def test_structured_grid(vol_corr=True):
m = RectangleMesh(Point(0,0), Point(2,1), 20, 10)
struct_grd = True
vol_corr = True
"""hard coded bcs"""
bc_loc = [0,1]
bc_type = {'dirichlet':0, 'forceY':1}
bc_vals = {'dirichlet':0, 'forceY':-5e8}
num_lyrs = 2 #num layers of cells for BC
cell_cent, cell_vol = add_ghost_cells(m, bc_loc, num_lyrs, struct_grd)
el = get_peridym_edge_length(cell_cent, struct_grd)
extents = compute_modified_extents(cell_cent, el, struct_grd)
dim = np.shape(cell_cent[0])[0]
#boundary conditions managment
node_ids_dir = get_boundary_layers(cell_cent, el, num_lyrs, bc_loc, struct_grd)
node_ids_frc = get_boundary_layers(cell_cent, el, 2*num_lyrs, bc_loc, struct_grd)
ghost_lyr_node_ids = node_ids_dir
omega_fun = gaussian_infl_fun1
E, nu, rho, mu, bulk, gamma = get_steel_properties(dim)
horizon = 2.001*np.abs(np.diff(cell_cent[0:2][:,0])[0])
tree = QuadTree()
tree.put(extents, horizon)
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(), cell_cent, horizon, vol_corr, struct_grd)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst,nbr_beta_lst, horizon, omega_fun)
K = computeK(horizon, cell_vol, nbr_lst, nbr_beta_lst, mw, cell_cent, E, nu, mu, bulk, gamma, omega_fun)
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent, cell_vol, node_ids_dir, node_ids_frc, struct_grd)
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, u_disp_ghost = recover_original_peridynamic_mesh(cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
disp_cent = get_displaced_soln(cell_cent_orig, u_disp_orig, horizon, dim, plot_=True, zoom=10)
return K, disp_cent
def solve_peridynamic_bar_axial(horizon, m=mesh, nbr_lst=None, nbr_beta_lst=None, material='steel', omega_fun=None, plot_=False, force=25e9, vol_corr=True, struct_grd=False, response='LPS'):
"""
solves the peridynamic bar with a specified load
"""
if response == 'LPS':
computeStiffness = computeK
if response == 'correspondance':
computeStiffness = computeKCorrespondance
dmg_flag=False
print('horizon value: %4.3f\n'%horizon)
bc_type = {'dirichlet':0, 'forceX':1}
bc_vals = {'dirichlet': 0, 'forceX': force}
bc_loc = [0,1]
num_lyrs = 3 #three times discretization width
cell_cent, cell_vol = add_ghost_cells(m, bc_loc, num_lyrs, struct_grd)
el = get_peridym_edge_length(cell_cent, struct_grd)
extents = compute_modified_extents(cell_cent, el, struct_grd)
dim = m.topology().dim()
#boudary conditions management
node_ids_dir = get_boundary_layers(cell_cent, el, num_lyrs, bc_loc, struct_grd)
node_ids_frc = get_boundary_layers(cell_cent, el, 2*num_lyrs, bc_loc, struct_grd)
ghost_lyr_node_ids = node_ids_dir
if material is 'steel':
E, nu, rho, mu, bulk, gamma = get_steel_properties(dim)
if (nbr_lst==None or nbr_beta_lst==None):
tree = QuadTree()
tree.put(extents, horizon)
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(), cell_cent, horizon, vol_corr, struct_grd)
## Initialize simulation
G0 = 1000000/2
s0 = compute_critical_stretch(G0, bulk, horizon)
u_disp = np.zeros((len(cell_cent), dim), dtype=float)
bnd_dmg_lst = compute_bond_damage(s0, cell_cent, nbr_lst, u_disp, dmg_flag)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst, nbr_beta_lst, horizon, omega_fun)
