shelltr.cpp

Finite element program for mechanical problem. It can solve various problem in solid problem

   }
   delete [] strap;
    
  //  contribution from triangular plate element
  strap = new double* [nne];
  for (i=0;i<nne;i++){
    strap[i] = new double [tncompd];
  }
  Dkt->elem_strains (strap,lcid,eid,2,2);

  fprintf (Out,"\n\n strains na desce (prvek %ld)",eid);
  for (i=0;i<nne;i++){
    fprintf (Out,"\n uzel %ld",i);
    for (j=0;j<tncompd;j++){
      fprintf (Out,"   %f",strap[i][j]);
    }
  }


  for (i=0;i<nne;i++){
    for (j=0;j<tncompd;j++){
     stra[i][j+tncomps] = strap[i][j];
    }
  }
  for (i=0;i<nne;i++){
     delete [] strap[i];
  }
  delete [] strap;
  
  fprintf (Out,"\n\n strain v elem_str u prvku cislo %ld",eid);
  for (i=0;i<nne;i++){
   fprintf (Out,"\n");
   for (j=0;j<tncomp;j++){
    fprintf (Out," %20.10e",stra[i][j]);
   }
  }
}
  
void shelltr::appstrain (long lcid,long eid,vector &l,vector &eps)
{
  //  contribution from triangular plane element with rotational degrees of freedom
  Perlt->appstrain (lcid,eid,l[0],l[1],0,tncomps,eps);
    
  //  contribution from triangular plate element
  Dkt->appstrain (lcid,eid,l,2,tncompd,eps);
}
  
void shelltr::allip_strains (double **stra,long lcid,long eid)
{
  long i,j;
  double **strap;
  strap = new double* [nne];
  for (i=0;i<nne;i++){
    strap[i] = new double [tncomps];
  }
  //  contribution from triangular plane element with rotational degrees of freedom
  for (i=0;i<nne;i++){
    for (j=0;j<tncomps;j++){
     strap[i][j] = stra[i][j];
    }
  }
  Perlt->allip_strains (strap,lcid,eid,0,0);
  for (i=0;i<nne;i++){
    delete [] strap[i];
    }
  delete [] strap;
//  contribution from triangular plate element
  strap = new double* [nne];
  for (i=0;i<nne;i++){
    strap[i] = new double [tncomps];
  }
  for (i=0;i<nne;i++){
    for (j=0;j<tncompd;j++){
     strap[i][j] = stra[i][j+tncomps];
    }
  }
  Dkt->allip_strains (strap,lcid,eid,0,0);
  for (i=0;i<nne;i++){
    delete [] strap[i];
    }
  delete [] strap;
}
  
void shelltr::strains (long lcid,long eid)
{
  long i,naep,ncp,sid;
  double **stra;
  vector coord,eps,l(3);
  
  if (Mp->strainaver==0){
    stra = new double* [nne];
    for (i=0;i<nne;i++){
      stra[i] = new double [tncomp];
    }
    elem_strains (stra,lcid,eid);
  }

  switch (Mm->stra.tape[eid]){
  case nowhere:{
    break;
  }
  case intpts:{
    allip_strains (stra,lcid,eid);
    break;
  }
  case enodes:{
    break;
  }
  case userdefined:{
    //  number of auxiliary element points
    naep = Mm->stra.give_naep (eid);
    ncp = Mm->stra.give_ncomp (eid);
    sid = Mm->stra.give_sid (eid);
    allocv (ncp,eps);
    allocv (2,coord);
    for (i=0;i<naep;i++){
      Mm->stra.give_aepcoord (sid,i,coord);
      l[0]=coord[0];l[1]=coord[1];l[2]=1-coord[1]-coord[2];
      if (Mp->strainaver==0)
		appval (l,eps,stra);
      if (Mp->strainaver==1)
		appstrain (lcid,eid,l,eps);

