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Investigation of Design Criteria of Stiffened Wooden Panels


Sweeney, William Edward and Bridgland, Edgar Parsons (1943) Investigation of Design Criteria of Stiffened Wooden Panels. Engineer's thesis, California Institute of Technology. doi:10.7907/4YVN-3R91.


The aim of this research was to find design data for the stiffened plywood panels supplied by the Fletcher Aviation Company.

The tests included stiffened panel tests, unstiffened panel tests, and short column tests to find the physical properties of the material.

The results of these tests, show that the ultimate compression stress which the specimen will resist is a function of the percentage stiffener area compared to the total panel area, and the L/P ratio of the panel.

Predicted ultimate stresses from the curves developed show sufficiently good agreement with actual test, that they may be used for design purposes with allowance for descrepancies in material and workmanship.

Item Type:Thesis (Engineer's thesis)
Subject Keywords:(Aeronautical Engineering)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Sechler, Ernest Edwin (advisor)
  • Dunn, Louis G. (advisor)
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1943
Record Number:CaltechETD:etd-12242008-113646
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5135
Deposited By: Imported from ETD-db
Deposited On:15 Jan 2009
Last Modified:10 Nov 2023 17:44

Thesis Files

PDF (Sweeney_we_1943.pdf) - Final Version
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