Investigation of Design Criteria of Stiffened Wooden Panels

Authors: Sweeney, William Edward; Bridgland, Edgar Parsons

Year: 1943

Degree: Engineer's thesis

Advisors: Sechler, Ernest Edwin; Dunn, Louis G.

Committee Member: Unknown, Unknown

Option: Aeronautics

DOI: 10.7907/4YVN-3R91

Abstract

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.

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