1_61
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DOI: https://doi.org/10.1007/978-3-642-78829-1_61
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-78831-4
Online ISBN: 978-3-642-78829-1
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