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An investigation of the stresses and deflections of swept plates

Citation

Chandler, Ralph Stewart and Gilkeson, Fillmore Bolling (1949) An investigation of the stresses and deflections of swept plates. Engineer's thesis, California Institute of Technology. doi:10.7907/WSRF-6S68. https://resolver.caltech.edu/CaltechTHESIS:10132015-085455473

Abstract

The problem in this investigation was to determine the stress and deflection patterns of a thick cantilever plate at various angles of sweepback.

The plate was tested at angles of sweepback of zero, twenty, forty, and sixty degrees under uniform shear load at the tip, uniformly distributed load and torsional loading.

For all angles of sweep and for all types of loading the area of critical stress is near the intersection of the root and trailing edge. Stresses near the leading edge at the root decreased rapidly with increase in angle of sweep for all types of loading. In the outer portion of the plate near the trailing edge the stresses due to the uniform shear and the uniformly distributed load did not vary for angles of sweep up to forty degrees. For the uniform shear and the uniformly distributed loads for all angles of sweep the area in which end effect is pronounced extends from the root to approximately three quarters of a chord length outboard of a line perpendicular to the axis of the plate through the trailing edge root. In case of uniform shear and uniformly distributed loads the deflections near the edge at seventy-five per cent semi-span decreased with increase in angle of sweep. Deflections near the trailing edge under the same loading conditions increased with increase in angle of sweep for small angles and then decreased at the higher angles of sweep. The maximum deflection due to torsional loading increased with increase in angle of sweep.

Item Type:Thesis (Engineer's thesis)
Subject Keywords:Aeronautics
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • De Groff, Harold (advisor)
  • Lurie, Harold (co-advisor)
  • Fung, Yuan-cheng (co-advisor)
Group:GALCIT
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1949
Record Number:CaltechTHESIS:10132015-085455473
Persistent URL:https://resolver.caltech.edu/CaltechTHESIS:10132015-085455473
DOI:10.7907/WSRF-6S68
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9217
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:13 Oct 2015 16:55
Last Modified:10 Mar 2020 23:47

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