《GB/T 28896-2023 Test method for determination of quasi-static fracture toughness of welded joints in metallic materials》is a national standard of China that specifies the test method for determining the fracture toughness of welded joints in metallic materials.
This standard provides guidelines for conducting quasi-static fracture toughness tests on welded joints, which are critical in assessing the structural integrity and safety of welded structures. The test method outlined in this standard involves applying a steady load to the specimen and measuring the fracture toughness parameter, such as crack growth resistance, critical crack tip opening displacement, or critical stress intensity factor.
The test procedure described in this standard includes specimen preparation, test equipment calibration, test specimen loading, recording of load-displacement data, and calculation of fracture toughness values. It also covers requirements for specimen dimensions, testing temperature, and loading rate to ensure accurate and reliable test results.
The use of this standard enables engineers and researchers to evaluate the fracture resistance of welded joints and make informed decisions regarding the design, fabrication, and maintenance of welded structures. It provides a standardized approach for conducting fracture toughness tests, allowing for better comparison and interpretation of test results.
Overall, the implementation of this standard contributes to the improvement of welding technology and enhances the safety and performance of welded structures in various industries, such as automotive, aerospace, and construction.
GB/T 28896-2023 history
2023GB/T 28896-2023 Test method for quasi-static fracture toughness of welded joints of metallic materials
2012GB/T 28896-2012 Metallic materials.Method of test for the determination of quasistatic fracture toughness of welds