Section 11 Finite Element Modeling

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Overview This section provides tools for the user to work on the Nodes and Elements. Following tasks can be performed over a FEM model. Create / Delete orphan node Move Nodes to other locations Modify elements (Lower order to higher order and vice versa) Renumbering Nodes / Elements Transferring Loads and Boundary conditions to other bodies Assigning Nodes to Local coordinates Exporting Nodes and Elements Removing thread & Logos Creating Ribs Modify Features (Rib/Cylinders)

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information FEM Modeling Node tool Create- To create orphan nodes. Move- To Move nodes from one location to another location. Equivalence- To equivalence nodes in the bodies. Show Nodes- To show free/shared nodes within the given tolerance. Delete Orphan- To delete orphan nodes. Transfer Nodes- To transfer orphan nodes from one model to another model. Separate nodes- To separate the shared nodes.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information FEM Modeling Element tool To Modify the elements from lower order to higher order. Element conversion from Tri to Quad, Quad to Tri and Wedge to Tet is supported. To Remove duplicate solid elements. Other Tools are similar to the ones available in mesh clean up.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Renumber Elements and Nodes in a model can be renumbered. Corner, Mid, and Internal Nodes can be numbered using separate range. Each Element type can also be numbered using separate range.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Transfer ID’s To set Node Ids from one body to another using proximity. Property can also be transferred.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Transfer Loads / Properties The loads and boundary conditions of a body can be transferred to the newly altered body that has any design or mesh changes. LBC and automation object gets transferred using Persistent ID, Cad ID, and Distance.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Replace Body To replace an existing body in the assembly by a new body having design/mesh changes. Loads, Boundary conditions and Property are preserved. Mapping is done using persistent ID.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Export Nodes / Elements Nodes and Elements in a face can be exported in the following formats. CSV (Text File) BDF (Bulk Data Format) INP (ABAQUS Input File Format) CSV format has support to export nodes and surface elements. BDF and INP format has support to export the surface and solid elements.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Assign LCS Nodes can be assigned to a Local Coordinate System. Input can either be body/face/edge/vertex/element/node.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Thread Removal T he thread face in the bolt holes can be removed using this option. This works on meshed bodies only.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Logo Removal Unwanted Logos, Numbers, Letters embossed on a meshed body can be removed easily using this tool.

Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Create Rib In order to bolster the structure, ribs can be created using this tool.