Calculator catalog
Choose a category or search by quantity, component or engineering topic.
Found 33 calculators
Normal stress
Calculates normal stress from axial force and cross-sectional area.
Shear stress
Calculates shear stress from force and cross-sectional area.
Strain
Calculates engineering strain from change in length and original length.
Hooke's law stress
Calculates elastic stress from Young's modulus and strain.
Axial elongation
Calculates axial elongation from force, length, area and Young's modulus.
Factor of safety
Calculates the safety factor as allowable stress divided by actual stress.
Allowable stress from yield strength
Calculates allowable stress as yield strength divided by safety factor.
Required area from force and stress
Calculates required area from force and allowable stress.
Required rod diameter in tension
Calculates minimum solid rod diameter from force and allowable stress.
Bearing pressure
Calculates average bearing pressure from force and projected area.
Pin single shear stress
Calculates average pin shear stress for one shear plane.
Pin double shear stress
Calculates average pin shear stress for two shear planes.
Pin bearing pressure
Calculates average pin bearing pressure from force, diameter, and member thickness.
Thin-wall pressure vessel stresses
Calculates hoop and longitudinal stress in a thin-walled closed cylinder from internal pressure, radius and wall thickness.
Bending stress
Calculates bending stress from bending moment and section modulus.
Torsional shear stress in solid shaft
Calculates maximum torsional shear stress in a solid circular shaft.
Torsional shear stress in hollow shaft
Calculates maximum torsional shear stress in a hollow circular shaft.
Shaft angle of twist
Calculates shaft twist angle from torque, length, shear modulus and polar moment.
Von Mises plane stress
Calculates von Mises equivalent stress for plane stress.
Tresca plane stress
Calculates Tresca equivalent stress for plane stress with the third principal stress set to zero.
Euler buckling load
Calculates ideal Euler critical buckling load.
Slenderness ratio
Calculates slenderness as effective length divided by radius of gyration.
Axial strain energy
Calculates strain energy for an axially loaded member.
Plane stress transformation
Transforms sigma_x, sigma_y, and tau_xy for a specified axis angle theta.
Principal stresses 2D
Calculates the two principal stresses, maximum in-plane shear, and principal-axis direction for a plane stress state.
Maximum in-plane shear stress
Calculates the maximum in-plane shear stress of a plane stress state.
Principal directions 2D
Finds the two perpendicular principal directions of a plane stress state.
Basic stress-intensity factor
Calculates K = Y * sigma * sqrt(pi * a) with a user-provided Y.
Critical crack length
Finds the crack length at which K reaches the specified KIC.
Margin against KIC
Calculates KIC/K as a simple margin against fracture toughness.
Lifting lug analysis
Simplified analysis of a flat lifting lug with net tension, hole bearing, shear-out, base section and pin checks.
Mohr's circle with visualization
2D stress transformation, principal stresses, maximum shear and a calculation-driven Mohr-circle visualization.
Advanced LEFM fracture assessment
LEFM analysis with four documented geometries, KIC criterion and inverse allowable-stress and crack-length solutions.