ASTM F1160 Standard Test Method for Shear and Bending Fatigue Testing of Calcium Phosphate and Metallic Medical and Composite Calcium Phosphate/Metallic Coatings;

Rotating beam fatigue testing generates higher frequencies than traditional high cycle fatigue (HCF) methods. UnitedTest testing services provide critical data about coatings and metallic surface treatments to ISO 1143, ASTM F1160 standards. 

Rotating beam fatigue testing, Shear and Bending Fatigue testing. 

Rotating beam fatigue testing is a mechanical test method used to evaluate the fatigue properties of materials. In this test, a beam specimen is subjected to cyclic loading, which induces repeated bending causing failure over time. The specimen is mounted on a rotating apparatus, which allows for the cyclic load to be applied at constant amplitude and frequency.

During the test, the beam specimen is rotated at a constant speed while a loading force is applied to it. The force causes the beam to bend, and as the beam rotates, it undergoes cyclic bending stress that can induce fatigue failure.

The data generated can be used to design and optimize materials for use in applications where fatigue failure is a concern, such as the Aerospace and Automotive industries.

Shear and bend fatigue testing determines the coating’s adhesive or cohesive properties. Bend fatigue testing also provides information on the effects of the coating on the metallic substrate.

ASTM F1160 Equipment and Sample Preparation

Specimen Details: The ASTM F1160 specimens used are calcium phosphate metallic, or composite coatings containing calcium phosphate and metallic layers.

Specimen dimensions: The acceptable specimen size varies with the testing requirements.

Specimen Preparation: The ASTM F1160 specimens are cleaned and prepared as per requirements.