Rail Stress Calculator
Calculate thermal stress in continuous welded rail (CWR) from temperature change using σ = E × α × ΔT. Assess buckling and break risk.
Inputs
°F
°F
lb/yd
Results
Thermal stress
6,825 psi
Thermal stress47.1 MPa
Axial force91 kips
Temperature change35 °F
Stress type1
Stress/yield ratio0.1
Safety factor10.26
Buckling risk level0
Rail break risk level0
Break gap (39-ft rail)0.11 in
Rail cross-section area13.33 in²
How to Use This Calculator
- Enter Neutral (stress-free) temperature, Current rail temperature, and Rail weight.
- Review the Thermal stress (psi) result.
- Use Thermal stress (MPa) and Axial force (kips) to inform your decision.
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