Roark’s Stress Calculator

Comprehensive stress analysis equations for various engineering structures and materials. The formula is given by:

Where:

• $\sigma$ is the bending stress (in units of force per unit area, typically psi or Pa).
• $M$ is the bending moment (in units of force multiplied by distance, typically lb·ft or N·m).
• $y$ is the distance from the neutral axis to the point of interest (in the same units as the moment of inertia).
• $I$ is the moment of inertia of the beam’s cross-sectional area (in units of length^4, typically in^4 or m^4).