Compact tension specimen

A compact tension specimen is a notched sample and is a standard specimen in accordance with ASTM and ISO standards. The purpose of using a notched sample is to create a fatigue crack by cycling the sample to maximum and minimum loads. The fatigue crack will begin on the point of the notch and extend through the sample, the fatigue crack is a good representation of 'real life' inconsistencies which are introduced to a material due to processing techniques or welding. CT specimens are used extensively in the area of fracture mechanics and corrosion testing, in order to establish fracture toughness and fatigue crack growth data for a material. A compact tension specimen is a notched sample and is a standard specimen in accordance with ASTM and ISO standards. The purpose of using a notched sample is to create a fatigue crack by cycling the sample to maximum and minimum loads. The fatigue crack will begin on the point of the notch and extend through the sample, the fatigue crack is a good representation of 'real life' inconsistencies which are introduced to a material due to processing techniques or welding. CT specimens are used extensively in the area of fracture mechanics and corrosion testing, in order to establish fracture toughness and fatigue crack growth data for a material.