Tensile Strength Calculator — Formula
## Ultimate Tensile Strength
The ultimate tensile strength (UTS) is the maximum engineering stress a material can sustain before fracture in a standard tension test.
### Formula
**UTS = F_max / A_0**
where F_max is the peak load recorded during the tensile test and A_0 is the original cross-sectional area of the specimen. This is an engineering stress (based on original area), not true stress.
The ultimate tensile strength (UTS) is the maximum engineering stress a material can sustain before fracture in a standard tension test.
### Formula
**UTS = F_max / A_0**
where F_max is the peak load recorded during the tensile test and A_0 is the original cross-sectional area of the specimen. This is an engineering stress (based on original area), not true stress.
Exemplo Resolvido
A 10 mm diameter steel rod fails at 45 kN.
- Area of 10 mm diameter rod = pi × 5² = 78.54 mm²
- UTS = 45000 / 78.54 = 572.9 MPa
- In ksi: 572.9 × 0.145 = 83.1 ksi