Bending Strength.
Alternate term for flexural strength. It is most com-
monly used to describe flexure properties of cast iron
and wood products.
Bond Strength.
Stress (tensile load divided by area of bond) required to
rupture a bond formed by an adhesive between two met-
al blocks. (ASTM D-952).
Breaking Load.
Load which causes fracture in a tension, compression,
flexure or torsion test. In tension tests of textiles and
yarns, breaking load also is called breaking strength. In
tensile tests of thin sheet materials or materials in form
of small diameter wire it is difficult to distinguish be-
tween breaking load and the maximum load developed,
so the latter is considered the breaking load.
Breaking Strength.
Tensile load or force required to rupture textiles (e.g., fi-
bers, yarn) or leather. It is analogous to breaking load in
a tension test. Ordinarily, breaking strength is reported
as lb. or lb/in of width for sheet specimens.
Bulk Modulus of Elasticity.
Ratio of stress to change in volume of a material sub-
jected to axial loading. Related to Modulus of Elasticity
(E) and Poisson’s Ratio (r) by the following equation:
K =
Er
3(1−2r)
Glossary M10-94400-1
B-2
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