      Mm->stra.storevalues(lcid,eid,i,eps);
    }
    destrv (eps);
    destrv (coord);
    break;
  }
  default:{
    fprintf (stderr,"\n\n unknown strain point is required in function planeelemlt::strains (%s, line %d).\n",__FILE__,__LINE__);
  }
  }
  if (Mp->strainaver==0){
    for (i=0;i<nne;i++){
      delete [] stra[i];
    }
    delete [] stra;
  }
}

void shelltr::res_mainip_stresses (long lcid,long eid)
{
}
  
void shelltr::nod_stresses (long lcid,long eid)
{
  
  //  contribution from triangular plane element with rotational degrees of freedom
  Perlt->nod_stresses (lcid,eid,0,0);
    
  //  contribution from triangular plate element
  Dkt->nod_stresses (lcid,eid,2,2);
}


void shelltr::elem_stresses (double **stra,double **stre,long lcid,long eid)
{
  long i,j;
  double **strap,**strep;

  //  contribution from triangular plane element with rotational degrees of freedom
  strap = new double* [nne];
  strep = new double* [nne];
  for (i=0;i<nne;i++){
    strap[i] = new double [tncomps];
    strep[i] = new double [tncompd];
  }
  for (i=0;i<nne;i++){
    for (j=0;j<tncomps;j++){
     strap[i][j] = stra[i][j];
    }
  }

  //  contribution from triangular plane element with rotational degrees of freedom
  Perlt->elem_stresses (strap,strep,lcid,eid,0,0);
  for (i=0;i<nne;i++){
    for (j=0;j<tncomps;j++){
     stre[i][j] = strep[i][j];
    }
  }
  for (i=0;i<nne;i++){
     delete [] strap[i];
     delete [] strep[i];
   }
   delete [] strap;
   delete [] strep;
    
  //  contribution from triangular plate element
  strap = new double* [nne];
  strep = new double* [nne];
  for (i=0;i<nne;i++){
    strap[i] = new double [tncomps];
    strep[i] = new double [tncompd];
  }
  for (i=0;i<nne;i++){
    for (j=0;j<tncompd;j++){
     strap[i][j] = stra[i][j+tncomps];
    }
  }
  Dkt->elem_stresses (strap,strep,lcid,eid,2,2);
  for (i=0;i<nne;i++){
    for (j=0;j<tncompd;j++){
     stre[i][j+tncomps] = strep[i][j];
    }
  }
  for (i=0;i<nne;i++){
     delete [] strap[i];
     delete [] strep[i];
   }
   delete [] strap;
   delete [] strep;
}
  
void shelltr::appstress (long lcid,long eid,vector &l,vector &sig)
{
  //  contribution from triangular plane element with rotational degrees of freedom
  Perlt->appstress (lcid,eid,l[0],l[1],0,tncomps,sig);
    
  //  contribution from triangular plate element
  Dkt->appstress (lcid,eid,l,2,tncompd,sig);
}
  
void shelltr::allip_stresses (double **stre,long lcid,long eid)
{
  long i,j;
  double **strep;
  strep = new double* [nne];
  for (i=0;i<nne;i++){
    strep[i] = new double [tncomps];
  }
  //  contribution from triangular plane element with rotational degrees of freedom
  for (i=0;i<nne;i++){
    for (j=0;j<tncomps;j++){
     strep[i][j] = stre[i][j];
    }
  }
  //  contribution from triangular plane element with rotational degrees of freedom
  Perlt->allip_stresses (strep,lcid,eid,0,0);
  for (i=0;i<nne;i++){
    delete [] strep[i];
    }
  delete [] strep;
//  contribution from triangular plate element
  strep = new double* [nne];
  for (i=0;i<nne;i++){
    strep[i] = new double [tncompd];
  }
  for (i=0;i<nne;i++){
    for (j=0;j<tncompd;j++){
     strep[i][j] = stre[i][j+tncomps];
    }
  }
    
