# Beam shear

## Description

Shear stress,is defined as the component of stress coplanar with a material cross section. The average shear stress is force per unit area. Beam shear is defined as the internal shear stress of a beam caused by the shear force applied to the beam.

Related formulas## Variables

τ | Shear stress (Pa) |

f | Total shear force at the location in question (N) |

Q | Statical moment of area (m^{3}) |

I | Moment of Inertia of the entire cross sectional area (second moment of area) (m^{4}) |

b | Thickness in the material perpendicular to the shear (m) |