def calculate(self, loadProfileFromDB):
'''Se ejecuta el calculo de las propiedades de la seccion.
Referencia
----------
rx, ry : radio de giro del miembro | sqrt(I/A)
c_i : coordenada del centroide de la seccion
sc_i : coordenada del centro de corte
A : Area de la seccion
Cw : Constante torsional de warping de la seccion
J : Constante de torsion de St. Venant
Si : modulo elastico
j : mitad de la constante monociclica a compresion en eje -y- (beta22-)
'''
if loadProfileFromDB:
try:
self.load()
except:
loadProfileFromDB = False
pass
if not loadProfileFromDB:
## CALCULO PROPIEDADES A PARTIR DEL PAQUETE sectionproperties
geometry = sections.CeeSection(d=self.H, b=self.B+self.r_out, l=self.r_out, t=self.t, r_out=self.r_out, n_r=8)
# corto los labios y el radio
p1 = geometry.add_point([self.B, 0])
p2 = geometry.add_point([self.B, self.t])
p3 = geometry.add_point([self.B, self.H])
p4 = geometry.add_point([self.B, self.H-self.t])
geometry.add_facet([p1, p2])
geometry.add_facet([p3, p4])
geometry.add_hole([self.B+self.r_out/10, self.t/2]) # add hole
geometry.add_hole([self.B+self.r_out/10, self.H-self.t/2]) # add hole
geometry.clean_geometry() # clean the geometry
# create mesh
mesh = geometry.create_mesh(mesh_sizes=[self.t/4.0])
# creo la seccion
section = CrossSection(geometry, mesh)
# calculo las propiedades
section.calculate_geometric_properties()
section.calculate_warping_properties()
(self.c_x, self.c_y) = section.get_c() # centroides
(self.sc_x, self.sc_y) = section.get_sc() # shear center
self.Cw = section.get_gamma() # warping
(self.rx, self.ry) = section.get_rc() # radios de giro
self.J = section.get_j()
self.A = section.get_area()
self.Ae = section.get_area()
(self.Ix, self.Iy, _) = section.get_ic()
(self.Sx, _, _, _) = section.get_z() # modulo elastico
self.j = section.get_beta_p()[3]/2.0
self.save(section)
self.section = section
def calculate(self, loadProfileFromDB):
'''Se ejecuta el calculo de las propiedades de la seccion.
Parameters
----------
loadProfileFromDB: bool
indica si se debe intentar cargar el perfil desde la base de datos
Referencia
----------
rx, ry : radio de giro del miembro | sqrt(I/A)
c_i : coordenada del centroide de la seccion
sc_i : coordenada del centro de corte
A : Area de la seccion
Cw : Constante torsional de warping de la seccion
J : Constante de torsion de St. Venant
Si : modulo elastico
j : mitad de la constante monociclica a compresion en eje -y- (beta22-)
'''
if loadProfileFromDB:
try:
self.load()
except:
loadProfileFromDB = False
pass
if not loadProfileFromDB:
## CALCULO PROPIEDADES A PARTIR DEL PAQUETE sectionproperties
geometry = sections.CeeSection(d=self.H, b=self.B, l=self.D, t=self.t, r_out=self.r_out, n_r=8)
# create mesh
mesh = geometry.create_mesh(mesh_sizes=[self.t/4.0])
# creo la seccion
section = CrossSection(geometry, mesh)
# calculo las propiedades
section.calculate_geometric_properties()
section.calculate_warping_properties()
(self.c_x, self.c_y) = section.get_c() # centroides
(self.sc_x, self.sc_y) = section.get_sc() # shear center
self.Cw = section.get_gamma() # warping
(self.rx, self.ry) = section.get_rc() # radios de giro
self.J = section.get_j() # St Venant
self.A = section.get_area()
self.Ae = section.get_area()
(self.Ix, self.Iy, _) = section.get_ic()
(self.Sx, _, _, _) = section.get_z() # modulo elastico
self.j = section.get_beta_p()[3]/2.0
self.save(section)
self.section = section
def calculate(self, loadProfileFromDB):
'''Se ejecuta el calculo de las propiedades de la seccion.
