Properties of plane area: Hollow rectangle
1
Perimeter of section: outside:
3
Torsional inertia constant:
4
Torsional section modulus: elastic:(1)
5
Torsional section modulus: plastic:
6
Torsional shape factor: plastic/elastic:
7
Second moment of area:
8
Section modulus: elastic:
9
''
Section modulus: plastic:
10
Shape factor: plastic/elastic:
11
Shear factor: approximated:
12
Shear effective area:
(1): does not account for peak stresses at inside corners