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Some wave-propagation experiments in plasteline-clay rods

Measurements are made of low-amplitude stress pulses propagated in plasteline-clay rods and lead to a preliminary description of dynamic behavior

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Abstract

Compressional stress pulses have been propagated in plasteline-clay rods by detonating small charges of lead azide at one end. A capacitance gage at the other end was used to measure particle displacement associated with the pulses and the particle velocity was obtained by differentiation. The shapes and amplitudes of the pulses were determined in separate experiments using composite clay-steel rods where the steel acted, in effect, as a pressure transducer. The techniques employed permitted comparatively accurate determination of some aspects of the dynamic behavior of clay. On the basis of preliminary results, the behavior of clay has been compared to that of a linear viscoelastic solid with the tentative goal of studying the validity of a viscoelastic constitutive model.

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References

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Authors and Affiliations

  1. Department of Engineering Mechanics, University of Texas, Austin, Tex.

    H. H. Calvit (Assistant Professor)

  2. Department of Engineering and Applied Science, Yale University, New Haven, Conn.

    D. Rader (Assistant Professor)

  3. Gulf Research and Development Co., Pittsburgh, Pa.

    J. Melville

Authors
  1. H. H. Calvit
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  2. D. Rader
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  3. J. Melville
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Additional information

All authors were associated with the Division of Engineering, Brown University, Providence, R. I., at the time that this paper was prepared.

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Calvit, H.H., Rader, D. & Melville, J. Some wave-propagation experiments in plasteline-clay rods. Experimental Mechanics 8, 418–423 (1968). https://doi.org/10.1007/BF02326003

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  • DOI: https://doi.org/10.1007/BF02326003

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