Hi,
How can I write the code of the following equation??
epsilon is strain, and T hat is weight function.
Hi,
How can I write the code of the following equation??
epsilon is strain, and T hat is weight function.
A small exemple of Thermo elasticity with
This is not exactly the same but it is simple modif.
// file lame.edp
mesh Th=square(10,10,[20*x,2*y-1]);
fespace Vh(Th,P2);
Vh u,v,uu,vv,T,TT;
macro epsilon(u1,u2) [dx(u1),dy(u2),(dy(u1)+dx(u2))*0.5]// EOM
macro AA [
[ l2mu, lambda, 0. ],
[ lambda, l2mu, 0. ],
[ 0., 0., mu2 ] ] //
macro Grad(u) [dx(u),dy(u)] //
real E = 21e5, nu = 0.28, mu= E/(2*(1+nu));
real lambda = E*nu/((1+nu)*(1-2*nu)), f = 0; //
real l2mu = lambda + 2*mu;
real mu2 = mu*2;
real K=1;
real ft=1;
real alpha =1e-2;
solve lame([u,v,T],[uu,vv,TT])
= int2d(Th)(
epsilon(u,v)'*AA*epsilon(uu,vv)
- alpha * T*([ 1, 1, 0. ]'* AA*epsilon(uu,vv))
+ K*(Grad(T)'*Grad(TT))
)
- int2d(Th)(f*vv+ ft*TT)
+ on(4,u=0,v=0,T=0);
real coef=100;
plot([u,v],T,wait=1,ps="lamevect.eps",coef=coef);
plot(T,wait=1,fill=1);
mesh th1 = movemesh(Th, [x+u*coef, y+v*coef]);
plot(th1,wait=1,ps="lamedeform.eps");
real dxmin = u[].min;
real dymin = v[].min;
cout << " - dep. max x = "<< dxmin<< " y=" << dymin << endl;
cout << " dep. (20,0) = " << u(20,0) << " " << v(20,0) << endl;