Answer:
Step-by-step explanation:
A) we know that volume is given as V

where D = 1.5 in , h = 2.0 in
so


yield strenth is given as


b)
elastic strain

strain offsets = 0.00264 + 0.002 = 0.00464 [where 0.002 is offset given]



area

True strain

At P= 260,000 lb ,

true stress

true strain

flow curve is given as \sigma = k\epsilon^n


so flow curve is
.........1
.........2
Solving 1 and 2
we get
n = 0.103
and K =137,389 psi
Strength coffecient = K = 137.389ksi
strain hardening exponent = n = 0.103