K = computeStiffness(horizon, cell_vol, nbr_lst, nbr_beta_lst, bnd_dmg_lst, mw, cell_cent, E, nu, mu, bulk, gamma, omega_fun, u_disp)
#apply bc
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent, cell_vol, node_ids_dir, node_ids_frc, struct_grd)
#solve
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, _ = recover_original_peridynamic_mesh(cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
#disp_cent = u_disp + cell_cent
disp_cent = get_displaced_soln(cell_cent_orig, u_disp_orig, horizon, dim, plot_=False, zoom=10)
if plot_:
import matplotlib.patches as patches
bndR = np.ravel((np.argwhere(cell_cent_orig[:,0] == np.max(cell_cent_orig[:,0]))))
bndL = np.ravel((np.argwhere(cell_cent_orig[:,0] == np.min(cell_cent_orig[:,0]))))
bndB = np.ravel((np.argwhere(cell_cent_orig[:,1] == np.min(cell_cent_orig[:,1]))))
bndT = np.ravel((np.argwhere(cell_cent_orig[:,1] == np.max(cell_cent_orig[:,1]))))
x_r, y_r = cell_cent_orig[bndR].T
x_l, y_l = cell_cent_orig[bndL].T
x_b, y_b = cell_cent_orig[bndB].T
x_t, y_t = cell_cent_orig[bndT].T
fig = plt.figure()
ax = fig.add_subplot(111)
X,Y = disp_cent.T
plt.scatter(X,Y,marker='o', s=100, color='b', alpha=0.5)
#plt.scatter(x_r,y_r, marker='o', s=100, color='k', alpha=0.25)
#plt.scatter(x_l,y_l, marker='o', s=100, color='k', alpha=0.25)
#plt.scatter(x_b,y_b, marker='o', s=100, color='k', alpha=0.25)
#plt.scatter(x_t,y_t, marker='o', s=100, color='k', alpha=0.25)
#plt.title('axial load, force = %4.2g, vol corr= %s'%(force, str(vol_corr)))
ax.add_patch(patches.Rectangle((0, 0), 2, 1, fill=False, color='k', linewidth=2.0, alpha=1))
ax.set_aspect('equal')
plt.show(block=False)
return K, K_bound, disp_cent, u_disp_orig
def solve_peridynamic_bar_transverse(horizon,
m=mesh,
nbr_lst=None,
nbr_beta_lst=None,
material='steel',
omega_fun=None,
plot_=False,
force=-5e8,
vol_corr=True,
struct_grd=False,
response='LPS'):
"""
solves the peridynamic bar with a specified load
"""
print(
'********** SOLVING PERIDYNAMIC TRANSVERSE TRACTION LOAD PROBLEM ***********'
)
if response == 'LPS':
computeStiffness = computeK
if response == 'correspondance':
computeStiffness = computeKCorrespondance
dmg_flag = False
print('horizon value: %4.3f\n' % horizon)
bc_type = {'dirichlet': 0, 'forceY': 1}
bc_vals = {'dirichlet': 0, 'forceY': force}
bc_loc = [0, 1]
num_lyrs = 3 #three times discretization width
cell_cent, cell_vol = add_ghost_cells(m, bc_loc, num_lyrs, struct_grd)
el = get_peridym_edge_length(cell_cent, struct_grd)
extents = compute_modified_extents(cell_cent, el, struct_grd)
dim = m.topology().dim()
#boudary conditions management
node_ids_dir = get_boundary_layers(cell_cent, el, num_lyrs, bc_loc,
struct_grd)
node_ids_frc = get_boundary_layers(cell_cent, el, 2 * num_lyrs, bc_loc,
struct_grd)
ghost_lyr_node_ids = node_ids_dir
if material is 'steel':
E, nu, rho, mu, bulk, gamma = get_steel_properties(dim)
if (nbr_lst == None or nbr_beta_lst == None):
tree = QuadTree()
tree.put(extents, horizon)
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(),
cell_cent, horizon, vol_corr,
struct_grd)
## Initialize simulation
G0 = 1000000 / 2
s0 = compute_critical_stretch(G0, bulk, horizon)
