def example_1d(): from ibvpy.api import FEDomain, FERefinementGrid, FEGrid, TStepper as TS, \ BCDofGroup, RTraceDomainListField from ibvpy.core.tloop import TLoop, TLine from ibvpy.mesh.xfe_subdomain import XFESubDomain from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic from ibvpy.fets.fets1D.fets1D2l import FETS1D2L from ibvpy.fets.fets1D.fets1D2l3u import FETS1D2L3U from ibvpy.fets.fets_ls.fets_crack import FETSCrack fets_eval = FETS1D2L( mats_eval = MATS1DElastic( E = 1. ) ) #, A=1.)) #xfets_eval = fets_eval # use the same element for the enrichment xfets_eval = FETSCrack( parent_fets = fets_eval ) # Discretization fe_domain = FEDomain() fe_level1 = FERefinementGrid( domain = fe_domain, fets_eval = fets_eval ) fe_grid1 = FEGrid( coord_max = ( 4., 0., 0. ), shape = ( 4, ), fets_eval = fets_eval, level = fe_level1 ) enr = True if enr: fe_xdomain = XFESubDomain( domain = fe_domain, fets_eval = xfets_eval, fe_grid_slice = fe_grid1[ '(X - 2) **2 - 0.5 ' ] ) fe_xdomain.deactivate_sliced_elems() print 'elem_dof_map', fe_xdomain.elem_dof_map fe_domain = FEDomain() fe_level1 = FERefinementGrid( domain = fe_domain, fets_eval = fets_eval ) fe_grid1 = FEGrid( coord_max = ( 4 * 3.14, 0., 0. ), shape = ( 8, ), fets_eval = fets_eval, level = fe_level1 ) enr = True if enr: fe_xdomain = XFESubDomain( domain = fe_domain, fets_eval = xfets_eval, fe_grid_slice = fe_grid1[ 'cos(X) - 0.5' ] ) fe_xdomain.deactivate_sliced_elems() print 'elem_dof_map2', fe_xdomain.elem_dof_map
print 'N_im.shape', N_im.shape print 'dN_ima', dN_imr print 'dN_ima.shape', dN_imr.shape print '*************************' class FETS2D4u4x(FETSEval): dof_r = tr.Array(value=[[-1, -1], [1, -1], [1, 1], [-1, 1]]) geo_r = tr.Array(value=[[-1, -1], [1, -1], [1, 1], [-1, 1]]) vtk_r = [[-1, -1], [1, -1], [1, 1], [-1, 1]] n_nodal_dofs = 2 # Discretization L_x, L_y = 100, 100 mesh = FEGrid(coord_max=(L_x, L_y), shape=(100, 30), fets_eval=FETS2D4u4x()) x_Ia = mesh.X_Id # print 'x_Ia', x_Ia n_I, n_a = x_Ia.shape dof_Ia = np.arange(n_I * n_a, dtype=np.int_).reshape(n_I, -1) # print 'dof_Ia', dof_Ia I_Ei = mesh.I_Ei # print 'I_Ei', I_Ei x_Eia = x_Ia[I_Ei, :] # print 'x_Eia', x_Eia dof_Eia = dof_Ia[I_Ei]
def example_2d(): from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q from ibvpy.fets.fets2D.fets2D4q8u import FETS2D4Q8U from ibvpy.fets.fets2D.fets2D4q9u import FETS2D4Q9U from ibvpy.fets.fets2D.fets2D9q import FETS2D9Q fets_eval = FETS2D4Q(mats_eval=MATS2DElastic(E=1., nu=0.)) xfets_eval = FETSBimaterial(parent_fets=fets_eval, int_order=3, mats_eval=MATS2DElastic(E=1., nu=0.), mats_eval2=MATS2DElastic(E=5., nu=0.)) # Discretization fe_domain = FEDomain() fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval) fe_grid1 = FEGrid(coord_max=(3., 1., 0.), shape=(3, 1), fets_eval=fets_eval, level=fe_level1) fe_xdomain = XFESubDomain( domain=fe_domain, fets_eval=xfets_eval, #fe_grid_idx_slice = fe_grid1[1,0], fe_grid_slice=fe_grid1['X - 1.5']) ts = TS( dof_resultants=True, sdomain=fe_domain, bcond_list=[ BCDofGroup(var='u', value=1., dims=[0], get_dof_method=fe_grid1.get_right_dofs), BCDofGroup(var='u', value=0., dims=[1], get_dof_method=fe_grid1.get_right_dofs), BCDofGroup(var='u', value=0., dims=[0, 