Notation

Quantity

Symbol

SI Unit

Angle Length

Area

Volume

Time

Angular velocity

Velocity

Weight

Mass

Density

Force

Moment

Pressure

Stress Strain

Shear stress Shear strain Young's modulus Shear modulus Bulk modulus Poisson's ratio Modular ratio Power

Coefficient of linear expansion Coefficient of friction Second moment of area Polar moment of area Product moment of area Temperature Direction cosines Principal stresses Principal strains Maximum shear stress Octahedral stress a, ß, e, Y, <P L, s

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