You limited your search to:

  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Year: 1943
 Month: July
 Collection: Technical Report Archive and Image Library
Description of stress-strain curves by three parameters

Description of stress-strain curves by three parameters

Date: July 1, 1943
Creator: Ramberg, Walter & Osgood, William R
Description: A simple formula is suggested for describing the stress-strain curve in terms of three parameters; namely, Young's modulus and two secant yield strengths. Dimensionless charts are derived from this formula for determining the stress-strain curve, the tangent modulus, and the reduced modulus of a material for which these three parameters are given. Comparison with the tensile and compressive data on aluminum-alloy, stainless-steel, and carbon-steel sheet in NACA Technical Note No. 840 indicates that the formula is adequate for most of these materials. The formula does not describe the behavior of alclad sheet, which shows a marked change in slope at low stress. It seems probable that more than three parameters will be necessary to represent such stress-strain curves adequately.
Contributing Partner: UNT Libraries Government Documents Department
Design, selection, and installation of aircraft heat exchangers

Design, selection, and installation of aircraft heat exchangers

Date: July 1, 1943
Creator: Brevoort, Maurice J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Determination of general relations for the behavior of turbulent boundary layers

Determination of general relations for the behavior of turbulent boundary layers

Date: July 1, 1943
Creator: Tetervin, Neal
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of rivet pitch upon the fatigue strength of single-row riveted joints of 0.025- to 0.025-inch 24S-T alclad

Effect of rivet pitch upon the fatigue strength of single-row riveted joints of 0.025- to 0.025-inch 24S-T alclad

Date: July 1, 1943
Creator: Seliger, Victor
Description: S-N curves at the range ratio of 0.2 were experimentally obtained for each of the following values of rivet pitch P as used in a single-row lap joint of 0.025- to 0.025-inch 24S-T alclad with one-eight AN430 round-head rivets: p=0.5, 0.75, 1.0, 1.5. Families of constant rivet pitch curves, which define the fatigue life for specimens studied, were developed. Curves showing the variation of the effective stress concentration factor in fatigue with rivet pitch and maximum load per rivet were also established.
Contributing Partner: UNT Libraries Government Documents Department
Effect of turbulence on air-flow measurements behind orifice plates

Effect of turbulence on air-flow measurements behind orifice plates

Date: July 1, 1943
Creator: Nielsen, Jack N
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of xylidines on the corrosiveness of aircraft-engine oil

The effect of xylidines on the corrosiveness of aircraft-engine oil

Date: July 1, 1943
Creator: Olson, Walter T
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Flight measurements of compressibility effects on a three-blade thin Clark Y propeller operating at constant advance-diameter ratio and blade angle

Flight measurements of compressibility effects on a three-blade thin Clark Y propeller operating at constant advance-diameter ratio and blade angle

Date: July 1, 1943
Creator: Vogeley, A W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Investigation for the development of a high-speed antiaircraft tow target

Investigation for the development of a high-speed antiaircraft tow target

Date: July 1, 1943
Creator: Migotsky, Eugene
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Investigation of methods of reducing the temperature variation among cylinders on air-cooled aircraft engines

Investigation of methods of reducing the temperature variation among cylinders on air-cooled aircraft engines

Date: July 1, 1943
Creator: Mueller, William A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Knocking tendency of an air-cooled aircraft-engine cylinder with one and with two spark plugs

Knocking tendency of an air-cooled aircraft-engine cylinder with one and with two spark plugs

Date: July 1, 1943
Creator: Jones, A W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
FIRST PREV 1 2 3 NEXT LAST