1], get_dof_method=fe_grid1.get_left_dofs), ], rtrace_list=[ # RTraceGraph(name = 'Fi,right over u_right (iteration)' , # var_y = 'F_int', idx_y = 0, # var_x = 'U_k', idx_x = 1), # RTraceDomainListField(name = 'Stress' , # var = 'sig_app', idx = 0, warp = True ), RTraceDomainListField(name='Displacement', var='u', idx=0, warp=True), RTraceDomainListField(name='Strain', var='eps', idx=0, warp=True), # RTraceDomainField(name = 'N0' , # var = 'N_mtx', idx = 0, # record_on = 'update') ]) # # # Add the time-loop control tloop = TLoop( tstepper=ts, # tolerance = 1e-4, KMAX = 4, # debug = True, RESETMAX = 2, tline=TLine(min=0.0, step=1., max=1.0)) #print "elements ",fe_xdomain.elements[0] fe_xdomain.deactivate_sliced_elems() print 'parent elems ', fe_xdomain.fe_grid_slice.elems print 'parent dofs ', fe_xdomain.fe_grid_slice.dofs print "dofmap ", fe_xdomain.elem_dof_map print "ls_values ", fe_xdomain.dots.dof_node_ls_values print 'intersection points ', fe_xdomain.fe_grid_slice.r_i print "triangles ", fe_xdomain.dots.rt_triangles print "vtk points ", fe_xdomain.dots.vtk_X print "vtk data ", fe_xdomain.dots.get_vtk_cell_data('blabla', 0, 0) print 'ip_triangles', fe_xdomain.dots.int_division print 'ip_coords', fe_xdomain.dots.ip_coords print 'ip_weigths', fe_xdomain.dots.ip_weights print 'ip_offset', fe_xdomain.dots.ip_offset print 'ip_X_coords', fe_xdomain.dots.ip_X print 'ip_ls', fe_xdomain.dots.ip_ls_values print 'vtk_ls', fe_xdomain.dots.vtk_ls_values print 'J_det ', fe_xdomain.dots.J_det_grid print tloop.eval() # #ts.setup() from ibvpy.plugins.ibvpy_app import IBVPyApp ibvpy_app = IBVPyApp(ibv_resource=ts) ibvpy_app.main()
def _get_mesh(self): return FEGrid(coord_max=(self.L_x, self.L_y, self.L_z), shape=(self.n_x, self.n_y, self.n_z), fets_eval=self.fets)
def app(): avg_radius = 0.03 md = MATS2DScalarDamage(E=20.0e3, nu=0.2, epsilon_0=1.0e-4, epsilon_f=8.0e-4, #epsilon_f = 12.0e-4, #test doubling the e_f stress_state="plane_strain", stiffness="secant", #stiffness = "algorithmic", strain_norm=Rankine()) # me = MATS2DElastic( E = 20.0e3, # nu = 0.2, # stress_state = "plane_strain" ) fets_eval = FETS2D4Q(mats_eval=md)#, ngp_r = 3, ngp_s = 3) n_el_x = 60 # Discretization fe_grid = FEGrid(coord_max=(.6, .15, 0.), shape=(n_el_x, 15), fets_eval=fets_eval) mf = MFnLineArray(xdata=array([0, 1, 2, 7, 8 , 28]), ydata=array([0, 3., 3.2, 3.3, 3.32, 3.72 ])) #averaging function avg_processor = RTNonlocalAvg(avg_fn=QuarticAF(radius=avg_radius, correction=True)) ts = TS(sdomain=fe_grid, u_processor=avg_processor, bcond_list=[ # constraint for all left dofs in y-direction: BCSlice(var='u', slice=fe_grid[0, 0, 0, 0], dims=[0, 1], value=0.), BCSlice(var='u', slice=fe_grid[-1, 0, -1, 0], dims=[1], value=0.), BCSlice(var='u', slice=fe_grid[n_el_x / 2, -1, 0, -1], dims=[1], time_function=mf.get_value, value= -2.0e-5), ], rtrace_list=[ # RTDofGraph(name = 'Fi,right over u_right (iteration)' , # var_y = 'F_int', idx_y = right_dof, # var_x = 'U_k', idx_x = right_dof, # record_on = 