1.

What is an elastomer's ? Plot stress to strain curve for it and explain.

Answer»

Solution :"Materials which can be stretched to cause large values of strain are called elastomers".
For examples: RUBBER, the elastic tissues of aorta.
Rubber can be pulled to several times its length and still returns to its ORIGINAL shape.

In figure, STRESS `to` strain curve for the elastic tissue of aorta, the large tube (vessel) carrying BLOOD from the heart.
Note here that elastic region is very large, the material does not obey Hooke.s law over most of the region. Secondly, there is no well defined plastic regiun.


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