Compute engineering strain ε = (L−L₀)/L₀ as the relative change of gauge length for tensile testing and deformation analysis.
标距长度的相对变化。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Engineering strain | ε = (L − L₀)/L₀ | Standard tensile-test definition |
| Related standards | True strain ln(1+ε) for large deformation | GB/T 228.1 / ISO 6892-1 |