def defineWireframeModel(self, nodes):
self.modelSpace = predefined_spaces.StructuralMechanics2D(nodes)
preprocessor = self.modelSpace.preprocessor
points = preprocessor.getMultiBlockTopology.getPoints
self.wireframeModelPoints = dict()
pos = self.getWFStemTopPosition()
self.wireframeModelPoints['stemTop'] = points.newPntFromPos3d(
geom.Pos3d(pos.x, pos.y, 0.0))
pos = self.getWFStemBottomPosition()
self.wireframeModelPoints['stemBottom'] = points.newPntFromPos3d(
geom.Pos3d(pos.x, pos.y, 0.0))
pos = self.getWFToeEndPosition()
self.wireframeModelPoints['toeEnd'] = points.newPntFromPos3d(
geom.Pos3d(pos.x, pos.y, 0.0))
pos = self.getWFHeelEndPosition()
self.wireframeModelPoints['heelEnd'] = points.newPntFromPos3d(
geom.Pos3d(pos.x, pos.y, 0.0))
lines = preprocessor.getMultiBlockTopology.getLines
self.wireframeModelLines = dict()
self.wireframeModelLines['stem'] = lines.newLine(
self.wireframeModelPoints['stemBottom'].tag,
self.wireframeModelPoints['stemTop'].tag)
self.wireframeModelLines['toe'] = lines.newLine(
self.wireframeModelPoints['stemBottom'].tag,
self.wireframeModelPoints['toeEnd'].tag)
self.wireframeModelLines['heel'] = lines.newLine(
self.wireframeModelPoints['stemBottom'].tag,
self.wireframeModelPoints['heelEnd'].tag)
def modeloSecc2d(preprocessor, nmbS):
nodes = preprocessor.getNodeLoader
modelSpace = predefined_spaces.StructuralMechanics2D(nodes)
nodes.defaultTag = 1 #El número del próximo nodo será 1.
nodes.newNodeXY(1, 0)
nodes.newNodeXY(1, 0)
elementos = preprocessor.getElementLoader
elementos.dimElem = 1
elementos.defaultMaterial = nmbS
elementos.defaultTag = 1 #Tag for the next element.
zls = elementos.newElement("zero_length_section", xc.ID([1, 2]))
return zls
def sectionModel(preprocessor, sectionName):
''' Defines a model to test a 2D fiber section.'''
nodes = preprocessor.getNodeLoader
modelSpace = predefined_spaces.StructuralMechanics2D(nodes)
nodes.defaultTag = 1 #El número del próximo nodo será 1.
nodes.newNodeXY(1, 0)
nodes.newNodeXY(1, 0)
elementos = preprocessor.getElementLoader
elementos.dimElem = 1
elementos.defaultMaterial = sectionName
elementos.defaultTag = 1 #Tag for the next element.
zls = elementos.newElement("ZeroLengthSection", xc.ID([1, 2]))
return zls
L = 1 # Longitud de la ménsula en meters
b = 0.05 # Cross section width en meters
h = 0.10 # Cross section depth en meters
A = b * h # Cross section area en m2
I = 1 / 12.0 * b * h**3 # Momento de inercia en m4
theta = math.radians(30)
E = 2.0E11 # Elastic modulus en N/m2
dens = 7800 # Densidad of the steel en kg/m3
m = A * dens
NumDiv = 10
# Problem type
prueba = xc.ProblemaEF()
preprocessor = prueba.getPreprocessor
nodes = preprocessor.getNodeLoader
modelSpace = predefined_spaces.StructuralMechanics2D(nodes)
# Define materials
scc = typical_materials.defElasticSection2d(preprocessor, "scc", A, E, I)
nodes.newSeedNode()
# Geometric transformation(s)
trfs = preprocessor.getTransfCooLoader
lin = trfs.newLinearCrdTransf2d("lin")
# Definimos elemento semilla
seedElemLoader = preprocessor.getElementLoader.seedElemLoader
seedElemLoader.defaultMaterial = "scc"
seedElemLoader.defaultTransformation = "lin"
seedElemLoader.defaultTag = 1 #Number for the next element will be 1.
#Calculated data As_calc=ro_exp*width*depth #reinforcement area in the cross-section #Other data nDivIJ= 20 #number of cells (fibers) in the IJ direction of the cross section nDivJK= 20 #number of cells (fibers) in the JK direction of the cross section l= 1e-7 # Distance between nodes Flist=np.arange(0e3,650e3,25e3) # axial force [N] # Model definition feProblem= xc.FEProblem() preprocessor= feProblem.getPreprocessor nodes= preprocessor.getNodeHandler #nodes container modelSpace= predefined_spaces.StructuralMechanics2D(nodes) #Defines the dimension of nodes three coordinates (x,y,z) and six DOF for each node (Ux,Uy,theta) nodes.defaultTag= 1 #First node number. nod= nodes.newNodeXY(1.0,0) nod= nodes.newNodeXY(1.0+l,0) # Materials definition concrAux= EHE_materials.HA25 #parameters only for the compression branche #Reinforcing steel. rfSteel=concrete_base.ReinforcingSteel(steelName='rfSteel', fyk=fy_exp, emax=0.08, gammaS=1.15,k=1.05) rfSteel.Es=Es_exp steelDiagram= rfSteel.defDiagK(preprocessor) #Definition of steel stress-strain diagram in XC.
from scipy.interpolate import interp1d
from scipy.integrate import trapz
pth = os.path.dirname(__file__)
if (not pth):
pth = "."
#print("pth= ", pth)
accelFilePath = pth + '/../../aux/A10000.py'
openSeesResultsPath = pth + '/../../aux/test_time_history_01_opensees_results.py'
# *** PROBLEM
FEcase = xc.FEProblem()
prep = FEcase.getPreprocessor
nodes = prep.getNodeHandler
elements = prep.getElementHandler
modelSpace = predefined_spaces.StructuralMechanics2D(
nodes) #defines dimension of
#the space: nodes by three coordinates (x,y) and
#three DOF for each node (Ux,Uy,Theta)
## *** MESH ***
### *** GEOMETRY ***
n1 = nodes.newNodeXY(0.0, 0.0)
n2 = nodes.newNodeXY(0.0, 432.0)
### Single point constraints -- Boundary Conditions
constraints = prep.getBoundaryCondHandler
modelSpace.fixNode000(n1.tag)
### nodal masses:
n2.mass = xc.Matrix([[5.18, 0, 0], [0, 0, 0], [0, 0, 0]]) # node mass matrix.
__email__ = "*****@*****.**"
import xc_base
import geom
import xc
from model import predefined_spaces
from materials import typical_materials
from materials.sections import section_properties
from postprocess.xcVtk import vtk_graphic_base
from postprocess import output_handler
#########################################################
# Problem definition.
feProblem = xc.FEProblem()
preprocessor = feProblem.getPreprocessor
modelSpace = predefined_spaces.StructuralMechanics2D(
preprocessor.getNodeHandler)
# Problem geometry (only geometry, no mesh yet).
points = preprocessor.getMultiBlockTopology.getPoints # Point container.
# Position of the left end of the beam:
pt0 = points.newPntFromPos3d(geom.Pos3d(0.0, 0.0, 0.0))
# Position of the right end of the beam:
pt1 = points.newPntFromPos3d(geom.Pos3d(0.0, 8.0, 0.0)) # Right end
lines = preprocessor.getMultiBlockTopology.getLines # Line container.
ln = lines.newLine(pt0.tag, pt1.tag) # From pt0 to pt1.
# Ascii art:
#
# ^ y
# | ln
