Open Source 'Fyber' Analysis Tool for Moment Curvature.
- Ensure you have MS build tools for MeshPy
- Initialize Poetry project
poetry init
- Add directly from repo url
poetry add git+https://github.com/NathanaelRea/OSFyber
from osfyber.materials import (
ConfinedConcreteProps,
ConfinedPressureCircleProps,
SteelProps,
UnconfinedConcreteProps,
conf_pressure_circle,
)
from osfyber.system import (
CircleGeometryProps,
FyberModel,
LoadProps,
ReinforcementProps,
)
model = FyberModel()
# Set Materials
unconfined_concrete = model.add_material_concrete(
UnconfinedConcreteProps(fpc=5.2, ecp=-0.002, ecu=-0.005)
)
fple = conf_pressure_circle(
ConfinedPressureCircleProps(fyh=68, bar_number=4, D=31.5, s=3)
)
confined_concrete = model.add_material_confined_concrete(
ConfinedConcreteProps(fpc=5.2, fple=fple)
)
steel = model.add_material_steel(
SteelProps(E=29565, fy=68, fsu=95, e_sh=0.0125, e_su=0.09, P=2.8)
)
# Set geometry
model.add_geometry_circle(unconfined_concrete, CircleGeometryProps(D=36, c=(0, 0)))
model.add_reinforcement_circle(
steel,
CircleGeometryProps(D=29.5, c=(0, 0)),
ReinforcementProps(bar=9, count=12, conf_material=confined_concrete),
)
# Add loading (positive is compression)
model.set_load(LoadProps(P=1000))
# Generate mesh
model.generate_mesh()
# Check input
# model.display_materials()
# model.display_mesh()
model.analyze()
model.display_mc()
# model.display_mc_2x2()
# save results
# model.export_results()Output from analyze():
Analysis ended at phi=0.0017
Failure: Confined Concrete Crushing
Max Available Strain=-0.01432
Strain Experienced=-0.01512
Mat_id=2
Location=[3.281, 13.664]
Fully Interactive Moment Curvature Diagram. Ability to step through process of degradation. Can also click on a mesh to see internal properties. Can use Mouse on either plot to view (x,y) values in bottom right.
Output from display_mc():
You can click on the mesh to view stress strain plot at that step:
