Stress-Strain Curve

The delay in regaining the original shape after the removal of stress is called elastic fatigue.

The material which practically does not show elastic after effect is
 

The delay in returning to its original shape by a substance after removing the applied force is called _____.

What is elastic after effect? Mention its application.

A typical stress-strain curve for a wire of a metal wire is shown below:

If the point D and E are very close, the material is:

Permanent set in a material is produced by subjecting it to

Permanent set refers to:

Two blocks of masses $1 \mathrm{kg}$ and $2 \mathrm{kg}$ are connected by a metal wire going over a smooth pulley as shown in the figure. The breaking stress of the metal is $2\times {10}^9 \mathrm{N} {\mathrm{m}}^{-2}$. If the minimum radius of the wire used is $\frac{r}{10}\times {10}^{-5} \mathrm{m}$ so that it is not to break, find the value of $r$. Take, $g=10 \mathrm{m} {\mathrm{s}}^{-2}$.

Highest value of stress for which Hooke’s law is applicable for a given material is called

Stress vs strain for the elastic tissue of the aorta, the large tube (vessel) carrying blood from the heart, will be: [Stress is proportional to square of the strain for the elastic tissue of the aorta]

Now, match the terms in Column I with corresponding terms in Column II.

In stress-strain curve for a metal wire, the limit up to which Hooke's law is valid is known as:

A steel cable with a radius of $1.5 \mathrm{cm}$ supports a chairlift at a ski area. If the maximum stress is not to exceed ${10}^8\hspace{0.17em}\mathrm{N}\hspace{0.17em}{\mathrm{m}}^{-2},$ what is the maximum load the cable can support?

Determine the region where Hooke’s law is obeyed, the ultimate strength point and fracture point in the given stress-strain graph.

Which of the following substance develops high strain when stretched ?

Solids that break above their elastic limit are ____ in nature.

The figure shows the strain-stress curve for a given material. Let $a$ be Young's modulus and $b$ be the approximate yield strength for the material in SI units. The sum $\left(a+b\right)$ is $x\times {10}^8$ $\mathrm{N} {\mathrm{m}}^{-2}$. What is the value of $x$?

Figure show the strain-stress curve for a given material. The young’s modulus of the material is

The strain-stress curves of three wires of different material are shown in the figure. $P, Q, R$ are the elastic limits of the wires, the figure shows that

What happens when the applied load increases and up to breaking stress in the experiment to determine the Young's modulus of elasticity?