Southwell plot pdf

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Abstract The experimental determination of the critical loads of isolated pin-ended struts by the Southwell plot is well known. Issue Section:. You do not currently have access to this article. Download all slides. Sign in Don't already have an Oxford Academic account? It is shown that the former may be due to inherent zero errors in the deflection measurement and that this can cause serious errors in the apparent critical load P c.

For plates, use is made of a general post-critical equation of which Donnell's result for a simply supported square plate is a special case. A new graphical technique is proposed for finding P c for plates with small imperfections, and applied to example data from published test results. A more general numerical technique is also proposed and applied to results from a test during which the experimental boundary conditions were changing.

This is a preview of subscription content, access via your institution. Rent this article via DeepDyve. Croll, J. Google Scholar. Southwell, R. Royal Soc.

London, Ser. A , , — Ayrton, W. Fidler, T. Young, T. Westergaard, H. ASCE , 55 , — Horton, W. Donnell, L. Lundquist, E. Christopherson, D. Ariaratnam, S. Roorda, J. Leicester, R. Karman, T. Wilson, J. Article Google Scholar. Schlack, A. SESA , 25 1 , 69—74 Feb. Hoff, N. SESA , 5 2 , 14—24 Coan, J. Bronshtein, I.

Spencer, H. Walker, A.