Yield Strength Calculator
Calculate yield strength σ_y = F_yield / A_0 and safety factor. Enter the yield load, original area, and ultimate tensile strength.
How to Use the Yield Strength Calculator
- Enter the yield load in Newtons.
- Enter the original cross-sectional area in mm².
- Enter the ultimate tensile strength (MPa) to compute the safety factor.
使用场景
- •Designing load-bearing structural members and machine parts.
- •Material selection for pressure vessels.
- •Fatigue analysis and safety margin evaluation.
公式
σ_y = F_yield / A_0, Safety Factor = σ_uts / σ_y, where F_yield is yield load (N), A_0 is original area (mm²), σ_uts is ultimate tensile strength (MPa).
常见问题
What is the difference between yield strength and tensile strength?
Yield strength is the stress at which permanent plastic deformation begins. Tensile strength is the maximum stress before fracture. Tensile strength is always higher than yield strength.
What is the safety factor?
Safety factor = ultimate strength / yield strength. A value > 1 indicates reserve capacity after yielding. For structural steel it is typically 1.5–2.0.
When is yield strength used in design?
Yield strength defines the maximum working load without permanent deformation and is central to designing machinery, buildings, and pressure vessels.