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Tensile testing, also known as tension testing, [1] is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength , breaking strength , maximum elongation and reduction in area. [ 2 ]
Schematic and dimensions of a compact tension specimen. A compact tension specimen ( CT ) is a type of standard notched specimen in accordance with ASTM [ 1 ] and ISO [ 2 ] standards. Compact tension specimens are used extensively in the area of fracture mechanics and corrosion testing, in order to establish fracture toughness and fatigue crack ...
The success of a biaxial tensile test is strictly related to the shape of the specimen. [17] The two most used geometries are the square and cruciform shapes. Dealing with fibrous materials or fibres reinforced composites , the fibres should be aligned to the load directions for both classes of specimens, in order to minimize the shear stresses ...
According to ASTM A370, [12] the standard specimen size for Charpy impact testing is 10 mm × 10 mm × 55 mm. Subsize specimen sizes are: 10 mm × 7.5 mm × 55 mm, 10 mm × 6.7 mm × 55 mm, 10 mm × 5 mm × 55 mm, 10 mm × 3.3 mm × 55 mm, 10 mm × 2.5 mm × 55 mm. Details of specimens as per ASTM A370 (Standard Test Method and Definitions for ...
ASTM A992 steel has the following minimum mechanical properties, according to ASTM specification A992/A992M. Tensile yield strength, 345 MPa (50 ksi); tensile ultimate strength, 450 MPa (65 ksi); strain to rupture (sometimes called elongation) in a 200-mm-long test specimen, 18%; strain to rupture in a 50-mm-long test specimen, 21%.
One example is the long used Sustained Load Test of notched round bar tensile specimens found in ASTM F 519. In this test, the exposed test specimens are subjected to a load equal to 75% of the Fracture Strength and held for 200 hours. If the specimen does not break, the specimen has passed. If it fractures prior to the 200 hours then it has ...
This test is performed on a universal testing machine (tensile testing machine or tensile tester) with a three-point or four-point bend fixture. The main advantage of a three-point flexural test is the ease of the specimen preparation and testing.
The ultimate tensile strength of a material is an intensive property; therefore its value does not depend on the size of the test specimen.However, depending on the material, it may be dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.