Beams: Symbol Definition
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 Notation and symbols commonly used in Euler-Bernoulli beam theory are summarized below:
Independent Parameters
 Quantity Symbol Units elastic modulus E N/m2 area moment of inertia I m4 line pressure load p N/m concentrated force load P N location along beam x m height above neutral surface y m

Dependent Parameters
 Quantity Symbol Units transverse displacement w m slope of neutral surface q radian rotation of beam cross section c radian moment resultant M N-m shear resultant V N stress s N/m2 strain e 1
 Neutral Plane - Plane in the beam where all bending stresses are zero. It is the reference point for the integral defining the Area Moment of Inertia, I. Line Pressure Load - Out of convenience, beam theory defines the units for a pressure load as [N/m], as opposed to real pressure units [N/m2]. To convert a real pressure to this line pressure for beams, multiply the true pressure by the beam width,

Glossary