An improvement of Southwell's method for determining buckling loads
Hendershot, Robert Paul
Brock, John E.
MetadataShow full item record
If an elastic bar with some initial imperfection is subjected to increasing compressive axial load, the lateral deflection, measured anywhere along its length, increases monotonically; the primary buckling mode becoming more and more dominant in the deflected shape. A classical approximate technique, due to R.V. Southwell, correlates axial load and lateral deflection for determination of the primary buckling load of the bar. However, Southwell's approximation may be inaccurate is the primary mode does not predominate in the deflected shape. The present thesis proposes a technique which employs axial loading, but also transverse loading to insure dominance of the primary mode in the deflected shape. The technique allows experimental determination of the second buckling load, again using appropriate transverse loads to insure dominance of that mode in the deflected shape.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Winner, Crawford Douglas (Troy, New York; Rensselaer Polytechnic Institute, 1951-05);The limit imposed on the operating range of a radial flow compressor by surging or pulsations in the reduced flow region has long been a source of concern to design engineers who would like to use this otherwise simple, ...
Sears, Johnny Marion (Monterey, California. Naval Postgraduate School, 1968-06);Averaged oceanographic station data are used to describe the seasonal variation of salinity and temperature in the Strait of Gibraltar area. Seasonal sections of salinity suggest that winter is the season of maximum outflow ...
Myers, Alexandra. (Monterey, California. Naval Postgraduate School, 2004-06);This research will be used to evaluate the feasibility of robotically, or remotecontrolled firefighting nozzles aboard air-capable ships. A numerical model was constructed and analyzed, using the program CFD-ACE, of a fire ...