u_disp = np.zeros((len(cell_cent), dim), dtype=float)
bnd_dmg_lst = compute_bond_damage(s0, cell_cent, nbr_lst, u_disp, dmg_flag)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst,
nbr_beta_lst, horizon, omega_fun)
K = computeStiffness(horizon, cell_vol, nbr_lst, nbr_beta_lst, bnd_dmg_lst,
mw, cell_cent, E, nu, mu, bulk, gamma, omega_fun,
u_disp)
#apply bc
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent, cell_vol,
node_ids_dir, node_ids_frc, struct_grd)
#solve
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, _ = recover_original_peridynamic_mesh(
cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
#disp_cent = u_disp + cell_cent
disp_cent = get_displaced_soln(cell_cent_orig,
u_disp_orig,
horizon,
dim,
plot_=plot_,
zoom=10)
return K, K_bound, disp_cent, u_disp_orig
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(), cell_cent,
horizon, vol_corr, struct_grd)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst,
nbr_beta_lst, horizon, omega_fun)
#initialize
u_disp = np.zeros((len(cell_cent), dim), dtype=float)
bnd_dmg_lst = compute_bond_damage(s0, cell_cent, nbr_lst, u_disp)
#K = computeK(horizon, cell_vol, nbr_lst, nbr_beta_lst, bnd_dmg_lst, mw, cell_cent, E, nu, mu, bulk, gamma, omega_fun, u_disp)
K = computeKCorrespondance(horizon, cell_vol, nbr_lst, nbr_beta_lst,
bnd_dmg_lst, mw, cell_cent, E, nu, mu, bulk, gamma,
omega_fun, u_disp)
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent, cell_vol,
node_ids_dirichlet, node_ids_force, struct_grd)
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, u_disp_ghost = recover_original_peridynamic_mesh(
cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
K_orig = recover_stiffness_for_original_mesh(K, cell_cent, bc_type,
ghost_lyr_node_ids, struct_grd)
u_disp_flat = np.zeros(len(cell_cent_orig) * dim, dtype=float)
disp_cent = get_displaced_soln(cell_cent_orig,
u_disp_orig,
horizon,
dim,
plot_=True,
zoom=20)
def solve_peridynamic_patch_test(horizon,
u_fe_conv=None,
m=mesh,
nbr_lst=None,
nbr_beta_lst=None,
material='steel',
omega_fun=None,
plot_=True,
force=75e9,
vol_corr=True,
struct_grd=True,
response='LPS'):
"""
solves the peridynamic bar with a specified load
"""
print('********** SOLVING PERIDYNAMIC PATCH TEST LOAD PROBLEM ***********')
if response == 'LPS':
computeStiffness = computeK
if response == 'correspondance':
computeStiffness = computeKCorrespondance
dmg_flag = False
print('horizon value: %4.3f\n' % horizon)
bc_type = {'dirichletX': 0, 'forceX': 1}
bc_vals = {'dirichletX': 0, 'forceX': force}
bc_loc = [0, 1]
num_lyrs = 3 #three times discretization width
cell_cent, cell_vol = add_ghost_cells(m, bc_loc, num_lyrs, struct_grd)
el = get_peridym_edge_length(cell_cent, struct_grd)
extents = compute_modified_extents(cell_cent, el, struct_grd)
dim = m.topology().dim()
#boudary conditions management
node_ids_dir = get_boundary_layers(cell_cent, el, num_lyrs, bc_loc,
struct_grd)
node_ids_frc = get_boundary_layers(cell_cent, el, 2 * num_lyrs, bc_loc,
struct_grd)
ghost_lyr_node_ids = node_ids_dir
if material is 'steel':
E, nu, rho, mu, bulk, gamma = get_steel_properties(dim)
if (nbr_lst == None or nbr_beta_lst == None):
