Shear strength in mechanical engineering and
structural engineering is a term used to describe
the strength against the type of structural failure
where a component fails by shearing when it splits
into two parts that slide past each other.
The shear strength of a component is most
important for beams but also relevant for e.g.
In a reinforced concrete beam, the main purpose of
stirrups is to increase the shear strength.
Riveted and bolted joints may also be mainly
subjected to shear stress.
Cantilevers, beams, consoles and column heads are
subject to composite loading, consisting of shear,
tensile and compressive stress.
(or tension) is the stress state
leading to expansion; that is, the length of a
material or compression member tends to increase
in the tensile direction.
is the opposite of compressive
Structural members in direct tension are
Beams subjected to bending moments may include
tensile stress as well as compressive stress and/or
of a material
is the maximum amount of tensile
stress that it can be subjected to
The definition of failure can vary
according to material type and
… applies to materials resulting in
their compaction (decrease of
When a material is subjected to
then this material
is under compression.
Usually compressive stress applied
, etc. leads to
is a mechanical construction
allowing extension and compression in a
, from structural
engineering, is a
joint which relies on
(rather than shear or tensile
strength) to hold two things in place.
most common slip
is where a
girder meets a larger beam.
Typically an angle plate joins the two.
One beam is welded to the angle plate, the other
has holes which are generally oversized or slotted.
bolt through this plate
doesn't actually take the
load as a shear joint or a bearing joint,
it simply creates normal force and therefore
friction between the two steel faces.