| |
|
Stress,
Strain, and Elastic Constants
· The
diagram shows the effect of applying a uniaxial tensile (a) or compressive
(b) force, F, to a cylindrical sample that stays in the elastic response
range.
· Nominal or Engineering
Stress and Strain for the samples are defined in terms of a normalization
with respect to the initial sample dimensions.
Engineering Stress:
σN = (Force/
Initial Area) = (F/A0)
Engineering Strain:
ε N = (Change in Length/Initial
Length)
= (ΔL/L0)
|
|
|
|
|
|
|
|
|
|
|
|
