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Tensile Test - Coggle Diagram
Tensile Test
Diffrences od tensile curves of material
Polymers
3 typical curves fail at very low stresses
2) Ductile polymers have an elastic region, yielding and a plastic region
3) Highly elastic polymers such as rubbers
1) Brittle polymers fail in the elastic region
Ceramics
Brittle material only elastic behaviour
When the elastic limit, the bonds between the atom break
Mild steel
Know as
discontinuous yielding
The yield point where stress does not increase continuously as strain increases
Composites
Slightly more ductility than ceramics
Non-ferrous material
Intermediate modulus
A large amount of elongation that occurs in the plastic region
Relatively high strains
Relationship with strength
Requires small volumes of material
Easy to prepare samples
Simple and quick
Typical of tensile curve
Ductility
Modulus
Yield strength
Hardness testing
to obtain an estimate of the material properties of the material