Consider a circular hollow section, with outer diameter dD (in mm), and thickness tD (in mm). The circular hollow sectio

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Consider a circular hollow section, with outer
diameter dD (in
mm), and
thickness tD (in
mm).
The circular hollow section is made from aluminium which has a
density of 2700 kg/m3 and a shear
modulus G = 30000 MPa.
Part D
dD = 170 mm
tD = 7.5 mm
Consider a circular hollow section, with outer
diameter dD (in
mm), and
thickness tD (in
mm).
The circular hollow section is made from aluminium which has a
density of 2700 kg/m3 and a shear
modulus G = 30000 MPa.
Part D
dD = 170 mm
tD = 7.5 mm
The new CHS (ie the one made from steel with the larger
thickness), is now filled with concrete which has density 2450
kg/m3 . What is the mass per unit length of
the concrete filled CHS (in kg/m)?