Impact Testing

Mechanical Tests

Impact Testing

The impact test determines the amount of energy absorbed by a material during breakage and gives information about its durability. The notched bar sample is subjected to the impact caused by the striker of a pendulum (known as the Charpy pendulum). According to the standards, the notch may be different for geometry (V-shape or U-shape). The sample should be multiplied by the striker on the opposite side of the notch.

Impact Testing

The energy transferred to the material can be removed by comparing the difference in the height of the breaker before and after the break and shows the material's ability to withstand breaking. Post-fracture inspection allows to evaluate the ductility shown by the material. Therefore, the lateral expansion occurring at the opposite end of the plane of the fracture is measured and the appearance of the fracture is examined (and the cutting area is determined). In this way it is possible to get information about the ductile or fragile nature of the fracture.

The Charpy impact test is normally done on three samples and is deeply affected by the test temperature. Samples can also be tested at a very low temperature (eg -196 ° C), placing them in a chamber bath and using liquid nitrogen.

BASE MATERIAL, METALLIC MATERIAL SOURCE

  • ASTM A370-14, paragraph Charpy Impact Test (accredited)
  • ASTM E23-12c (accredited)
  • ISO 148-1: 2009, E (accredited)
  • DIN 50115 1991, 2004 (accredited)
  • EN 10045-1: 1990 (accredited)

METALLIC MATERIAL SOURCE

  • ISO 9016: 2012 (accredited)
  • EN 875: 1995 (accredited)
  • ASME IX QWW-170, 2013 (accredited)
  • EN 10045-1: 1990 (accredited)
  • EN ISO 15614-1: 2004 / A2: 2012, paragraph 7.4.5 (accredited)

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