Tensile Test


The tensile test is one of the basic tests for the mechanical testing of polymers. It can be carried out for nearly all types of polymers like thermoplastics, thermosetting plastics, elastomers, thermoplastic elastomers (TPC, TPU, etc.) as well as films, laminates or fibre-reinforced composites. Usually, this test is executed in the standard atmosphere (23 °C and 50 % relative humidity). In addition, we offer the tensile test at temperatures ranging from -50 °C to 250 °C. As a special feature, we can determine the Poisson’s ratio at different temperatures. Within the Stepped Isothermal Method (SIM), the tensile test can be carried out to determine the accelerated evaluation of the global long-term creep behaviour.

A special feature is the determination of true stress–strain diagrams for example for dimensioning tasks and structural design.

Figure: Multi-purpose test specimen 1A and other types of specimens for the tensile test

Specimen Preparation

  • Injection moulding
  • Milling
  • Punching
  • Notching: single-edge for SENT specimens (single-edge-notched tension) or double-edge for DENT specimens (double-edged-notch tension) intended for fracture mechanical investigations
  • Thermal and/or media storing or artificial aging

Testing Conditions

  • Testing speed of up to 1250 mm/min
  • Temperature control from -50 °C to 250 °C
  • Defining of temperature regimes
  • Climate control: standard atmosphere (23 °C, 50 % relative humidity)
  • Load range from 5 N to 100 kN
  • Determination of the Poisson’s ratio, also tempered
  • Experiments for short-time creep and short-time relaxation
  • Performing cyclic tests (short-time tests, a few oscillations)
  • Testing, amongst others, of thermoplastics, thermosetting plastics, elastomers, thermoplastic elastomers (TPC, TPU, etc.) as well as films, laminates, foams or fibre-reinforced composites
  • Different clamps appropriate to the requirements

Accredited Standards

  • ISO 37:
    Rubber, Vulcanized or Thermoplastic – Determination of Tensile Stress – Strain Properties
  • DIN EN ISO 527:
    Plastics – Determination of tensile properties
    • Part 1: General principles
    • Part 2: Test conditions for moulding and extrusion plastics
    • Part 3: Test conditions for films and sheets
    • Part 4: Test conditions for isotropic and anisotropic fibre-reinforced plastic composites
    • Part 5: Test conditions for unidirectional fibre-reinforced plastic composites
  • DIN 53457:
    Testing of Plastics – Determination of the Modulus of Elasticity by Tensile, Compression and Flexural Test (Standard withdrawn)
  • DIN 53504:
    Testing of rubber – Determination of tensile strength at break, tensile stress at yield, elongation at break and stress values in a tensile test
  • DIN 65378:
    Aerospace – Fiber reinforced plastics – Testing of unidirectional laminates – Tensile test transverse to fiber direction

Specimen types for the tensile test

  • DIN EN ISO 527-2: type 1A, type 1B, type 1BA, type 1BB, type 5A, type 5B
  • DIN EN ISO 527-3: type 1B, type 2, type 4, type 5
  • DIN EN ISO 527-4: type 1A, type 2, type 3 (without center holes)
  • DIN EN ISO 527-5: type A, type B
  • ISO 37: type 1, type 1A, type 2, type 3, type 4
  • DIN 53504: type S1, type S1A, type S2, type S3, type S3A

Would you like the testing of your samples in accordance to another standard such as DIN EN 2561, DIN EN 2597 or DIN EN ISO 13934-1?

Do you prefer testing according to a company standard or a standard which is not mentioned here?

Then please do not hesitate to contact us. We check for you if we can fulfil the requirements of your standards with our equipment. In addition, we offer to advise you on the testing of construction components or samples that do not conform to the standards.  

Contact

Dipl.-Ing. Heidrun Müller
Telefon: +49 (0)3461 30889-68
heidrun.mueller@psm-merseburg.de

Dipl.-Wirtsch.-Ing. Stephan Arndt
Telefon: +49 (0)3461 30889-68
stephan.arndt@psm-merseburg.de

Quickinfo

Results

  • Elastic modulus, E-modulus Et
  • Poisson's ratio ν
  • Yield stress σy
  • Tensile strength σM
  • Tear strength σM
  • Tensile strain at break εB
  • Tensile stress–tensile strain curve

Standards

  • ISO 37
  • DIN 53504
  • DIN 53457
  • DIN 65378
  • DIN 65469
  • DIN EN ISO 527-1
  • DIN EN ISO 527-2
  • DIN EN ISO 527-3
  • DIN EN ISO 527-4
  • DIN EN ISO 527-5