Fibers

This example demonstrates the generation of fibers for use with OpenSees. Begin by creating a standard AISC shape:

import veux
from xsection.library import from_aisc

shape = from_aisc("W14x211", fillet=True, mesh_scale=1)

veux.draw_shape(shape)

<veux.artist.shape.PlaneArtist at 0x1268c9e20>

Next, the create_fibers() method is used to generate fibers. The method generates dictionaries with the following fields:

• "y", "z" the coordinates of the fiber

• "area" the area of the fiber

• "warp" warping shapes and gradients

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
for fiber in shape.create_fibers():
    ax.scatter([fiber["y"]], [fiber["z"]], fiber["area"]*10, marker="s", color='gray')

ax.plot(*shape.exterior().T, color='black')
ax.set_aspect('equal')
ax.axis('off');

veux.ShapeArtist(shape).draw_fibers()