tadd script for faster high shear-strain experiments - sphere - GPU-based 3D di… | |
git clone git://src.adamsgaard.dk/sphere | |
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--- | |
commit 5389122ce8220481fc757b59cb5ff598b308a985 | |
parent 971b6b4ea78006df04fb7d76efe92d33dd36ca14 | |
Author: Anders Damsgaard <[email protected]> | |
Date: Mon, 6 Jun 2016 20:28:42 +0200 | |
add script for faster high shear-strain experiments | |
Diffstat: | |
A python/jp-long-shear-soft.py | 160 +++++++++++++++++++++++++++++… | |
1 file changed, 160 insertions(+), 0 deletions(-) | |
--- | |
diff --git a/python/jp-long-shear-soft.py b/python/jp-long-shear-soft.py | |
t@@ -0,0 +1,160 @@ | |
+#!/usr/bin/env python | |
+ | |
+# Import sphere functionality | |
+import sphere | |
+ | |
+### EXPERIMENT SETUP ### | |
+initialization = True | |
+consolidation = True | |
+shearing = True | |
+rendering = False | |
+plots = True | |
+ | |
+# CUDA device to use | |
+device = 0 | |
+ | |
+# Number of particles | |
+np = 1e4 | |
+ | |
+# Common simulation id | |
+sim_id = "jp-long-shear-soft" | |
+ | |
+# Deviatoric stress [Pa] | |
+devslist = [100e3] | |
+ | |
+### INITIALIZATION ### | |
+ | |
+# New class | |
+init = sphere.sim(np=np, nd=3, nw=0, sid=sim_id + "-init") | |
+ | |
+# Save radii | |
+init.generateRadii(mean=0.01) | |
+ | |
+# Use default params | |
+init.defaultParams(k_n=1.16e7, k_t=1.16e7, gamma_n=100.0, mu_s=0.6, mu_d=0.6) | |
+ | |
+# Add gravity | |
+init.g[2] = -9.81 | |
+ | |
+# Periodic x and y boundaries | |
+init.periodicBoundariesXY() | |
+ | |
+# Initialize positions in random grid (also sets world size) | |
+hcells = np**(1.0/3.0) | |
+init.initRandomGridPos(gridnum=[hcells, hcells, 1e9]) | |
+ | |
+# Set duration of simulation | |
+init.initTemporal(total=10.0, epsilon=0.07) | |
+ | |
+if (initialization): | |
+ | |
+ # Run sphere | |
+ init.run(dry=True) | |
+ init.run(device=device) | |
+ | |
+ if (plots): | |
+ # Make a graph of energies | |
+ init.visualize('energy') | |
+ | |
+ init.writeVTKall() | |
+ | |
+ if (rendering): | |
+ # Render images with raytracer | |
+ init.render(method="angvel", max_val=0.3, verbose=False) | |
+ | |
+ | |
+# For each normal stress, consolidate and subsequently shear the material | |
+for devs in devslist: | |
+ | |
+ ### CONSOLIDATION ### | |
+ | |
+ # New class | |
+ cons = sphere.sim( | |
+ np=init.np, | |
+ nw=1, | |
+ sid=sim_id + | |
+ "-cons-devs{}".format(devs)) | |
+ | |
+ # Read last output file of initialization step | |
+ lastf = sphere.status(sim_id + "-init") | |
+ cons.readbin( | |
+ "../output/" + | |
+ sim_id + | |
+ "-init.output{:0=5}.bin".format(lastf), | |
+ verbose=False) | |
+ | |
+ # Periodic x and y boundaries | |
+ cons.periodicBoundariesXY() | |
+ | |
+ # Setup consolidation experiment | |
+ cons.consolidate(normal_stress=devs) | |
+ | |
+ # Set duration of simulation | |
+ cons.initTemporal(total=3.0, epsilon=0.07) | |
+ | |
+ """ | |
+ cons.w_m[0] *= 0.001 | |
+ cons.mu_s[0] = 0.0 | |
+ cons.mu_d[0] = 0.0 | |
+ cons.gamma_wn[0] = 1e4 | |
+ cons.gamma_wt[0] = 1e4 | |
+ cons.contactmodel[0] = 1 | |
+ """ | |
+ | |
+ if (consolidation): | |
+ | |
+ # Run sphere | |
+ cons.run(dry=True) # show values, don't run | |
+ cons.run(device=device) # run | |
+ | |
+ if (plots): | |
+ # Make a graph of energies | |
+ cons.visualize('energy') | |
+ cons.visualize('walls') | |
+ | |
+ cons.writeVTKall() | |
+ | |
+ if (rendering): | |
+ # Render images with raytracer | |
+ cons.render(method="pres", max_val=2.0*devs, verbose=False) | |
+ | |
+ ### SHEARING ### | |
+ | |
+ # New class | |
+ shear = sphere.sim( | |
+ np=cons.np, | |
+ nw=cons.nw, | |
+ sid=sim_id + | |
+ "-shear-devs{}".format(devs)) | |
+ | |
+ # Read last output file of initialization step | |
+ lastf = sphere.status(sim_id + "-cons-devs{}".format(devs)) | |
+ shear.readbin( | |
+ "../output/" + sim_id + "-cons-devs{}.output{:0=5}.bin".format(devs, | |
+ lastf),… | |
+ | |
+ # Periodic x and y boundaries | |
+ shear.periodicBoundariesXY() | |
+ | |
+ # Setup shear experiment | |
+ shear.shear(shear_strain_rate=0.05) | |
+ | |
+ # Set duration of simulation | |
+ shear.initTemporal(total=240.0, epsilon=0.07) | |
+ | |
+ if (shearing): | |
+ | |
+ # Run sphere | |
+ shear.run(dry=True) | |
+ shear.run(device=device) | |
+ | |
+ if (plots): | |
+ # Make a graph of energies | |
+ shear.visualize('energy') | |
+ shear.visualize('shear') | |
+ | |
+ shear.writeVTKall() | |
+ | |
+ if (rendering): | |
+ # Render images with raytracer | |
+ shear.render(method="pres", max_val=2.0*devs, verbose=False) |