tree = QuadTree()
tree.put(extents, horizon)
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(),
cell_cent, horizon, vol_corr,
struct_grd)
## Initialize simulation
G0 = 1000000 / 2
s0 = compute_critical_stretch(G0, bulk, horizon)
u_disp = np.zeros((len(cell_cent), dim), dtype=float)
bnd_dmg_lst = compute_bond_damage(s0, cell_cent, nbr_lst, u_disp, dmg_flag)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst,
nbr_beta_lst, horizon, omega_fun)
K = computeStiffness(horizon, cell_vol, nbr_lst, nbr_beta_lst, bnd_dmg_lst,
mw, cell_cent, E, nu, mu, bulk, gamma, omega_fun,
u_disp)
#apply bc
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent, cell_vol,
node_ids_dir, node_ids_frc, struct_grd)
#fix the lower corners of dirichlet node ids manually :(
fixed_nodes = node_ids_dir[bc_type['dirichletX']][0][0:num_lyrs]
for nk in fixed_nodes:
K_bound[nk * dim + 0] = 0.0
K_bound[nk * dim + 1] = 0.0
K_bound[nk * dim + 0][nk * dim + 0] = 1.0
K_bound[nk * dim + 1][nk * dim + 1] = 1.0
fb[nk * dim + 0] = 0.0
fb[nk * dim + 1] = 0.0
#solve
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, _ = recover_original_peridynamic_mesh(
cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
#disp_cent = u_disp + cell_cent
disp_cent = get_displaced_soln(cell_cent_orig,
u_disp_orig,
horizon,
dim,
plot_=plot_,
zoom=20)
if u_fe_conv == None:
return K, K_bound, disp_cent, u_disp_orig
else:
#get right end cells
boundElIds = np.ravel(
(np.argwhere(cell_cent_orig[:, 0] == np.max(cell_cent_orig[:,
0]))))
cell_cent_right = cell_cent_orig[boundElIds]
u_fe_conv_right_end = np.zeros((len(boundElIds), 2), dtype=float)
for i, cc in enumerate(cell_cent_right):
u_fe_conv_right_end[i] = u_fe_conv(cc)
u_x_disp_PD_right = u_disp_orig[boundElIds][:, 0]
u_x_disp_FE_right = u_fe_conv_right_end[:, 0]
avg_x_disp_PD = np.average(u_x_disp_PD_right)
avg_x_disp_FE = np.average(u_x_disp_FE_right)
abs_err_avg_x_disp = abs(avg_x_disp_PD - avg_x_disp_FE)
rel_err_avg_x_disp = abs_err_avg_x_disp / avg_x_disp_FE * 100.0
bndL = np.ravel(
(np.argwhere(cell_cent_orig[:, 0] == np.min(cell_cent_orig[:,
0]))))
bndB = np.ravel(
(np.argwhere(cell_cent_orig[:, 1] == np.min(cell_cent_orig[:,
1]))))
bndT = np.ravel(
(np.argwhere(cell_cent_orig[:, 1] == np.max(cell_cent_orig[:,
1]))))
x_r, y_r = cell_cent_right.T
x_l, y_l = cell_cent_orig[bndL].T
x_b, y_b = cell_cent_orig[bndB].T
x_t, y_t = cell_cent_orig[bndT].T
fig = plt.figure()
ax = fig.add_subplot(111)
X, Y = disp_cent.T
plt.scatter(X, Y, marker='o', s=100, color='b', alpha=0.5)
plt.scatter(x_r, y_r, marker='o', s=100, color='g', alpha=0.7)
plt.scatter(x_l, y_l, marker='o', s=100, color='g', alpha=0.7)
plt.scatter(x_b, y_b, marker='o', s=100, color='g', alpha=0.7)
plt.scatter(x_t, y_t, marker='o', s=100, color='g', alpha=0.7)
import matplotlib.patches as patches
ax.add_patch(
patches.Rectangle((0, 0),
2,
1,
fill=False,
color='k',
linewidth=2.0,
alpha=1))
ax.set_aspect('equal')
plt.show(block=False)
return disp_cent, u_x_disp_PD_right, u_x_disp_FE_right, avg_x_disp_PD, avg_x_disp_FE, abs_err_avg_x_disp, rel_err_avg_x_disp
def run_correspondance_tests():
"""TODO: Docstring for run_correspondance_tests.
