Experimental investigation of the effects of plastic flow in a tension panel with a circular hole
By: by George E. Griffith
Contributors: United States. National Advisory Committee for Aeronautics
Series: National Advisory Committee for Aeronautics technical note -- number 1705; Technical note (United States. National Advisory Committee for Aeronautics) -- no. 1705.
Publisher: National Advisory Committee for Aeronautics
Published: 1948
Place of publication: Washington, D.C
Language: eng
Number of pages: 17
ISBN-13: 9781680156140
Subjects: Aluminum alloys; Plates (Engineering); Holes; Loads (Mechanics); Alloys; Creep; Strains and stresses; Aluminium; Alliages; Plaques (Ingénierie); Trous; Charges; Fluage; Contraintes (Mécanique); Aluminum alloy; Strain; Stress
Description: Seven uniformly dimensioned 24S-T tension panels with a central circular hole were subjected to various loads in order to study the effects of plastic flow at the point of maximum stress concentration. The results, presented in graphical form, show that, as the amount of plastic flow increases, the stress concentration factor is appreciably reduced and the strain concentration factor is appreciably increased. Subjecting the panels to 100 repeated loading cycles caused no change to occur in the maximum values of the stress and strain concentration factors.
Notes: "September 1948."

NACA TN No. 1705.

Includes bibliographical references.

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