TENSILE STRENGTH is the
measure of the force or stress required to pull something (resistance
to lengthwise stress) to the point where it breaks or before
permanent deformation results. Usually it is the maximum amount of
tensile stress that it can be subjected to before failure although
the definition of failure can vary according to material type and
In the fields of material science,
mechanical engineering and structural engineering there are three
typical definitions of tensile strength:
Yield strength: the stress at
which material strain changes from elastic deformation to plastic
deformation, causing it to deform permanently.
Ultimate strength: the maximum
stress a material can withstand.
Breaking strength: the stress
coordinate on the stress-strain curve at the point of rupture.
Tensile Strength can relate to the
Toughness of products. The higher the tensile strength a product
possesses the more difficult or tougher it is to stretch. This
property can be a positive feature in some products, for example in
rope and rubber bands to an extent, but is regarded as unacceptable
or negative in chewing gum, mozzarella cheese, noodles or christmas crackers.
the degree (distance) to which a product can be extended/stretched
before breaking. It is related to the 'elasticity' of a product. It
is commonly the textural property possessed by raw baked goods (e.g.
dough, pastry), cooked baked goods and pasta (e.g. pancakes,
tortillas, noodles) but can be a novel property of confectionery
products (e.g. liquorice, chewing gum).
properties that can be obtained from a texture analysis graph:
Tensile Strength, Burst
Strength, Distance to Burst, Resistance to Extension/Toughness,
Extensibility, Stretch Quality, Elasticity, tug force, tear strength.
The above are only typical
examples of tensile
We can, of course, design and manufacture probes or fixtures that
are bespoke to your sample and its specific measurement.
Once your measurement is
performed, our expertise in its graphical interpretation is
unparalleled no-one understands texture analysis like we do.
Not only can we develop the most suitable and accurate method for the
testing of your sample, but we can prepare analysis procedures that
obtain the desired parameters from your curve and drop them into a
spreadsheet or report designed around your requirements.
Texture Analyser graph with
To discuss your specific test
here to email us.
We can all feel
it; let us show you how to measure it
click on the video to see an overview of Texture Analysis and
the properties it can measure...