1. A rod has 2.5m long and cross-sectional area 1290 mm2
have been elongation 1.5m when subjected to tensile load 142 kN. Calculate
the:-
i)
Stress of the rod
ii)
Strain
iii)
Young’s Modulus
iv)
Safety factor if the
ultimate stress is 432 MN/m2
2. An aluminium bar
with Poisson ratio 0.65 and longitudinal strain, ɛx = 1.35,
determine the modulus of elasticity and lateral strain for the bar, if the
stress applied to the bar is 85MN/m2.