:returns: TODO
"""
unstr_msh_lst, strct_msh_lst = generate_struct_mesh_list_for_pd_tests()
dim = 2
struct_grd = True
vol_corr = False
bc_type = {'dirichlet': 0, 'forceX': 1}
bc_vals = {'dirichlet': 0, 'forceX': 10e8}
bc_loc = [0, 1]
num_lyrs = 2 #num of additional layers on boundary
E, nu, rho, mu, bulk, gamma = get_steel_properties(dim)
horizon_ratio = np.arange(2.0001, 6.0001, 1.)
G0 = 1000000 / 2
for m in strct_msh_lst[3:4]:
cell_cent, cell_vol = add_ghost_cells(m, bc_loc, num_lyrs, struct_grd)
el = get_peridym_edge_length(cell_cent, struct_grd)
extents = compute_modified_extents(cell_cent, el, struct_grd)
node_ids_dirichlet = get_boundary_layers(cell_cent, el, num_lyrs,
bc_loc, struct_grd)
node_ids_force = get_boundary_layers(cell_cent, el, 2 * num_lyrs,
bc_loc, struct_grd)
ghost_lyr_node_ids = node_ids_dirichlet
node_cents_dirichlet = get_bound_cell_cents(node_ids_dirichlet,
cell_cent)
node_cents_force = get_bound_cell_cents(node_ids_force, cell_cent)
omega_fun = gaussian_infl_fun2
for ratio in horizon_ratio:
horizon = ratio * np.abs(np.diff(cell_cent[0:2][:, 0])[0])
print("testing with mesh size : %i and horizon size %4.2g" %
(int(m.num_cells() * 0.5), horizon))
s0 = compute_critical_stretch(G0, bulk, horizon)
tree = QuadTree()
tree.put(extents, horizon)
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(),
cell_cent, horizon,
vol_corr, struct_grd)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst,
nbr_beta_lst, horizon,
omega_fun)
#initialize
u_disp = np.zeros((len(cell_cent), dim), dtype=float)
bnd_dmg_lst = compute_bond_damage(s0, cell_cent, nbr_lst, u_disp)
#K = computeK(horizon, cell_vol, nbr_lst, nbr_beta_lst, bnd_dmg_lst, mw, cell_cent, E, nu, mu, bulk, gamma, omega_fun, u_disp)
K = computeKCorrespondance(horizon, cell_vol, nbr_lst,
nbr_beta_lst, bnd_dmg_lst, mw,
cell_cent, E, nu, mu, bulk, gamma,
omega_fun, u_disp)
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent,
cell_vol, node_ids_dirichlet,
node_ids_force, struct_grd)
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, u_disp_ghost = recover_original_peridynamic_mesh(
cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
K_orig = recover_stiffness_for_original_mesh(
K, cell_cent, bc_type, ghost_lyr_node_ids, struct_grd)
zoom = 20
disp_cent = cell_cent_orig + zoom * u_disp_orig
fig = plt.figure()
ax = fig.add_subplot(111)
X, Y = disp_cent.T
plt.scatter(X, Y, marker='o', s=150, color='b', alpha=0.6)
plt.xlim(-0.05, 2.12)
plt.ylim(-0.26, 1.05)
ax.set_aspect('equal')
plt.title(r'$N=%i, \Delta x=%4.3g , \delta=%4.0f\Delta x$' %
(len(cell_cent_orig), el[0], ratio),
fontsize=14)
plt.show(block=False)
def run_fracture_test():
#m = box_mesh(Point(0,0,0), Point(2,1,1), 10,5,5)
#m = box_mesh_with_hole(numpts=20)
#domain = mshr.Rectangle(Point(0,0), Point(3,1))
#m = mshr.generate_mesh(domain, 30)