Referencia
----------
rx, ry : radio de giro de la seccion | sqrt(I/A)
ri : radio de giro en -y- de un solo perfil c
c_x, c_y : coordenada del centroide de la seccion
sc_x, sc_y : coordenada del centro de corte
A : Area de la seccion
Cw : Constante torsional de warping de la seccion
J : Constante de torsion de St. Venant
Si : modulo elastico
j : mitad de la constante monociclica a compresion en eje -y- (beta22-)
'''
if loadProfileFromDB:
try:
self.load()
except:
loadProfileFromDB = False
pass
if not loadProfileFromDB:
c0 = c_profile(H= self.H, B= self. B, t= self.t, r_out= self.r_out)
c0.calculate(loadProfileFromDB)
c1 = sections.CeeSection(d=self.H, b=self.B+self.r_out, l=self.r_out, t=self.t, r_out=self.r_out, n_r=8)
c2 = deepcopy(c1)
# corto los labios y el radio c1
p1 = c1.add_point([self.B, 0])
p2 = c1.add_point([self.B, self.t])
p3 = c1.add_point([self.B, self.H])
p4 = c1.add_point([self.B, self.H-self.t])
c1.add_facet([p1, p2])
c1.add_facet([p3, p4])
c1.add_hole([self.B+self.r_out/10, self.t/2]) # add hole
c1.add_hole([self.B+self.r_out/10, self.H-self.t/2]) # add hole
c1.clean_geometry() # clean the geometry
c2 = deepcopy(c1)
c2.mirror_section(axis= 'y', mirror_point=[0, 0])
if self.s:
c1.shift = [self.s/2, 0]
c1.shift_section()
c2.shift = [-self.s/2, 0]
c2.shift_section()
# soldadura en los extremos del alma
if self.wld:
h = self.wld*self.r_out # weld length
a = self.wld*self.r_out*2 + self.s # base de la soldadura
weld1 = sections.CustomSection(
points=[[a/2,0], [-a/2, 0], [0, h]],
facets=[[0,1], [1,2], [2,0]],
holes=[],
control_points=[[h / 3, h / 3]]
)
weld2 = deepcopy(weld1)
weld2.mirror_section(axis= 'x', mirror_point=[0, 0])
weld2.shift = [0, self.H]
weld2.shift_section()
geometry = sections.MergedSection([c1, c2, weld1, weld2])
geometry.clean_geometry(verbose= False)
if self.s:
geometry.add_hole([0, self.H/2])
mesh = geometry.create_mesh(mesh_sizes=[self.mesh_size, self.mesh_size, self.mesh_size, self.mesh_size])
else:
geometry = sections.MergedSection([c1, c2])
geometry.clean_geometry()
mesh = geometry.create_mesh(mesh_sizes=[self.mesh_size, self.mesh_size])
section = CrossSection(geometry, mesh)
#mesh_c1 = c1.create_mesh(mesh_sizes=[self.mesh_size])
#section_c1 = CrossSection(c1, mesh_c1)
#section_c1.calculate_geometric_properties()
#section_c1.calculate_warping_properties()
section.calculate_geometric_properties()
section.calculate_warping_properties()
(self.c_x, self.c_y) = section.get_c() # centroides
(self.sc_x, self.sc_y) = section.get_sc() # shear center
self.Cw = section.get_gamma() # warping
(self.rx, self.ry) = section.get_rc() # radios de giro
self.J = section.get_j()
self.A = section.get_area()
self.Ae = self.A
self.ri = c0.ry # radios de giro y de c1
(self.Ix, self.Iy, _) = section.get_ic()
(self.Sx, _, _, _) = section.get_z() # modulo elastico
self.j = section.get_beta_p()[3]/2.0
self.save(section)
self.section = section