Question

The hoop tension force ($F_h$) per metre (kg) exerted on a cylindrical silo wall is given by:

• A. $F_h = P_tr$
• B. $F_h = 2P_tr$
• C. $F_h = P_t/2r$
• D. $F_h = P_t^2r$

Hint:

Always use $F_h = P_tr$ for hoop tension in cylindrical walls under uniform internal pressure to ensure accurate design.

Answer 1

The Correct Option is A

The hoop tension in a cylindrical silo wall is calculated using the formula:
\[F_h = P_tr,\]
where:
$P_t$ is the pressure acting on the wall,
 $r$ is the radius of the cylindrical silo.
This formula is derived from the balance of forces in a circular section of the cylindrical wall.