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Fatigue Tests of Riveted Joints : Progress Report of Tests of 17S-T and 53S-T Joints

Description: Report presenting the fatigue data obtained at the Aluminum Research Laboratories from tests of various types of 17S-T and 53S-T specimens. The specimens were large enough to represent actual service conditions, but the repetition of loading was more rapid than would occur in ordinary service.
Date: September 1944
Creator: Hartmann, E. C.; Lyst, J. O. & Andrews, H. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Early Detection of Cracks Resulting From Fatigue Stressing

Description: Report discusses an apparatus that may be used for indicating the formation of fatigue cracks or for following the progress of cracks. Details of the experiment and discussion of the way in which the deflection-crack area relationship may be used to monitor fatigue cracks are included.
Date: September 1944
Creator: Bennett, John A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fatigue Strength and Related Characteristics of Aircraft Joints 1: Comparison of Spot-Weld and Rivet Patterns in 24S-T Alclad and 75S-T Alclad

Description: Report contains detailed results of a number of fatigue tests on spot-welded joints in aluminum alloys. The tests described include: (1) fatigue tests on spot-welded lap joints in sheets of unequal thickness of alclad 24s-t. These tests indicate that the fatigue strength of a spot-welded joint in sheets of two different gages is slightly higher than that of a similar joint in two sheets of the thinner gage but definitely lower than that of a similar joint in two sheets of the thicker gage. (2) … more
Date: December 1944
Creator: Russell, H. W.; Jackson, L. R.; Grover, H. J. & Beaver, W. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fatigue strength and related characteristics of joints in 24S-T Alclad sheet

Description: Report includes tension fatigue test results on the following types of samples of 0.040-inch alclad 24s-t: (1) monoblock sheet samples as received and after a post-aging heat treatment, (2) "sheet efficiency" samples (two equally stressed sheets joined by a single transverse row of spot welds) both as received and after post-aging, (3) spot-welded lap-joint samples as received and after post-aging, and (4) roll-welded lap-joint samples. (author).
Date: May 1944
Creator: Russell, H. W.; Jackson, L. R.; Grover, H. J. & Beaver, W. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Axial Fatigue Tests at Zero Mean Stress of 24S-T Aluminum-Alloy Sheet With and Without a Circular Hole

Description: "Axial fatigue tests were made on 189 coupon specimens of 0.032-inch 24S-T aluminum-alloy sheet and a few supplementary specimens of 0.004-inch sheet. The mean load was zero. The specimens were restrained against lateral buckling by lubricated solid guides described in a previous report on this project. About two-thirds of the 0.032-inch specimens were plain coupons nominally free from stress raisers. The remainder contained a 0.1285-inch drilled hole at the center where the reduced section was… more
Date: November 1944
Creator: Brueggeman, W. C.; Mayer, M., Jr. & Smith, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Axial Fatigue of 10 Airplane Wing-Beam Specimens by the Resonance Method

Description: Note presenting axial fatigue tests made by the resonance method on 10 specimens from airplane wing beams. The specimens contained several types of stress raiser, such as rivets, holes, fittings, splices, reinforcing plates, and so forth. The results show a greater fatigue stress concentration factor for the wing-beam specimens than for drilled coupons machined from the flanges or for parallel strip coupons containing idle rivets.
Date: December 1944
Creator: Brueggeman, W. C.; Krupen, P. & Roop, F. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Guides for preventing buckling in axial fatigue tests of thin sheet-metal specimens

Description: From Summary: "Guide fixtures are described by means of which axial fatigue loads including compression may be applied to a thin sheet-metal specimen. Tests indicate that the guides prevented buckling without bypassing the load or injuring the specimen."
Date: April 1944
Creator: Brueggeman, W. C. & Mayer, M., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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