Relaxation test frame
Equipment
Relaxation is the loss of stress in a material kept under constant elongation. The image describes a self-straining unit developed by the Department of Civil Engineering, IIT Madras. A steel wire is kept stressed under a constant elongation and the decrease in stress with time, is measured with a tension load cell and manual compensating bridge. The uniqueness of this equipment lies in the constant elongation that is maintained with screws and nuts. The material used in the load cell for measuring strain does not possess any time dependent property.
Collection:
Central Photographic Section Collection
Album Name:
Photograph ID:
001/0040/IMG_1205_1
Album ID:
Date:
January 1976
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