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2D_example_0.py
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2D_example_0.py
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# Import steelpy modules
from steelpy import Units
from steelpy import UFOmodel
from steelpy import Trave2D
from steelpy import Trave3D
#
#
units = Units()
#
f2umodel = UFOmodel("2D_example_0")
#
#
# ----------------------------------------------------
# ----------------------------------------------------
# Mesh
# ----------------------------------------------------
# ----------------------------------------------------
#
mesh = f2umodel.mesh()
#
mesh['2D'] = '2D example'
#
# ----------------------------------------------------
# Material input
# ----------------------------------------------------
# [elastic, Fy, Fu, E, G, Poisson, density, alpha]
mesh['2D'].material([[10, 'linear', 345.0 * units.MPa, 490.0 * units.MPa, 200 * units.GPa],
[15, 'linear', 245.0 * units.MPa, 490.0 * units.MPa, 200 * units.GPa]])
#
material = mesh['2D'].material()
print(material)
#
#
# ----------------------------------------------------
# Section Input
# ----------------------------------------------------
#
mesh['2D'].section([[15, 'rectangle', 8 * units.inch, 4 * units.inch],
[20, 'ub', 240*units.mm, 6.2*units.mm, 120*units.mm, 9.8*units.mm],
[25, 'Tubular', 300 * units.mm, 10 * units.mm]])
#
print(mesh['2D'].section())
#
#
# ----------------------------------------------------
# Node input
# ----------------------------------------------------
#
storeyBase = 0.0 * units.m
storeyHeight1 = 6.0 * units.m
storeyHeight2 = 3.0 * units.m
bayWidth = 4.0 * units.m
#
# nodes coordinates [node_id, x, y, z=0, boundary=None]
#
mesh['2D'].node([(1, storeyBase, storeyBase), #, 'pinned'
(2, storeyBase, storeyHeight1),
(3, bayWidth, storeyHeight2),
(4, bayWidth, storeyBase)]) # , 'fixed'
#
print(mesh['2D'].node())
#
#
# ----------------------------------------------------
# Element input
# ----------------------------------------------------
#
# Example:
# Elements[number] = [beam, node1, node2, material, section, roll_angle=0, ecc1, ecc2]
# Elements[number] = [plate, node1, node2, node3, node4, material, section, ]
#
#
mesh['2D'].element([(1, 'beam', 1, 2, 10, 15, 0),
(2, 'beam', 2, 3, 15, 20, 0),
(3, 'beam', 3, 4, 10, 25, 0)])
#
beams = mesh['2D'].element().beam()
print(beams)
#
#
# ----------------------------------------------------
# boundary Input
# ----------------------------------------------------
#
# [boundary_id, support, node_id, type[restrain|spring], fixity] # global
# [boundary_id, node_id, type, fixity, translation|(beam|local), dircos|beam_id] # local
#
#mesh['2D'].boundary([{'name': 1, 'support': 1, 'restrain': 'pinned'},
# {'name': 2, 'support': 4, 'restrain': 'fixed'},
# {'name': 3, 'support': 4, 'restrain': 'slide', 'translation': beams[3].dircos}])
#
# [1, 'node', 3, spring, [kx,ky,kz,krx,kry,krz]]
#
mesh['2D'].boundary([[1, 'support', 1, 'restrain', 'pinned'],
[2, 'support', 4, 'restrain', 'fixed']])
#[3, 'beam', 3, 'node', 2, 'support', 'slide']])
#
print(mesh['2D'].boundary())
#
# ----------------------------------------------------
# Load input
# ----------------------------------------------------
#
#
# ----------------------------------------------------
# Basic Load (global system default)
#
# loading
load = mesh['2D'].load()
