The Hump Deformation Preceding a Moving Load on a Layer of Soft Material

[+] Author and Article Information
G. R. Abrahamson

Stanford Research Institute, Menlo Park, Calif.

J. N. Goodier

Stanford University, Stanford, Calif.

J. Appl. Mech 28(4), 608-610 (Dec 01, 1961) (3 pages) doi:10.1115/1.3641791 History: Received September 26, 1960; Online September 16, 2011


When a load, for instance a heavy roller, moves slowly along the surface of a solid mass of soft material, a “hump” deformation is often observed to precede it. The process of formation from an initially level surface, and the final form of hump established, are investigated analytically for a purely viscous material, in two-dimensional motion. It becomes evident that a material showing nonlinear creep, or a viscoelastic material, would show qualitatively similar behavior, the simple viscous model being adequate to exhibit the essential qualitative features.

Copyright © 1961 by ASME
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