The curve (The Load elongation) for rabbit tendon tested to failure in tension is given in the figure above. Please describe the behavior of the tendon in each interval.

Explanation:

Elasticity is the tendency of a material to regain its original shape and size after being deformed by an external force. Hooke's law of elasticity state that; provided the elastic limit of a material is not exceeded, the extension is proportional to the force applied.

The given graph shows the elastic property of the rabbit's tendon when a force (load) is applied.

At point 1 on the graph, a given value of load was applied to the tendon. At this point, Hooke's law is obeyed i.e the tendon supports the load.

At point 2, the value of the load was increased and tendon obeys Hooke's law. This implies that as the load is increased, the the tendon was able to support it.

At point 3, a further increase in the value of load causes the elastic limit of the tendon to be exceeded. This means that the tendon would not return to its original shape and size if the load is removed, Hooke's law is no more obeyed.

At point 4, the tendon breaks because it can no longer sustain any value of load.