message: added TACS_POISSON_3D_ELEMENT to TACSToFH5
diff: @@ -179,7 +179,8 @@ void TACSToFH5::writeToFile( const char *filename ){
  elem_type == TACS_TIMOSHENKO_BEAM){
  con_size = 2;
  }
  - else if (elem_type == TACS_SOLID){
  + else if (elem_type == TACS_SOLID ||
  + elem_type == TACS_POISSON_3D_ELEMENT){
  con_size = 8;
  }
  