Hi people, i am in the process of designing a timber beam to eurocode 5, for university. One of the formulas used to calculate a critical factor, requires the value of torsional moment of inertia, and i have looked everywhere and cant find it. The shape of the beam is rectangular and as i say, the formula i need requires this particular value, i dont know if it is called something else but can anyone help???
2006-11-21 06:52:35 · 2 answers · asked by Tom1983 1 in Science & Mathematics ➔ Mathematics
Just search for 'moment of inertia'. There are plenty of tables that show a square beam. If it is offset, you can use the parallel axis theorem.
2006-11-21 06:59:13 · answer #1 · answered by Andy M 3 · 2⤊ 0⤋
Posting this in engineering might be a better idea.
Also, look here:
Torsional Moment of Inertia of Various Sections
http://www.ecs.umass.edu/mie/labs/mda/dlib/ref/section_t.html
2006-11-21 06:55:43 · answer #2 · answered by modulo_function 7 · 0⤊ 0⤋