m = RectangleMesh(Point(0, 0), Point(2, 1), 30, 15)
#m = rectangle_mesh(numptsX=20, numptsY=10)
#m = rectangle_mesh_with_hole(npts=25)
struct_grd = True
vol_corr = True
dmg_flag = True
save_fig = True
pplot = False
f0 = 10e8
delta_t = 0.00025
ft = 50e9
t = 0.0
bc_type = {'dirichlet': 0, 'forceX': 1}
bc_vals = {'dirichlet': 0, 'forceX': 0}
bc_loc = [0, 1]
num_lyrs = 2 #num of additional layers on boundary
cell_cent, cell_vol = add_ghost_cells(m, bc_loc, num_lyrs, struct_grd)
dim = np.shape(cell_cent[0])[0]
el = get_peridym_edge_length(cell_cent, struct_grd)
# dirichlet bc on ghost layers
node_ids_dir = get_boundary_layers(cell_cent, el, 3, bc_loc, struct_grd)
node_ids_frc = get_boundary_layers(cell_cent, el, 2 * num_lyrs, bc_loc,
struct_grd)
ghost_lyr_node_ids = node_ids_dir
omega_fun = gaussian_infl_fun2
E, nu, rho, mu, bulk, gamma = get_steel_properties(dim)
horizon = 3.001 * np.abs(np.diff(cell_cent[0:2][:, 0])[0])
num_steps = 500
u_disp = np.zeros((len(cell_cent), dim), dtype=float)
G0 = 1000000 / 2
s0 = s0 = compute_critical_stretch(G0, bulk, horizon)
if save_fig:
pwd = getcwd()
today = dttm.now().strftime("%Y%m%d%%H%M%S")
data_dir_top = path.join(pwd, today)
mkdir(data_dir_top)
else:
data_dir_top = None
for i in range(num_steps):
print("********************************************")
print("********************************************")
print("START : time step %i" % i)
t = (i + 1) * delta_t
force = f0 + ft * i * delta_t + 0.10 * ft * t**2
print("appyling external body force: %.4g" % force)
bc_vals['forceX'] = force
extents = compute_modified_extents(cell_cent, el, struct_grd)
tree = QuadTree()
tree.put(extents, horizon)
nbr_lst, nbr_beta_lst = tree_nbr_search(tree.get_linear_tree(),
cell_cent, horizon, vol_corr,
struct_grd)
bnd_dmg_lst = compute_bond_damage(s0, cell_cent, nbr_lst, u_disp,
dmg_flag)
mw = peridym_compute_weighted_volume(cell_cent, cell_vol, nbr_lst,
nbr_beta_lst, horizon, omega_fun)
K = computeK(horizon, cell_vol, nbr_lst, nbr_beta_lst, bnd_dmg_lst, mw,
cell_cent, E, nu, mu, bulk, gamma, omega_fun, u_disp)
K_bound, fb = peridym_apply_bc(K, bc_type, bc_vals, cell_cent,
cell_vol, node_ids_dir, node_ids_frc,
struct_grd)
img_name = 'fracture_test_' + str(i).zfill(3) + '.png'
if save_fig:
data_dir = path.join(data_dir_top, img_name)
else:
data_dir = None
u_disp = direct_solver(K_bound, fb, dim, reshape=True)
cell_cent_orig, u_disp_orig, u_disp_ghost = recover_original_peridynamic_mesh(
cell_cent, u_disp, bc_type, ghost_lyr_node_ids, struct_grd)
disp_cent = get_displaced_soln(cell_cent_orig,
u_disp_orig,
horizon,
dim,
data_dir,
plot_=pplot,
save_fig=save_fig,
zoom=10)
u_disp = u_disp_ghost
cell_cent += u_disp
print("END : time step %i" % i)
print("********************************************")
print("********************************************")