Tensile Strength Calculator
Calculate the ultimate tensile strength of a material from the maximum load and original cross-sectional area.
Ultimate Tensile Strength
572.96 MPa
Ultimate Tensile Strength vs Maximum Load (F)
Formule
## 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.
Exemple Résolu
A 10 mm diameter steel rod fails at 45 kN.
- 01Area of 10 mm diameter rod = pi × 5² = 78.54 mm²
- 02UTS = 45000 / 78.54 = 572.9 MPa
- 03In ksi: 572.9 × 0.145 = 83.1 ksi
Questions Fréquentes
What is the difference between tensile strength and yield strength?
Yield strength is the stress at which permanent deformation begins (typically at 0.2% offset). Tensile strength is the maximum stress before failure. For mild steel, yield is about 60-70% of UTS.
Is tensile strength the same as breaking strength?
Not exactly. The engineering stress at the actual fracture point (breaking stress) is usually lower than UTS because the specimen necks down, reducing the true area. UTS is the peak on the engineering stress-strain curve.
What are typical UTS values for common materials?
Mild steel: 400-550 MPa, aluminum 6061-T6: 310 MPa, titanium Ti-6Al-4V: 950 MPa, carbon fiber composite: 600-3500 MPa depending on layup.
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