dim 2 ndofpn 2 Nodes nNodes 3 id crd 1 1.6 1.2 2 0 0 3 0 2.8 Elements ne 3 id elementType matID neNodes eNodes 1 3 1 2 2 3 2 3 1 2 2 1 3 3 1 2 3 1 PrescribedDOF np 3 node node_dof_index value 2 1 0.0 3 1 0.5 3 2 0.0 FreeDofs nNonZeroForceFDOFs 1 node node_dof_index value 1 2 -1.0 Materials nMat 1 id numPara Paras 1 2 1.0 1.0