Curved Beam Torsion - Blodgett
Curved Beam Torsion - Blodgett
(OP)
thread507-147144: Curved beam analysis
Can anyone verify the formulae in the back of Blodgett for torsional moment for a beam curved in plan subject to a uniform load.
I cannot seem to get the same values for A and B listed in the table using the provided formula. α seems to be in degrees, but I cannot get the numbers.
Can anyone verify the formulae in the back of Blodgett for torsional moment for a beam curved in plan subject to a uniform load.
I cannot seem to get the same values for A and B listed in the table using the provided formula. α seems to be in degrees, but I cannot get the numbers.
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RE: Curved Beam Torsion - Blodgett
What is interesting in the quote above is that the torsor at fixed ends (flector as well) depend on the mechanical properties of the section, hence the table will have been made for a set of sections for which the relative rigidities keep quite constant along the series of shapes.
Respect the formula I have tried once and didn't meet the result but may do it again later.
RE: Curved Beam Torsion - Blodgett
Note that the above is referenced from the last page of my copy of "Design of Welded Structures," Blodgett, 15th printing, 1996. Yours may not have the tabulated error in it...
Also, you can work these problems using "Roark's Formulas for Stress and Strain." In my 6th edition copy, the correct formulas can be found in Table 19, Case 1e.
-5^2 = -25
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RE: Curved Beam Torsion - Blodgett
RE: Curved Beam Torsion - Blodgett
We are Virginia Tech
Go HOKIES