What test is used to measure a material's toughness due to impact loading?

The Charpy V-Notch Test is specifically designed to measure the toughness of a material when subjected to impact loading. This test involves striking a notched specimen with a hammer from a predefined height and measuring the energy absorbed by the specimen during fracture. The presence of the notch allows for the evaluation of how much energy the material can absorb before failing, which is indicative of its toughness.

Toughness is a critical property for materials used in construction and structural applications, particularly in environments where sudden impacts or dynamic loads might occur. By assessing toughness through the Charpy test, engineers can better understand how materials will behave under unexpected stress, ensuring safe and reliable designs.

The other tests listed serve different purposes. The Slump Test evaluates the workability and consistency of concrete mixes. The Coupon Test typically assesses the yield and tensile strength of materials. The Split Tension Test is focused on determining the tensile strength of concrete. These tests do not measure toughness in response to impact loading, making the Charpy V-Notch Test the appropriate choice for assessing material toughness.