Properties of plane area: Hollow circle
1
Perimeter of section: outer:
3
Torsional inertia constant:
4
Torsional section modulus: elastic:
5
Torsional section modulus: plastic:
6
Torsional shape factor: plastic/elastic:
8
Section modulus: elastic:
9
Section modulus: plastic:
10
Shape factor: plastic/elastic: