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rough_contact.py
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Tue, Sep 3, 11:06
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rTAMAAS tamaas
rough_contact.py
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#!/usr/bin/env python3
# @file
# @section LICENSE
#
# Copyright (©) 2016-2021 EPFL (École Polytechnique Fédérale de Lausanne),
# Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import
tamaas
as
tm
import
matplotlib.pyplot
as
plt
# Initialize threads and fftw
tm
.
set_log_level
(
tm
.
LogLevel
.
info
)
# Show progression of solver
# Surface size
n
=
512
# Surface generator
sg
=
tm
.
SurfaceGeneratorFilter2D
([
n
,
n
])
sg
.
random_seed
=
0
# Spectrum
sg
.
spectrum
=
tm
.
Isopowerlaw2D
()
# Parameters
sg
.
spectrum
.
q0
=
16
sg
.
spectrum
.
q1
=
16
sg
.
spectrum
.
q2
=
64
sg
.
spectrum
.
hurst
=
0.8
# Generating surface
surface
=
sg
.
buildSurface
()
surface
/=
tm
.
Statistics2D
.
computeSpectralRMSSlope
(
surface
)
plt
.
imshow
(
surface
)
# Creating model
model
=
tm
.
ModelFactory
.
createModel
(
tm
.
model_type
.
basic_2d
,
[
1.
,
1.
],
[
n
,
n
])
# Solver
solver
=
tm
.
PolonskyKeerRey
(
model
,
surface
,
1e-12
)
# Solve for target pressure
p_target
=
0.1
solver
.
solve
(
p_target
)
plt
.
figure
()
plt
.
imshow
(
model
.
traction
)
plt
.
title
(
'Contact tractions'
)
print
(
model
.
traction
.
mean
())
plt
.
show
()
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