A solid 0.47-in-diameter cold-rolled steel rod is pinned to fixed supports at
A
and
B
. The length of the rod is
L=20
in., its elastic modulus is
E=28000ksi
, and its coefficient of thermal expansion is
\alpha =7.5\times 10^(-6)in
./ in./
\deg F
. Determine the temperature increase
\Delta T
that will cause the rod to buckle. Answer:
\Delta T=

Question

A solid 0.47-in-diameter cold-rolled steel rod is pinned to fixed supports at

A

and

B

. The length of the rod is

L=20

in., its elastic modulus is

E=28000ksi

, and its coefficient of thermal expansion is

\alpha =7.5\times 10^(-6)in

./ in./

\deg F

. Determine the temperature increase

\Delta T

that will cause the rod to buckle. Answer:

\Delta T=

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