i_section

sectionproperties.pre.library.steel_sections.i_section(d: float, b: float, t_f: float, t_w: float, r: float, n_r: int, material: Material = Material(name='default', elastic_modulus=1, poissons_ratio=0, yield_strength=1, density=1, color='w')) → Geometry

Constructs an I section.

Constructs an I section centered at (b/2, d/2), with depth d, width b, flange thickness t_f, web thickness t_w, and root radius *, using ``n_r points to construct the root radius.

Parameters:

• d (float) – Depth of the I section

• b (float) – Width of the I section

• t_f (float) – Flange thickness of the I section

• t_w (float) – Web thickness of the I section

• r (float) – Root radius of the I section

• n_r (int) – Number of points discretising the root radius

• material (Material) – Material to associate with this geometry

Returns:

I section geometry

Return type:

Geometry

Example

The following example creates an I section with a depth of 203 mm, a width of 133 mm, a flange thickness of 7.8 mm, a web thickness of 5.8 mm and a root radius of 8.9 mm, using 16 points to discretise the root radius:

from sectionproperties.pre.library import i_section

i_section(d=203, b=133, t_f=7.8, t_w=5.8, r=8.9, n_r=16).plot_geometry()

(Source code, png, hires.png, pdf)

I section geometry