Electromechanical Universal Testing Machine 5kn Tensile Properties for Plastics ISO527 Etm503b

Description: Tensile testing machine for plastics

Standard: ISO527

Tensile stress at yield; yield stress, first stress at which an increase in strain occurs without an increase in stress it is expressed in megapascals (MPa) it may be less than the maximum attainable stress

Tensile stress at break, the tensile stress at which the test specimen ruptures it is expressed in megapascals (MPa)

Tensile strength,maximum tensile stress sustained by the test specimen during a tensile test it is expressed in megapascals (MPa)

Tensile stress at x % strain stress at which the strain reaches the specified value x expressed in percentage it is expressed in megapascals (MPa) it may be measured for example if the stress/strain curve does not exhibit a yield point In this case, x shall be taken from the relevant product standard or agreed upon by the interested parties. x must be lower than the strain corresponding to the tensile strength.

Tensile strain,Increase in length per unit original length of the gauge. It is expressed as a dimensionless ratio, or in percentage (%) [see 10.2, equations (4) and (5)]. It is used for strains up to yield point.

Tensile strain at yield, tensile strain at the yield stress it is expressed as a dimensionless ratio, or in percentage (%)

Tensile strain at break, tensile strain at the tensile stress at break, if it breaks without yielding it is expressed as a dimensionless ratio, or in percentage (%) for breaking after yielding,

Tensile strain at tensile strength, tensile strain at the point corresponding to tensile strength, if this occurs without or at yielding (see Figure 1, curves a and d) it is expressed as a dimensionless ratio or in
percentage (%) for strength values higher than the yield stress

Nominal tensile strain, Increase in length per unit original length of the distance between grips (grip separation). It is expressed as a dimensionless ratio, or in percentage (%) It is used for strains beyond yield point
For strains up to yield point. It represents the total relative elongation which takes place along the free length of the test specimen.

Nominal tensile strain at break, nominal tensile strain at the tensile stress at break , if the specimen breaks after yielding it is expressed as a dimensionless ratio, or in percentage (%).for breaking without yielding,

Nominal tensile strain at tensile strength, nominal tensile strain at tensile strength, if this occurs after yielding it is expressed as a dimensionless ratio, or in percentage (%) for strength values without or at yielding.

Modulus of elasticity in tension; Young's modulus, Et ratio of the stress difference B2 minus B1 to the corresponding strain difference values ¼2 = 0,002 5 minus ¼1 = 0,000 5 (see Figure 1, curve d and 10.3,
equation (8)] it is expressed in megapascals, (MPa) this definition does not apply to films and rubber

Poisson's ratio, negative ratio of the tensile strain ¼n, in one of the two axes normal to the direction of pull, to the corresponding strain ¼ in the direction of pull, within the initial linear portion of the longitudinal
versus normal strain curve it is expressed as a dimensionless ratio poisson's ratio is indicated as Èb (width direction) or Èh (thickness direction) according to the relevant axis. Poisson's ratio is preferentially used for
long-fibre-reinforced materials.