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Strain-Path Modeling for Geo-Materials

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Theoretical foundation for large-scale computations for nonlinear material behavior

Part of the book series: Mechanics of elastic and inelastic solids 6 ((MEIS,volume 6))

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Abstract

The explosions that most concern us all have effects known mainly by calculation. Since the calculations’ credibility influences the cost and scope of deterrence, reliable numerical prediction of explosion-effects is a long-sought goal. For free fields, flaws in stress-strain relations limit the accuracy of predictions: Such relations are hard to establish for specific geo-materials and admit a very wide range of fields. However, the kinds of deformation occurring in free fields depend more on burst geometry than on material properties. In particular, for contained, nearly spherical bursts — the basic events in nuclear monitoring — the paths traced in strain space by deforming material elements (“strain paths”) have shapes and orientations (“patterns”) that vary little with medium. Also, a) the patterns form a simple set, b) at a given strain amplitude they are not diverse, and c) hardware is at hand for stress measurement along them in the laboratory and (probably) in situ. Hence, it now appears feasible to obtain by measurement the stress-strain curves needed for reliable prediction of seismic sources.

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Authors and Affiliations

  1. Applied Theory, Inc., 930 South La Brea Avenue, Los Angeles, California, 90036, USA

    John G. Trulio

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  1. John G. Trulio
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Editors and Affiliations

  1. Northwestern University, Evanston, Illinois, USA

    Siavouche Nemat-Nasser

  2. Brown University, Providence, Rhode Island, USA

    Robert J. Asaro

  3. University of California, San Diego, La Jolla, California, USA

    Gilbert A. Hegemier

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© 1984 Martinus Nijhoff Publishers, Dordrecht.

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Trulio, J.G. (1984). Strain-Path Modeling for Geo-Materials. In: Nemat-Nasser, S., Asaro, R.J., Hegemier, G.A. (eds) Theoretical foundation for large-scale computations for nonlinear material behavior. Mechanics of elastic and inelastic solids 6, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6213-2_11

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  • DOI: https://doi.org/10.1007/978-94-009-6213-2_11

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-009-6215-6

  • Online ISBN: 978-94-009-6213-2

  • eBook Packages: Springer Book Archive

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