ISO 179-1 How to Run a Charpy Pendulum Impact Test
The ISO 179-1 standard defines the method used to determine plastics’ resistance to impact. The Charpy impact test is conducted in a three-point bend configuration, using a pendulum impact testing machine with an appropriately sized hammer arm. The test is uninstrumented and is used to determine the energy required to break the specimen.
While similar to ISO 179-1, ASTM D6110 (Charpy Impact Resistance of Notched Plastic Specimens) defines tests that are substantially different from the Charpy ISO 179-1 method. The two standards are, therefore, not interchangeable.
Different test parameters are specified according to the type of material that the specimen is made of as well as the type of notch cut in it.
Charpy Pendulum Impact Testers Key Raccomandations:
The Instron CEAST 9050 Impact Pendulum enables you to meet the requirements of the ISO 179-1 standard. Available in either manual or motorized version, the CEAST 9050 pendulum impact system also comes with a specimen support vice, properly sized shoulders, and impact hammers.
To get a full understanding of the material’s reaction to impact when exposed to sub-ambient temperatures we also recommend the inclusion of our Cryobox.
For specimen preparation we recommend either our Motorized Notchvis or Automatic notcher, which, together with the correct knife, will allow you to notch samples correctly, according to the Charpy ISO 179-1 test standard.
To fully understand the test set-up, procedure, results and specimen preparation requirements, please refer to the standard.
Impact resilience is one of the most important properties and cost-effective evaluations for material producers, both with respect to product development and quality control. As components could fail at stress levels well below the critical fracture stress, accurate determination of impact damage propagation is necessary. With the combined experience of CEAST, Instron® has more than 50 years experience in designing pendulum impact testing systems.
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Accessories for CEAST Drop Tower and Pendulum Impact Testers.
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The new CEAST DAS 64K is a state-of-the-art Data Acquisition System designed for impact testing instruments. Compatible with the full range of CEAST impact testing systems, including pendulum type machines (CEAST 9000 Series) and drop towers (CEAST 9300 Series), it’s the key for instrumented impact testing. The DAS 64K also enables the data collection from instrumented tups or hammers on older models and non-CEAST impact machines.
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