Torsion Constant for Rectangle Cross-section

on . Posted in Classical Mechanics

   

torsion constant rectangle 1

Torsion Constant for Rectangle Cross-section formula

\( J = a\;b^3 \left[ \frac{1}{3} - 0.21 \; \frac{b}{a} \; \left(1- \frac{b^4}{12\;a^4} \right)  \right]  \) 
Symbol English Metric
\( J \)  (Greek symbol alpha) = torsion constant \(in^4\) \(mm^4\)
\( a \) = length of long edge of an rectangle \(in\) \(mm\)
\( b \) = length of short edge of an rectangle \(in\) \(mm\)

 

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Tags: Strain and Stress Torsion