EngiRef / Formulas
True Stress
Stress based on instantaneous area
Stress & Strain
Source Details
Id
mat-true-stress
Name
True Stress
Discipline
materials
Category
Stress & Strain
Latex
\sigma_t = \sigma_e(1 + \varepsilon_e)
Description
Stress based on instantaneous area
Conditions
Uniform deformation before necking; constant volume assumption
Variables
[
{
"symbol": "σₜ",
"name": "True Stress",
"unit": "Pa",
"siUnit": "Pa",
"imperialUnit": "psi"
},
{
"symbol": "σₑ",
"name": "Engineering Stress",
"unit": "Pa",
"siUnit": "Pa",
"imperialUnit": "psi"
},
{
"symbol": "εₑ",
"name": "Engineering Strain",
"unit": "",
"siUnit": ""
}
]Solve For
σₜ, σₑ, εₑ
Tags
true, stress, instantaneous, area
Is Custom
false