Letter | Published:

Volume Flow of Plastic Materials

Nature volume 158, page 706 (16 November 1946) | Download Citation



SWAINGER1 has stated recently that an increase in volume occurs during the plastic flow of duralumin specimens under a tensile test. While it is generally assumed that volume is unchanged during plastic flow, we should like to point out that, in 1939, Glanville and Thomas2 showed that the creep of concrete in compression was characterized by a decrease in volume. The concrete, in fact, flowed into its own voids.

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  1. 1.

    , Nature, 158, 165 (1946).

  2. 2.

    , and , Building Research Technical Paper, No. 21. (London: H.M. Stationery Office, 1939).

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  1. Road Research Laboratory, Department of Scientific and Industrial Research, Harmondsworth, West Drayton, Middlesex. Oct. 18.

    • A. R. LEE
    • , M. REINER
    •  & P. J. RIGDEN


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