Ensure Better Performance of Materials with Impact Resistance Testing

Ensure Better Performance of Materials with Impact Resistance Testing

Impact testing is one of the most important requirements estimating the quality of the products and materials that are being used in different industries. The manufacturers can ensure better performance of products with the help of impact testing. Basically, impact testing gives an analysis of the level of mechanical impact that a material can bear without failure of deformation. In industries, there two different impact test procedures used to determine the impact resistance of different materials. One is IZOD test and the other is Charpy test.

Charpy Impact Testing

In Charpy Impact testing the apparatus has a heavy weight pendulum which is dropped from a height and makes contact with the test specimen. The energy transferred to the test specimen after the testing procedure is calculated through the difference in the height of the pendulum before and after the fracture. The specimen used for this procedure is of size 55 X 10 X 10 cm. The notch in the specimen can be V shaped or U shaped. The notch is placed facing away from the pendulum to assist the concentration of stress and encouraging fracture. The users can perform the test at the ambient temperature and also at reduced temperature.

IZOD Impact test

IZOD impact test procedure is similar to the charpy impact tests except the fact that the specimen has a different orientation. The Specimen is clamped in a horizontal position facing towards the pendulum. The pendulum is made to contact the specimen at a specific area just above the notch. IZOD impact testing procedure can be performed at both plastic and metallic specimens. The plastic specimen has a size of 64 X 12.7 X 3.2 mm while the metallic specimen has a size of 127 X 11.43 mm. Both plastic and metallic samples have machines V shaped notches.

The common international standards followed for IZOD and Charpy Impact test include ASTM D256, ASTM E23, and ISO 180, ASTM E23, ASTM A370, ISO 148, or EN 10045-1.

With the help of these impact tests, the manufacturers can study the strength and toughness of materials and decide whether they are appropriate for a particular operation of not. The IZOD Charpy Tester is the apparatus that is used for performing these tests which is easy to operate and designed in compliance with the international quality testing standards to ensure better accuracy of test results. Manufacturers can easily ensure better performance of their products when they have tested their materials for impact resistance with right apparatus and great accuracy.