PIPE FILLED WITH CONCRETE
PIPE FILLED WITH CONCRETE
(OP)
I am trying to find some information on how a pipe that is filled with concrete will affect it's strength with relation to bending. How will filling a pipe affect it's moment of Inertia?





RE: PIPE FILLED WITH CONCRETE
Cheers
Greg Locock
RE: PIPE FILLED WITH CONCRETE
RE: PIPE FILLED WITH CONCRETE
Section Modulus, S=I/c (in in^3)
Flexural strength (yield stress), Fy, (A-36 is a common steel, it happens to have 36,000 PSI yield stress)
Compare Moment ( M = S x Fy ) of pipe against that of composite section to see impact (watch your units).
RE: PIPE FILLED WITH CONCRETE
Cheers
Greg Locock
RE: PIPE FILLED WITH CONCRETE
When a bending force is applied to the pipe, the concrete will lose compressive stress instead of going into tension on the outside of the bend. You'll have to make sure you're not overstressing the pipe, particularly if there are any cyclic loads involved, as fatigue in metals needs a tensile force to begin.