'update'), RTraceDomainListField(name='Deformation' , var='eps_app', idx=0, record_on='update'), RTraceDomainListField(name='Displacement' , var='u', idx=1, record_on='update', warp=True), RTraceDomainListField(name='Damage' , var='omega', idx=0, record_on='update', warp=True), # RTraceDomainField(name = 'Stress' , # var = 'sig', idx = 0, # record_on = 'update'), # RTraceDomainField(name = 'N0' , # var = 'N_mtx', idx = 0, # record_on = 'update') ] ) # Add the time-loop control # tl = TLoop(tstepper=ts, tolerance=5.0e-4, KMAX=100, tline=TLine(min=0.0, step=.25, max=10.0)) tl.eval() # Put the whole stuff into the simulation-framework to map the # individual pieces of definition into the user interface. # from ibvpy.plugins.ibvpy_app import IBVPyApp ibvpy_app = IBVPyApp(ibv_resource=ts) ibvpy_app.main()
def example_2d(): from ibvpy.api import FEDomain, FERefinementGrid, FEGrid, TStepper as TS, \ BCDofGroup, RTraceDomainListField from ibvpy.core.tloop import TLoop, TLine from ibvpy.mesh.xfe_subdomain import XFESubDomain from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic from ibvpy.mats.mats2D import MATS2DPlastic from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q from ibvpy.fets.fets2D import FETS2D9Q from ibvpy.fets.fets2D.fets2D4q8u import FETS2D4Q8U from ibvpy.fets.fets_ls.fets_crack import FETSCrack #fets_eval = FETS2D4Q( mats_eval = MATS2DPlastic( E = 1., nu = 0. ) ) fets_eval = FETS2D4Q8U(mats_eval=MATS2DPlastic(E=1., nu=0.)) xfets_eval = FETSCrack(parent_fets=fets_eval, int_order=5, tri_subdivision=1) # Discretization fe_domain = FEDomain() fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval) fe_grid1 = FEGrid(coord_max=(1., 1.), shape=(8, 8), fets_eval=fets_eval, level=fe_level1) #ls_function = lambda X, Y: X - Y - 0.13 ls_function = lambda X, Y: (X - 0.52)**2 + (Y - 0.72)**2 - 0.51**2 bls_function = lambda X, Y: -((X - 0.5)**2 + (Y - 0.21)**2 - 0.28**2) bls_function2 = lambda X, Y: -((X - 0.5)**2 + (Y - 0.21)**2 - 0.38**2) # design deficits: # - How to define a level set spanned over several fe_grids # (i.e. it is defined over the hierarchy of FESubDomains) # - Patching of subdomains within the FEPatchedGrid (FERefinementGrid) # - What are the compatibility conditions? # - What is the difference between FEGridLeveSetSlice # and FELSDomain? # FELSDomain is associated with a DOTS - Slice is not. # FEGrid has a multidimensional array - elem_grid # it can be accessed through this index. # it is masked by the activity map. The activity map can # be defined using slices and level sets. # the elems array enumerates the elements using the activity map. # in this way, the specialization of grids is available implicitly. # fe_xdomain = FELSDomain( domain=fe_domain, fets_eval=xfets_eval, fe_grid=fe_grid1, ls_function=ls_function, bls_function=bls_function, ) fe_tip_xdomain = FELSDomain( domain=fe_domain, fets_eval=xfets_eval, fe_grid=fe_xdomain, ls_function=bls_function, ) # deactivation must be done only after the dof enumeration has been completed fe_xdomain.deactivate_intg_elems_in_parent() fe_tip_xdomain.deactivate_intg_elems_in_parent() fe_xdomain.bls_function = bls_function2 fe_tip_xdomain.ls_function = bls_function2 # deactivation must be done only after the dof enumeration