Question

The failure of the material due to cyclic loads is known as-

• A. Embrittlement
• B. Fatigue
• C. Impact failure
• D. Creep

Answer 1

Answer:

B. Fatigue

Fatigue is the failure of a material due to cyclic loads. It involves cracking of materials and structural components due to cyclic stress. Fatigue cracks can be initiated and propagated at stresses below the yield strength of the material. Embrittlement, impact failure, and creep are not related to cyclic loads. Creep is a time-dependent deformation under a sustained load. Plastic deformation occurs when the material does not regain its initial shape after the applied load is removed. Elastic deformation occurs when the material regains its initial shape after the applied load is removed.