ASTM E1820 Standard Specification for Measurement of Fracture Toughness

EUROLAB laboratory provides testing and compliance services within the scope of ASTM E1820 standard. The ASTM E1820 test determines the fracture toughness of metals using the parameters K, J, and crack tip opening displacement (CTOD).

Fracture toughness is calculated by taking a notched, fatigued, pre-cracked sample and using a double cantilever to push the two sides of the notch away from each other. This allows our technicians to observe how the sample is divided.

There are three possibilities for how the sample may be split: fracture instability resulting in a single point value of fracture toughness, stable rupture resulting in an R-curve, and stable rupture interrupted by fracture instability resulting in an R-curve. ends at the point of instability.

These values ​​can be used for yield strength, selection and quality assurance and material comparison. They can also help set a standard for structural defect assessment.

Values ​​stated in SI units or inch-pound units will be considered individually as standard. Values ​​specified in each system may not be exactly equivalent; therefore, each system should be used independently of the other.

This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory restrictions prior to use.

EUROLAB assists manufacturers with ASTM E1820 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.