Free interactive tools for structural analysis, fatigue assessment, and engineering calculations. Based on industry standards.
Calculate fatigue life using 40+ S-N curve classes from four major standards. Interactive Plotly visualization, multiple environments (air/seawater), SCF support, and real-time damage calculation. Our most comprehensive fatigue tool.
Simple fatigue life calculator for welded steel joints using DNV S-N curves. Quick estimates for preliminary fatigue assessments. For more comprehensive analysis with multiple standards and interactive plotting, use the S-N Curve Calculator above.
Calculate stress concentration factors (SCFs) for tubular joints and common structural details. Includes parametric equations for T, Y, K, and X joints based on geometry and loading.
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Calculate minimum wall thickness for cylindrical and spherical pressure vessels under internal and external pressure. Includes corrosion allowance and manufacturing tolerance considerations.
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These calculators are provided as educational tools for preliminary engineering estimates. They implement industry-standard methods from recognized codes and standards including:
For complex fatigue assessments, FEA-based stress analysis, or AI-enhanced engineering solutions, we offer professional consulting services with validated methodologies.