Stress Calculator
Mechanical Stress Analysis
Calculate tensile, compressive, and shear stress with safety factor analysis for engineering applications.
Calculator
About Stress
Stress is the internal force per unit area within a material that arises from externally applied forces.
σ (or τ) = F / A
Pa (N/m²), MPa, psi
Stress Types
Pulling force, material stretches
Pushing force, material compresses
Parallel force, material slides
Common Materials
Yield: 250 MPa, Ultimate: 400 MPa
Yield: 95 MPa, Ultimate: 110 MPa
Compressive: 20-40 MPa
Tensile: 40 MPa, Compressive: 35 MPa
Safety Factor
Safety Factor (SF) = Yield Strength / Applied Stress
• Buildings: SF = 2-3
• Bridges: SF = 3-5
• Aircraft: SF = 1.5-2
• Pressure vessels: SF = 3-4
Applications
- Structural engineering (beams, columns)
- Mechanical design (shafts, bolts)
- Civil engineering (bridges, buildings)
- Aerospace engineering
- Material selection
- Failure analysis
- Quality control
- Safety assessment
Key Concepts
Important Points:
Elastic Region: Material returns to original shape (stress < yield)
Plastic Region: Permanent deformation (yield < stress < ultimate)
Failure: Material fractures (stress ≥ ultimate)
Strain: Deformation per unit length (ε = ΔL/L)
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