has been completed fe_xdomain.deactivate_intg_elems_in_parent() fe_tip_xdomain.deactivate_intg_elems_in_parent() # # General procedure: # 1) define the level sets with the boundaries # 2) use the bls to identify the tips of the level set # 3) use independent level sets to introduce indpendently junctions. # # get the extended dofs of the bls_elems and constrain it # cdofs = fe_tip_xdomain.elem_xdof_map.flatten() bc_list = [BCDof(var='u', dof=dof, value=0.0) for dof in cdofs] # construct the time stepper ts = TS( dof_resultants=True, sdomain=fe_domain, bcond_list=[ BCSlice( var='u', value=-0.1, dims=[1], slice=fe_grid1[:, 0, :, 0]), BCSlice( var='u', value=0., dims=[0], slice=fe_grid1[:, 0, :, 0]), BCSlice(var='u', value=0., dims=[0, 1], slice=fe_grid1[:, -1, :, -1]) ] + bc_list, rtrace_list=[ # RTDofGraph(name = 'Fi,right over u_right (iteration)' , # var_y = 'F_int', idx_y = 0, # var_x = 'U_k', idx_x = 1), RTraceDomainListField(name='Stress', var='sig_app', idx=0, warp=True), RTraceDomainListField(name='Displacement', var='u', idx=0, warp=True), # RTraceDomainField(name = 'N0' , # var = 'N_mtx', idx = 0, # record_on = 'update') ]) # do = 'print' if do == 'print': p = 'state' if p == 'grids': print('fe_xdomain.ls mask') print(fe_xdomain.ls_mask) print('fe_xdomain.idx mask') print(fe_xdomain.idx_mask) print('fe_xdomain.intg mask') print(fe_xdomain.intg_mask) print('fe_xdomain.xelems_mask') print(fe_xdomain.xelems_mask) print('fe_xdomain.xelems_grid_ix') print(fe_xdomain.xelems_grid_ix) print('fe_xdomain.ls_elem_grid') print(fe_xdomain.ls_elem_grid) print('fe_xdomain.ls_ielem_grid') print(fe_xdomain.ls_ielem_grid) print('fe_xdomain.intg_elem_grid') print(fe_xdomain.intg_elem_grid) print('fe_tip_xdomain.ls_mask`') print(fe_tip_xdomain.ls_mask) print('fe_tip_xdomain.intg_mask`') print(fe_tip_xdomain.intg_mask) print('fe_tip_xdomain.idx_mask`') print(fe_tip_xdomain.idx_mask) print('fe_tip_xdomain.xelems_mask') print(fe_tip_xdomain.xelems_mask) print('fe_tip_xdomain.xelems_grid_ix') print(fe_tip_xdomain.xelems_grid_ix) print('fe_tip_xdomain.ls_elem_grid') print(fe_tip_xdomain.ls_elem_grid) print('fe_tip_xdomain.ls_ielems_grid') print(fe_tip_xdomain.ls_ielem_grid) print('fe_tip_xdomain.intg_elem_grid') print(fe_tip_xdomain.intg_elem_grid) if p == 'maps': print('fe_xdomain.elem_dof_map') print(fe_xdomain.elem_dof_map) print('fe_tip_xdomain.elem_dof_map') print(fe_tip_xdomain.elem_dof_map) print('fe_xdomain.elems') print(fe_xdomain.elems) print('fe_tip_xdomain.elems') print(fe_tip_xdomain.elems) print('fe_xdomain.elem_X_map') print(fe_xdomain.elem_X_map) print('fe_tip_xdomain.elem_X_map') print(fe_tip_xdomain.elem_X_map) if p == 'fields': print("ls_values ", fe_xdomain.dots.dof_node_ls_values) print("tip ls_values ", fe_tip_xdomain.dots.dof_node_ls_values) print('intersection points ', fe_xdomain.ls_intersection_r) print('tip intersection points ', fe_tip_xdomain.ls_intersection_r) print("triangles ", fe_xdomain.dots.rt_triangles) print("vtk points ", fe_xdomain.dots.vtk_X) print("vtk data ", fe_xdomain.dots.get_vtk_cell_data('blabla', 0, 