Strain energy is typically stored in a material when it is subjected to:

The unit of strain energy is:

Strain energy is a measure of:

Proof resilience is defined as:

Modulus of resilience is the proof resilience per unit:

The modulus of resilience is expressed in the unit:

Which material property is directly related to the modulus of resilience?

The strain energy stored in a bar under axial load is given by:

For a bar under axial tension, strain energy depends on:

If the axial load on a bar is doubled, the strain energy stored will:

The strain energy in a bar is zero when:

When a load is applied suddenly to a bar, the instantaneous stress is:

For a sudden load, the instantaneous stress is calculated as:

In an impact load, the stress depends on:

The instantaneous stress due to an impact load is generally:

A bar with cross-sectional area 100 mm² is subjected to a sudden load of 10 kN. What is the instantaneous stress?

A bar of length 1 m, area 50 mm², and E = 200 GPa is subjected to a sudden load of 5 kN. What is the deformation?

A weight of 2 kN falls from a height of 0.1 m onto a bar with A = 100 mm² and E = 100 GPa. The instantaneous stress is approximately (assume basic impact formula):

A bar under an impact load of 10 kN with h = 0.05 m, A = 200 mm², L = 1 m, and E = 200 GPa has a deformation of approximately: