NACA-TN-4394

The rate of fatigue-crack propagation in two aluminum alloys

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:13:38Z
date available	2017-09-04T17:13:38Z
date copyright	01/01/1958
date issued	1958
identifier other	YYONEEAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/137089
description abstract	A general method has been developed for the determination of fatigue-crack propagation rates. In order to provide a check on the theoretical predictions and to evaluate certain empirical constants appearing in the expression for the rate of fatigue-crack propagation, an extensive series of tests has been conducted. Sheet specimens, 2 inches and 12 inches wide, of 2024-T3 and 7075-T6 aluminum alloys were tested in repeated tension with constant-amplitude loading. Stresses ranged up to 50 ksi, based on the initial area. good agreement between the results and predictions was found.
language	English
title	NACA-TN-4394	num
title	The rate of fatigue-crack propagation in two aluminum alloys	en
type	standard
page	47
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1958
contenttype	fulltext