

















Compression, Tension, Shear, Bending, Torsion







1)
Two basic forces: Compression & Tension


2) A combination of compression and tension: Shear & Bending


3) A combination of the above four forces: Torsion








Compression: compression is the direct expression of the
force, which pushes



everything
towards the center of an object.








Tension: the opposite of compression; the force which pulls
everything away from




the center; where there is a compressive force, there must be a
tensile force.







Shear: shear is present, when two forces are thrusting in
opposite directions but



offset
and slide past each other.






Bending:
is found between the pulling of tension and the pushing of compression.







Torsion: a result of all the other four forces. Torsion is
twist. Torsion is actually a



specialized
bending, a circular bending.




