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Key Concept:
A
beam is a structural member that can support transverse shear, V,
torsion, T, and bending
moments, M, in addition to axial forces, P.
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In a Nut Shell:
Beams
are common structural members used extensively in construction,
housing, and automotive
industries. Automotive frames,
wrenches, and diving boards
are just a few examples.
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In the figure below w(x)
is a distributed load acting on a rectangular beam element.
Internal forces
developed in the beam include: The
axial force, P, the shear force, V,
the bending moment, M,
and the torque, T, shown with a double headed arrow. Each
force shown, including
the distributed loading, w(x), is shown in its positive direction.
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