Stress relaxation is the phenomenon

A In which parts are not loaded
B In which stress remains constant on increasing load
C In which deformation tends to loosen the joint and produces a stress reduced
D Stress reduces on increasing load

Correct Answer: In which deformation tends to loosen the joint and produces a stress reduced

Stress relaxation is a gradual reduction in stress with time at constant strain.
Stress relaxation occurs in polymers when they are held in a strained state for long periods of time.
These alloys have very good resistance to stress relaxation and are therefore used as spring materials.
Bissoy MCQ
#Mechanical Engineering #Engineering Materials

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