0)) print('ip_triangles', fe_xdomain.dots.int_division) print('ip_coords', fe_xdomain.dots.ip_coords) print('ip_weigths', fe_xdomain.dots.ip_weights) print('ip_offset', fe_xdomain.dots.ip_offset) print('ip_X_coords', fe_xdomain.dots.ip_X) print('ip_ls', fe_xdomain.dots.ip_ls_values) print('vtk_ls', fe_xdomain.dots.vtk_ls_values) print('J_det ', fe_xdomain.dots.J_det_grid) if p == 'state': # Add the time-loop control print('STATE: initial') print('fe_xdomain.dots.state_elem grid') print(fe_xdomain.dots.state_start_elem_grid) print('fe_tip_xdomain.dots.state_elem grid') print(fe_tip_xdomain.dots.state_start_elem_grid) print('fe_xdomain.dots.state_end_elem grid') print(fe_xdomain.dots.state_end_elem_grid) print('fe_tip_xdomain.dots.state_end_elem grid') print(fe_tip_xdomain.dots.state_end_elem_grid) fe_xdomain.dots.state_array[:] = 25.5 print('state_array 25', fe_xdomain.dots.state_array) fe_tip_xdomain.dots.state_array[:] = 58 bls_function3 = lambda X, Y: -((X - 0.5)**2 + (Y - 0.21)**2 - 0.58**2) fe_xdomain.bls_function = bls_function3 fe_tip_xdomain.ls_function = bls_function3 print('STATE: changed') print('fe_xdomain.dots.state_elem grid') print(fe_xdomain.dots.state_start_elem_grid) print('fe_tip_xdomain.dots.state_elem grid') print(fe_tip_xdomain.dots.state_start_elem_grid) print('fe_xdomain.dots.state_end_elem grid') print(fe_xdomain.dots.state_end_elem_grid) print('fe_tip_xdomain.dots.state_end_elem grid') print(fe_tip_xdomain.dots.state_end_elem_grid) print('state_array 25', fe_xdomain.dots.state_array.shape) print('state_array 25', fe_xdomain.dots.state_array[570:]) print('state_array 58', fe_tip_xdomain.dots.state_array.shape) elif do == 'ui': tloop = TLoop(tstepper=ts, debug=False, tolerance=1e-4, KMAX=3, RESETMAX=0, tline=TLine(min=0.0, step=1, max=1.0)) tloop.eval() from ibvpy.plugins.ibvpy_app import IBVPyApp ibvpy_app = IBVPyApp(ibv_resource=ts) ibvpy_app.main()
def example_1d(): fets_eval = FETS1D2L3U(mats_eval=MATS1DElastic(E=20.)) xfets_eval = FETSCrack(parent_fets=fets_eval, int_order=2) # Discretization fe_domain = FEDomain() fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval) fe_grid1 = FEGrid(coord_max=(2., 0., 0.), shape=(2, ), fets_eval=fets_eval, level=fe_level1) enr = True if enr: fe_xdomain = XFESubDomain( domain=fe_domain, fets_eval=xfets_eval, #fe_grid_idx_slice = fe_grid1[1,0], fe_grid_slice=fe_grid1['X - .75']) fe_xdomain.deactivate_sliced_elems() ts = TS( dof_resultants=True, sdomain=fe_domain, bcond_list=[ BCSlice(var='u', value=-1. / 2., dims=[0], slice=fe_grid1[0, 0]), BCSlice(var='u', value=0., dims=[0], slice=fe_grid1[-1, -1]), ], rtrace_list=[ # RTDofGraph(name = 'Fi,right over u_right (iteration)' , # var_y = 'F_int', idx_y = 0, # var_x = 'U_k', idx_x = 1), RTraceDomainListField(name='Stress', var='eps', idx=0, warp=True), RTraceDomainListField(name='Displacement', var='u', idx=0, warp=True), # RTraceDomainField(name = 'N0' , # var = 'N_mtx', idx = 0, # record_on = 'update') ]) # # # Add the time-loop control tloop = TLoop(tstepper=ts, debug=True, tolerance=1e-4, RESETMAX=0, tline=TLine(min=0.0, step=1, max=1.0)) #print "elements ",fe_xdomain.elements[0] if enr: print('parent elems ', fe_xdomain.fe_grid_slice.elems) print('parent