FreeFOAM The Cross-Platform CFD Toolkit
solidEquilibriumDisplacementFoam.C
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5  \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
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23 
24 Application
25  solidEquilibriumDisplacementFoam
26 
27 Description
28  Steady-state segregated finite-volume solver of linear-elastic,
29  small-strain deformation of a solid body, with optional thermal
30  diffusion and thermal stresses.
31 
32  Simple linear elasticity structural analysis code.
33  Solves for the displacement vector field D, also generating the
34  stress tensor field sigma.
35 
36 Usage
37  - solidEquilibriumDisplacementFoam [OPTION]
38 
39  @param -case <dir> \n
40  Specify the case directory
41 
42  @param -parallel \n
43  Run the case in parallel
44 
45  @param -help \n
46  Display short usage message
47 
48  @param -doc \n
49  Display Doxygen documentation page
50 
51  @param -srcDoc \n
52  Display source code
53 
54 \*---------------------------------------------------------------------------*/
55 
56 #include <finiteVolume/fvCFD.H>
57 #include <OpenFOAM/Switch.H>
58 
59 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
60 
61 int main(int argc, char *argv[])
62 {
63 
64 # include <OpenFOAM/setRootCase.H>
65 
66 # include <OpenFOAM/createTime.H>
67 # include <OpenFOAM/createMesh.H>
69 # include "createFields.H"
70 
71 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
72 
73  Info<< "\nCalculating displacement field\n" << endl;
74 
75  while (runTime.loop())
76  {
77  Info<< "Iteration: " << runTime.value() << nl << endl;
78 
80 
81  solve
82  (
83  fvm::laplacian(2*mu + lambda, Dcorr, "laplacian(DD,Dcorr)")
84  + fvc::div(sigmaExp + sigmaD)
85  );
86 
87  D += accFac*Dcorr;
88 
89  {
90  volTensorField gradDcorr = fvc::grad(Dcorr);
91 
92  sigmaExp =
93  (lambda - mu)*gradDcorr + mu*gradDcorr.T()
94  + (lambda*I)*tr(gradDcorr);
95 
96  sigmaD += accFac*(mu*twoSymm(gradDcorr) + (lambda*I)*tr(gradDcorr));
97  }
98 
99 # include "calculateStress.H"
100 # include "kineticEnergyLimiter.H"
101 
102  Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
103  << " ClockTime = " << runTime.elapsedClockTime() << " s"
104  << nl << endl;
105  }
106 
107  Info<< "\n end \n";
108 
109  return 0;
110 }
111 
112 
113 // ************************ vim: set sw=4 sts=4 et: ************************ //