Impact loading         

a) Types of loading

i) Static load: applied slowly, so that it causes no vibrational or dynamic effects

ii) Dynamics load

(1) Impact load: loads are applied and removed suddenly

(a) two objects collide

(b) falling object strikes a structure

(2) Fluctuating load: persist for long periods of time and continuously vary in intensity

(a) rotating machinery, traffic, wind gusts, water waves, earthquakes, and manufacturing processes

Analysis of Impact load

iii)

Solving the above equation for positive root

vi) Maximum Stress in the Bar