What is the striking energy used in the Izod Test?

In the Izod test, the striking energy specifically refers to the amount of energy absorbed by a material when a notched specimen is struck by a pendulum. This test is commonly used to measure the impact resistance of materials, particularly metals and plastics. The standard striking energy for the Izod test is 167 Joules, which is based on common test parameters set out in various material testing standards.

This measurement represents the energy needed to fracture the material under test conditions. Having a standardized striking energy allows for consistent and comparable results across different materials and testing conditions, making it easier to evaluate and specify materials for engineering applications.

The choice of 167 Joules is significant as it aligns with the typical requirements in materials testing, ensuring that results can be reliably interpreted. Other values do not correspond to the standard adopted for the Izod impact test, which is why they are not applicable in this context.