Calculation
ε = ΔL / L₀
Strain is dimensionless; 0.001 equals 0.1% or 1,000 µm/m.
ε = ΔL/L₀
Engineering strain from elongation
Strain is dimensionless; 0.001 equals 0.1% or 1,000 µm/m.
MINTSI
02
Result
Select a target and calculate.
Understand the inputs
- Engineering strain ε — Change in length divided by original length.
- Length change ΔL — Positive elongation, negative shortening.
- Original length L₀ — Gauge length before loading.
Example
0.1 mm over 100 mm is ε = 0.001 = 0.1%.
Assumptions and limits
Small strain; local plasticity and Poisson contraction are not evaluated.
Sources