Hello. Sign In
Standards Store

NACA-TN-902

1943 Edition, January 1, 1943

Complete Document

DESCRIPTION OF STRESS-STRAIN CURVES BY THREE PARAMETERS



Detail Summary

Active, Most Current

Format
Details
Price (USD)
PDF
Single User
$38.00
Print
In Stock
$42.00
PDF + Print
In Stock
$56.00 You save 30%
Add to Cart

Product Details:


Description / Abstract:

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.