calculatorReviewed 2026-06-21
Principal Stress Calculator
Resolve plane or 3D stress states into sorted principal stresses for FEA postprocessing checks.
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Finite element analysis and solid-mechanics helpers for stresses, shafts, beams, columns, joints, fatigue, bearings, and materials.
FEA utilities support preliminary solid-mechanics calculations, stress transformation, Von Mises and Tresca checks, factor-of-safety review, stress-strain relationships, beam bending stress, thermal stress, torsion, shaft sizing, buckling, beam deflection, fatigue life, weld strength, bolt preload, bearing life, material-property conversion, and solver-preparation workflows.
Published calculator entries in this category.
Resolve plane or 3D stress states into sorted principal stresses for FEA postprocessing checks.
Compute distortion-energy equivalent stress from component or principal stress inputs.
Resolve principal stresses and calculate the maximum principal-stress difference.
Resolve center, radius, principal stresses, transformed stress, and maximum in-plane shear.
Compare stress demand with yield strength or allowable stress using selected criteria.
Solve simple Hooke's law and axial stress-strain relationships with unit normalization.
Apply the flexure formula to common beam section shapes and custom section modulus values.
Estimate stress from prevented thermal expansion with full, partial, or prescribed-strain restraint modes.
Estimate torsional shear stress, angle of twist, torque, power, and circular shaft size using SI-normalized elastic torsion formulas.
Estimate required solid or hollow circular-shaft diameter using torque, bending moment, service factors, and equivalent-stress criteria.
Calculate Euler buckling load, effective length, slenderness ratio, radius of gyration, and Johnson parabolic estimates for ideal columns.
Estimate maximum deflection, slope, flexural rigidity, and section properties for common Euler-Bernoulli beam cases.
Calculate Basquin life, two-point S-N curve coefficients, Goodman/Gerber/Soderberg corrections, and Miner damage for preliminary fatigue review.
Calculate fillet throat, weld effective area, direct weld stress, allowable capacity, and required fillet leg size for preliminary checks.
Calculate preload from torque, torque from preload, proof-load based preload, bolt stress area, and simple bolt/joint stiffness load share.
Calculate L10 life for ball or roller bearings, life hours from rpm, equivalent dynamic load, and static load safety factor.
Published converter entries in this category.
Convert elastic, density, strength, and thermal properties with isotropic relationship checks and ANSYS APDL or CalculiX text output.
No. They are intended for education, estimation, and preliminary engineering checks. Critical work must be verified against applicable standards, validated software, and qualified professional judgment.
Routine calculators and converters run in the browser. File tools are designed for local browser-side processing unless a tool explicitly states otherwise.
ScholarTool category pages prioritize calculation context, unit discipline, assumptions, and interpretation so users can understand when a result is appropriate and when validated software or standards are required.
Last reviewed: 2026-07-12