The figure shows a proposed design for the upper section of an axisymmetric cooling tower, which is to be made of concrete of density 2300 kg/m^3.

Find the minimum value of the shell thickness t if the tower must be capable of sustaining an internal pressure 2kPa at A and 5kPa at B without inducing tensile membrane stresses at these points. With your choice of t, do you expect there to be tensile stresses elsewhere in the tower and if so where?

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## sel ma90 0

Hello !

Please I need your help to solve this homework.

The figure shows a proposed design for the upper section of an axisymmetric cooling tower, which is to be made of concrete of density 2300 kg/m^3.

Find the minimum value of the shell thickness t if the tower must be capable of sustaining an internal pressure 2kPa at A and 5kPa at B without inducing tensile membrane stresses at these points. With your choice of t, do you expect there to be tensile stresses elsewhere in the tower and if so where?

Thank you

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