IZOD TEST

An Izod Impact Tester is a device used to measure the impact strength or toughness of a material. The main components of an Izod Impact Tester typically include:

• Pendulum: The pendulum is a swinging weight that acts as the striking element in the impact test. It is usually a heavy metal arm with a defined mass and length. The pendulum is lifted to a specific height and released to strike the test sample.

• Striking Edge: The pendulum is equipped with a striking edge, also known as the hammer or striker. This edge contacts the test specimen and delivers the impact force during the test. The striking edge is typically made of hardened steel to ensure consistent and accurate results.

• Anvil: The anvil is a solid support or base on which the test specimen is placed. It provides stability and a fixed reference point for the impact test. The anvil is designed to withstand the impact force without deformation.

• Sample Holder: The sample holder or clamping mechanism secures the test specimen in a fixed position during the impact test. It ensures that the sample is properly aligned and positioned for accurate impact force application.

• Depth Scale: The depth scale is a measuring device or ruler attached to the Izod Impact Tester. It measures the depth of the notch created in the test specimen by the striking edge. The depth of the notch is an important parameter used to calculate the impact energy.

• Release Mechanism: The release mechanism is responsible for releasing the pendulum and allowing it to swing freely to strike the test specimen. It can be manually operated or automated, depending on the design of the Izod Impact Tester.

• Measurement and Display System: Izod Impact Testers are equipped with a measurement and display system to capture and present the test results. This system may include a digital display that shows the energy absorbed by the specimen during impact. Some testers also provide the ability to capture and store test data for further analysis.

• Safety Features: Izod Impact Testers often incorporate safety features to protect the operator during testing. This may include safety shields or enclosures to prevent contact with moving parts, emergency stop buttons, and other safety mechanisms to ensure safe operation.

It's important to note that the exact design and configuration of an Izod Impact Tester can vary among different models and manufacturers. Some advanced models may include additional features or automation capabilities to enhance testing accuracy, efficiency, and data analysis. 

How the Izod Impact Test Works

The Izod impact test fixes one end of a notched specimen in a cantilever position by means of a vice. A striker on the arm of a pendulum or similar energy carrier then strikes the specimen. The energy absorbed by the specimen in the breaking process is known as the breaking energy. The breaking energy can be converted into an indication of a materials impact resistance using such units as foot-pounds or joules.