What distinguishes Izod and Charpy impact tests?

The key distinction between Izod and Charpy impact tests lies in the specimen's orientation and support. In the Izod test, the specimen is clamped vertically, while in the Charpy test, it's supported horizontally. This difference affects the stress distribution upon impact, leading to variations in results. Additionally, the Charpy test typically uses higher impact velocities, making it more suitable for materials with higher toughness, whereas the Izod test is preferred for brittle materials. Both tests assess a material's ability to absorb energy under sudden impact, crucial for evaluating its resilience and suitability for various applications in engineering and construction.

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