#
# load.basic.system = 'local' # This will affect beam load only (global default)
#
#
# load numbering is automatic (consecutive)
# load.basic([[load_title, 'node', node_id, 'point', x,y,z,mx,my,mz, comment(optional)],
# [load_title, 'node', node_id, 'mass' , x,y,z, comment(optional)]
# [load_title, 'beam', beam_id, 'line' , qx0,qy0,qz0, qx1,qy1,qz1, L0,L1, comment(optional)],
# [load_title, 'beam', beam_id, 'point', L0,x,y,z,mx,my,mz, comment(optional)]])
#
#
Pnull = 0 * units.N
Lnull= 0 * units.N / units.m
Punit = units.kN
Munit = units.kN * units.m
Lunit = units.N/units.m
#
#load.basic([['wind load', 'node', 2, 'load', 400 * Punit, Pnull, Pnull, 100 * Munit, 100 * Munit, 'nodex_1'],
# ['wind load', 'node', 3, 'load', -200 * Punit, 'nodex_2'],
# ['snow load', 'beam', 2, 'line', Lnull, -50_000 * Lunit, 20_000 * Lunit, 'udly_1'],
# ['snow load', 'beam', 3, 'line', Lnull, -50_000 * Lunit, 20_000 * Lunit, 'udly_2'],
# ['snow load', 'beam', 1, 'point', 3* units.m, 10 * Punit, 'point_1']])
#
#print(basic)
#
basic = load.basic()
#
#basic.node([['wind load', 2, 'load', 400 * Punit, Pnull, Pnull, 100 * Munit, 100 * Munit, 'nodex_3'],
# ['wind load', 3, 'load', -200 * Punit, 'nodex_4']])
#
#
basic.beam([['snow load', 2, 'line', 1.5* units.m, Lnull, -50_000 * Lunit, 20_000 * Lunit, 'udly_3']])
# ['snow load', 3, 'line', Lnull, -50_000 * Lunit, 20_000 * Lunit, 'udly_4'],
# ['snow load', 1, 'point', 3* units.m, 10 * Punit, 'point_2']])
#
#
#basic.nodal([['gust load', 2, 'load', 400 * Punit, Pnull, Pnull, 100 * Munit, 100 * Munit, 'nodex_5'],
# ['gust load', 3, 'load', -200 * Punit, 'nodex_6']])
#
#
#basic.beam([['car load', 2, 'line', Lnull, -50_000 * Lunit, 20_000 * Lunit, 'udly_5'],
# ['car load', 3, 'line', Lnull, -50_000 * Lunit, 20_000 * Lunit, 'udly_6'],
# ['car load', 1, 'point', 3* units.m, 10 * Punit, 'point_3']])
#
print(basic)
#
#for key, items in basic.items():
# key, items
# for key2, items2 in items.node().items():
# key2, items2
# for items3 in items2.load:
# print(items3)
#
#
# ----------------------------------------------------
# Meshing
# ----------------------------------------------------
#
#
mesh.build()
#
print("Nodes")
nodes = mesh['2D'].node()
nodedf = nodes.df
print(nodedf)
#
print("boundaries")
bds = mesh['2D'].boundary()
bdsdf = bds.df
print(bdsdf)
#
print("Elements")
elements = mesh['2D'].element()
elementsdf = elements.df
print(elements)
#
print("Load")
loadm = mesh['2D'].load()
basicLoad = loadm.basic()
bl_nodedf = basicLoad.node().df
print(bl_nodedf)
#
beamload = basicLoad.beam()
bl_bpointdf = beamload.point.df
print(bl_bpointdf)
bl_blinedf = beamload.line.df
print(bl_blinedf)
#
#
#bload = loadm.beams().df
#
# mesh.to_excel()
#
# ----------------------------------------------------
# Plotting
# ----------------------------------------------------
#
# Structure
#
#plot = mesh.plot()
#plot.frame()
#plot.material()
#plot.section()
#
# Loading
#
#plotload = load.plot()
#plotload.basic()
#
#
#
# ----------------------------------------------------
# Structural Analysis Implicit
# ----------------------------------------------------
#
frame = Trave2D(mesh=mesh['2D'])
frame.static()
results = frame.results()
#
noderes = results.nodes()
#print(noderes)
ndisp = noderes.displacement()
# get pandas df
ndisp_df = ndisp.df
nreacc = noderes.reaction()
# get individual node results
ndisp = noderes[1].displacement()
#
beamres = results.beam()
#print(beamres)
bdisp = beamres.deflection()
bforce = beamres.force()
bstress = beamres.stress()
# get individual beam results
bdisp = beamres[1].deflection()
bforce = beamres[2].force()
bstress = beamres[3].stress()
# get pandas df
bstress_df = bstress.df
#print(bstress)
#
print(results)
print('-->')