  //  contribution from triangular plate element
  Dkt->allip_stresses (stre,lcid,eid,0,0);
  for (i=0;i<nne;i++){
    delete [] strep[i];
    }
  delete [] strep;
}
  
void shelltr::stresses (long lcid,long eid)
{
  long i,naep,ncp,sid;
  double **stra,**stre;
  vector l(3),coord,sig;
  
  if (Mp->stressaver==0){
    stra = new double* [nne];
    stre = new double* [nne];
    for (i=0;i<nne;i++){
      stra[i] = new double [tncomp];
      stre[i] = new double [tncomp];
    }
    elem_strains (stra,lcid,eid);
    elem_stresses (stra,stre,lcid,eid);
  }

  switch (Mm->stre.tape[eid]){
  case nowhere:{
    break;
  }
  case intpts:{
    allip_stresses (stre,lcid,eid);
    break;
  }
  case enodes:{
    break;
  }
  case userdefined:{
    //  number of auxiliary element points
    naep = Mm->stre.give_naep (eid);
    ncp = Mm->stre.give_ncomp (eid);
    sid = Mm->stre.give_sid (eid);
    allocv (ncp,sig);
    allocv (2,coord);
    for (i=0;i<naep;i++){
      Mm->stre.give_aepcoord (sid,i,coord);

      l[0]=coord[0];l[1]=coord[1];l[2]=1-coord[1]-coord[2];
      if (Mp->stressaver==0)
	   appval (l,sig,stre);
      if (Mp->stressaver==1)
        appstress (lcid,eid,l,sig);

      Mm->stre.storevalues(lcid,eid,i,sig);
    }
    destrv (sig);
    destrv (coord);
    break;
  }
  default:{
    fprintf (stderr,"\n\n unknown stress point is required in function planeelemrotlt::stresses (%s, line %d).\n",__FILE__,__LINE__);
  }
  }

  if (Mp->stressaver==0){
    for (i=0;i<nne;i++){
      delete [] stra[i];
      delete [] stre[i];
    }
    delete [] stra;
    delete [] stre;
  }
}



void shelltr::inicipval(long eid, long ri, long ci, matrix &nodval, inictype *ictn)
{
  long i, j, k, ipp;
  long ii, jj, nv = nodval.n;
  long nstra;
  double xi, eta;
//  double ipval;
  vector w, gp1, gp2, anv(nne);

  nstra = 0;
  for (j = 0; j < nv; j++) // for all initial values
  {
    for(i = 0; i < nne; i++) // for all nodes on element
      anv[i] = nodval[i][j];
    for (ii = 0; ii < nb; ii++)
    {
      for (jj = 0; jj < nb; jj++)
      {
        ipp=Mt->elements[eid].ipp[ri+ii][ci+jj];
        if (intordsm[ii][jj] == 0)
          continue;
        allocv (intordsm[ii][jj],gp1);
        allocv (intordsm[ii][jj],gp2);
        allocv (intordsm[ii][jj],w);
        gauss_points_tr (gp1.a, gp2.a, w.a, intordsm[ii][jj]);
        for (k = 0; k < intordsm[ii][jj]; k++)
        {
          xi=gp1[k];
          eta=gp2[k];
          //  value in integration point
//          ipval = approx_nat (xi,eta,anv);
          if ((ictn[i] & inistrain) && (j < Mm->ip[ipp].ncompstr))
          {
            //Mm->ip[ipp].strain[j] += ipval;
            ipp++;
            continue;
          }
          if ((ictn[i] & inistress) && (j < nstra + Mm->ip[ipp].ncompstr))
          {
            //Mm->ip[ipp].stress[j] += ipval;
            ipp++;
            continue;
          }
          if ((ictn[i] & iniother) && (j < nv))
          {
            //Mm->ip[ipp].other[j] += ipval;
            ipp++;
            continue;
          }
          ipp++;
        }
        destrv(gp1);  destrv (gp2);  destrv (w);
      }
    }
    if (ictn[i] & inistrain) nstra++;
  }
}