dofs ', fe_xdomain.fe_grid_slice.dofs) print("dofmap ", fe_xdomain.elem_dof_map) print("ls_values ", fe_xdomain.dots.dof_node_ls_values) print('intersection points ', fe_xdomain.fe_grid_slice.r_i) # print("triangles ", fe_xdomain.dots.int_division) print('ip_coords', fe_xdomain.dots.ip_coords) print('ip_weigths', fe_xdomain.dots.ip_weights) print('ip_offset ', fe_xdomain.dots.ip_offset) print('ip_X_coords', fe_xdomain.dots.ip_X) print('ip_ls', fe_xdomain.dots.ip_ls_values) print('vtk_X ', fe_xdomain.dots.vtk_X) print('vtk triangles ', fe_xdomain.dots.rt_triangles) print("vtk data ", fe_xdomain.dots.get_vtk_cell_data('blabla', 0, 0)) print('vtk_ls', fe_xdomain.dots.vtk_ls_values) print('J_det ', fe_xdomain.dots.J_det_grid) tloop.eval() from ibvpy.plugins.ibvpy_app import IBVPyApp ibvpy_app = IBVPyApp(ibv_resource=ts) ibvpy_app.main()
# # Created on Jan 21, 2011 by: rch from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic from ibvpy.api import FEDomain, FEGrid, FERefinementGrid, TStepper as TS, TLoop, \ BCSlice, RTraceDomainListField from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q from ibvpy.fets.fets1D.fets1D2l import FETS1D2L if __name__ == '__main__': if True: fets_eval_4u = FETS2D4Q(mats_eval=MATS2DElastic()) fe_grid = FEGrid(name='fe_grid1', coord_max=(4., 4.), shape=(4, 4), fets_eval=fets_eval_4u) interior_elems = fe_grid[1:3, 1:3, :, :].elems interior_bc = fe_grid[1, 1, 1:, 1:] bcond_list = [ BCSlice(var='u', dims=[0, 1], slice=fe_grid[:, 0, :, 0], value=0.0), BCSlice(var='u', dims=[0, 1], slice=interior_bc, link_slice=fe_grid[1, 0, 0, 0], link_coeffs=[0], value=0.0), BCSlice(var='f', dims=[1], slice=fe_grid[0, -1, :, -1], value=1.0)
from ibvpy.mesh.xfe_subdomain import XFESubDomain from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q from ibvpy.fets.fets2D.fets2D4q8u import FETS2D4Q8U from ibvpy.fets.fets2D.fets2D4q9u import FETS2D4Q9U from ibvpy.fets.fets2D.fets2D9q import FETS2D9Q fets_eval = FETS2D4Q(mats_eval=MATS2DElastic(E=1., nu=0.)) xfets_eval = FETSCrack(parent_fets=fets_eval, int_order=5) # Discretization fe_domain = FEDomain() fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval) fe_grid1 = FEGrid(coord_max=(1., 1., 0.), shape=(1, 1), rt_tol=0.1, fets_eval=fets_eval, level=fe_level1) # fe_grid1.deactivate( (1,0) ) # fe_grid1.deactivate( (1,1) ) fe_xdomain = XFESubDomain( domain=fe_domain, fets_eval=xfets_eval, # fe_grid_idx_slice = fe_grid1[1,0], fe_grid_slice=fe_grid1['X - 0.5 -0.1*Y']) ts = TS( dof_resultants=True, sdomain=fe_domain, bcond_list=[
def __demo__(): from ibvpy.api import \ TStepper as TS, RTraceDomainListField, TLoop, \ TLine, BCSlice, FEDomain, FERefinementGrid, FEGrid from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic fets_eval = FETS2D4Q8U(mats_eval=MATS2DElastic()) fe_domain = FEDomain() r1 = FERefinementGrid(fets_eval=fets_eval, domain=fe_domain) r2 = FERefinementGrid(fets_eval=fets_eval, domain=fe_domain) # Discretization domain1 = FEGrid(coord_max=(3., 3.), shape=(10, 4), fets_eval=fets_eval, level=r1) domain2 = FEGrid(coord_min=(3., 0.), coord_max=(6., 3), shape=(10, 4), fets_eval=fets_eval, level=r2) ts = TS( dof_resultants=True, sdomain=[domain1, domain2], # fe_domain, bcond_list=[ # Fix the left edge of domain1 BCSlice(var='u', dims=[0, 1], value=0, slice=domain1[0, :, 0, :]), # Link the right edge of domain1 with the left edge of domain2 # # note that following arrays must have the same lengths: # slice and link_slice # dims, link_dims and link_coeffs must have the same lengths # VAR-1: # linking along the complete line between 'domain1' and 'domain2' # all nodes along the y-axis # (used linking of more nodes at once in 'BCSlice') # BCSlice(var='u', dims=[0, 1], value=0.0, slice=domain1[-1, :, -1, :], link_slice=domain2[0, :, 0, :], link_dims=[0, 1], link_coeffs=[1., 1.]), # VAR-2: # linking along individual points between 'domain1' and 'domain2' # (used linking of single nodes in 'BCSlice') # # BCSlice(var='u', dims=[0, 1], value=0.0, # slice=domain1[-1, -1, -1, -1], # link_slice=domain2[0, -1, 0, -1], # link_dims=[0, 1], # link_coeffs=[1., 1.]), # BCSlice(var='u', dims=[0, 1], value=0.0, # slice=domain1[-1, 0, -1, 0], # link_slice=domain2[0, 0, 0, 0], # link_dims=[0, 1], # link_coeffs=[1., 1.]), # Load the right edge of domain2 BCSlice(var='f', dims=[0], value=1, slice=domain2[-1, :, -1, :]) ], rtrace_list=[ RTraceDomainListField(name='Stress', var='sig_app', idx=0), RTraceDomainListField(name='Displacement', var='u', idx=0, warp=True), ]) # Add the time-loop control tloop = TLoop(tstepper=ts, debug=False, tline=TLine(min=0.0, step=1.0, max=1.0)) print '---- result ----' print tloop.eval() # Put the whole stuff into the simulation-framework to map the # individual pieces of definition into the user interface. # from ibvpy.plugins.ibvpy_app import IBVPyApp app = IBVPyApp(ibv_resource=tloop) app.main()
def app(): avg_radius = 0.03 md = MATS2DScalarDamage( E=20.0e3, nu=0.2, epsilon_0=1.0e-4, epsilon_f=8.0e-4, #epsilon_f = 12.0e-4, #test doubling the e_f stress_state="plane_strain", stiffness="secant", #stiffness = "algorithmic", strain_norm=Rankine()) mdm = MATS2DMicroplaneDamage( E=20.0e3, nu=0.2, #epsilon_f = 12.0e-4, #test doubling the e_f stress_state="plane_strain", model_version='compliance', phi_fn=PhiFnStrainSoftening(G_f=0.0014, f_t=2.0, md=0.0, h=2. * avg_radius)) # mp = MATSProxy( mats_eval = mdm ) # mp.varpars['epsilon_0'].switch = 'varied' # mp.varpars['epsilon_0'].spatial_fn = MFnNDGrid( shape = ( 8, 5, 1 ), # active_dims = ['x', 'y'], # x_mins = GridPoint( x = 0., y = 0. ), # x_maxs = GridPoint( x = length, y = heigth ) ) # mp.varpars['epsilon_0'].spatial_fn.set_values_in_box( 500., [0, 0, 0], [0.2, 0.2, 0.] ) # mp.varpars['epsilon_0'].spatial_fn.set_values_in_box( 500., [0.8, 0, 0], [1., 0.2, 0.] ) # mp.varpars['epsilon_0'].spatial_fn.set_values_in_box( 50., [0., 0.46, 0], [1., 0.5, 0.] ) # me = MATS2DElastic( E = 20.0e3, # nu = 0.2, # stress_state = "plane_strain" ) fets_eval = FETS2D4Q(mats_eval=mdm) #, ngp_r = 3, ngp_s = 3) n_el_x = 20 # 60 # Discretization fe_grid = FEGrid(coord_max=(.6, .15, 0.), shape=(n_el_x, n_el_x / 4), fets_eval=fets_eval) mf = MFnLineArray(xdata=array([0, 1, 2]), ydata=array([0, 3., 3.2])) #averaging function avg_processor = RTNonlocalAvg( avg_fn=QuarticAF(radius=avg_radius, correction=True)) loading_dof = fe_grid[n_el_x / 2, -1, 0, -1].dofs.flatten()[1] print('loading_dof', loading_dof) ts = TS( sdomain=fe_grid, u_processor=avg_processor, bcond_list=[ # constraint for all left dofs in y-direction: BCSlice(var='u', slice=fe_grid[0, 0, 0, 0], dims=[0, 1], value=0.), BCSlice(var='u', slice=fe_grid[-1, 0, -1, 0], dims=[1], value=0.), BCSlice(var='u', slice=fe_grid[n_el_x / 2, -1, 0, -1], dims=[1], time_function=mf.get_value, value=-2.0e-4), ], rtrace_list=[ RTDofGraph(name='Fi,right over u_right (iteration)', var_y='F_int', idx_y=loading_dof, var_x='U_k', idx_x=loading_dof, record_on='update'), RTraceDomainListField(name='Deformation', var='eps_app', idx=0, record_on='update'), RTraceDomainListField(name='Deformation', var='sig_app', idx=0, record_on='update'), RTraceDomainListField(name='Displacement', var='u', idx=1, record_on='update', warp=True), RTraceDomainListField(name='fracture_energy', var='fracture_energy', idx=0, record_on='update', warp=True), RTraceDomainListField(name='Damage', var='omega_mtx', idx=0, warp=True, record_on='update'), # RTraceDomainField(name = 'Stress' , # var = 'sig', idx = 0, # record_on = 'update'), # RTraceDomainField(name = 'N0' , # var = 'N_mtx', idx = 0, # record_on = 'update') ]) # Add the time-loop control # tl = TLoop(tstepper=ts, tolerance=5.0e-5, KMAX=200, tline=TLine(min=0.0, step=.1, max=1.0)) tl.eval() # Put the whole stuff into the simulation-framework to map the # individual pieces of definition into the user interface. # from ibvpy.plugins.ibvpy_app import IBVPyApp ibvpy_app = IBVPyApp(ibv_resource=ts) ibvpy_app.main()
from ibvpy.api import FEDomain, FEGrid, FERefinementGrid, TStepper as TS from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q if __name__ == '__main__': fets_eval_4u = FETS2D4Q(mats_eval=MATS2DElastic()) fe_domain = FEDomain() fe_rgrid1 = FERefinementGrid(name='fe_rgrid1', fets_eval=fets_eval_4u, domain=fe_domain) fe_grid1 = FEGrid(name='fe_grid1', coord_max=(2., 6., 0.), shape=(1, 3), fets_eval=fets_eval_4u, level=fe_rgrid1) fe_grid2 = FEGrid(name='fe_grid2', coord_min=(2., 6, 0.), coord_max=(10, 15, 0.), shape=(3, 2), fets_eval=fets_eval_4u, level=fe_rgrid1) print(fe_grid2[1, 0].elems) fe_grid2.deactivate((1, 0)) print('activation map') print(fe_grid2.activation_map)
def _get_sdomain(self): return FEGrid(coord_min=(0., ), coord_max=(self.L_x, ), shape=(self.n_E, ), fets_eval=self.fets_eval)
return rte_dict #----------------------- example -------------------- if __name__ == '__main__': from ibvpy.api import \ TStepper as TS, FEGrid, RTraceGraph, RTraceDomainField, TLoop, \ TLine, BCDof, DOTSEval, RTraceDomainListField fets_eval = FEQ4T() single_elem = True if single_elem: quad_elem = FEGrid(coord_min=(-5, -5), coord_max=(10, 10), fets_eval=fets_eval, shape=(1, 1)) print quad_elem.dof_grid_spec.node_coords print 'xxxx' ts = TS( sdomain=quad_elem, bcond_list=[BCDof(var='u', dof=i, value=0.) for i in [0, 3]] + [BCDof(var='f', dof=i, value=10) for i in [1, 2]], rtrace_list=[ RTraceDomainListField(name='Temperature', var='u', warp=False, idx=0, record_on='update'), RTraceDomainListField(name='Flux', var='eps',