Rheolef  7.2
an efficient C++ finite element environment
 
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yield_slip_damped_newton.cc

The yield slip problem by the damped Neton method.

The yield slip problem by the damped Neton method

#include "rheolef.h"
using namespace std;
using namespace rheolef;
#include "yield_slip.h"
int main(int argc, char**argv) {
environment rheolef (argc,argv);
geo omega (argv[1]);
string approx = (argc > 2) ? argv[2] : "P1";
Float S = (argc > 3) ? atof(argv[3]) : 0.6;
Float n = (argc > 4) ? atof(argv[4]) : 1;
Float Cf = (argc > 5) ? atof(argv[5]) : 1;
Float r = (argc > 6) ? atof(argv[6]) : 1;
domain boundary = omega["boundary"];
yield_slip F (S, n, Cf, r, omega, boundary, approx);
field beta_h = F.initial();
Float tol = 10*numeric_limits<Float>::epsilon();
size_t max_iter = 10000;
int status = damped_newton (F, beta_h, tol, max_iter, &derr);
field uh, lambda_h;
F.post (beta_h, uh, lambda_h);
dout << setprecision(numeric_limits<Float>::digits10)
<< catchmark("S") << S << endl
<< catchmark("n") << n << endl
<< catchmark("Cf") << Cf << endl
<< catchmark("r") << r << endl
<< catchmark("u") << uh
<< catchmark("lambda") << lambda_h;
return status;
}
see the Float page for the full documentation
see the field page for the full documentation
see the geo page for the full documentation
see the catchmark page for the full documentation
Definition catchmark.h:67
see the environment page for the full documentation
field initial() const
void post(const field &beta_h, field &uh, field &lambda_h) const
int main()
Definition field2bb.cc:58
This file is part of Rheolef.
STL namespace.
rheolef - reference manual
The yield slip problem – class header.