CAD Meshing and Defeaturing Quiz

Removing small holes from a model can improve mesh quality, but it's important to consider whether they are essential.

Chamfers, instead of holes, are generally preferred for better mesh quality.

Small chamfers may be removed in modeling to preserve the shape of adjacent faces.

Use the "Circular Selection Filter" and "Identical Faces" options to select holes or chamfers efficiently.

The "Find Holes" and "Find Chamfers" commands help to locate these features easily.

Removing fillets can sometimes create artificial stress concentrations, which might not be accurate.

Removing fillets is not generally recommended unless explicitly required by the modeling task.

The "Fillet Selection Filter" helps select all fillets in a model for further analysis.

A feature in meshing software that enables the merging of individual bodies into a single connected mesh.

An operation in meshing software where individual bodies are meshed separately without creating shared faces. This leads to a separate mesh for each body.

A feature in meshing software that automatically creates shared faces between bodies in a Parasolid assembly, simplifying the mesh generation process.

The edges of shared faces in a mesh, indicating where multiple bodies connect.

The process of preparing a mesh for further analysis, such as volume mesh generation or quality cleanup.

A feature in meshing software that allows users to visualize non-manifold edges, which are edges where shared faces meet. It helps users understand the connections between different bodies in a mesh.

A process of separating a meshed body into its original individual components. This essentially restores the original body structure.

The stage after meshing where the connected assembly is ready for further analysis, such as volume mesh generation and quality cleanup.

Removing fillets (rounded edges) from a CAD model, before exporting the geometry. This is often more efficient to perform in the design software than during the meshing process.

A function available in some meshing software that automatically removes small edges during the mesh generation process. This helps create cleaner and smoother meshes.

A key step in the meshing process involving applying a mesh to a CAD model. This mesh can be either surface-based (shell) or volume-based.

The process of preparing a CAD model for meshing, including removing unnecessary features, cleaning up geometry errors, and identifying appropriate mesh parameters.

The process of defining how different parts of the CAD model interact with each other in a finite element analysis (FEA) simulation.

The process of setting up the simulation parameters, including the type of analysis, the applied loads, and the material properties, for a finite element analysis (FEA).

Generating a simplified 2D mesh representation of the body with triangular elements, which is commonly used for structural analysis.

The size of the elements used in the mesh generation process, which influences the level of detail in the simulation.

A software suite for simulation and analysis, offering various modules for structural analysis, fluid dynamics, and more.

A collection of courses designed to teach you how to use Altair SimLab for meshing, modeling, and various engineering simulations.

Modules of Altair SimLab that are designed to solve specific types of engineering problems.

A type of analysis used to understand the behavior of objects or structures under applied forces or loads. Often used in the design process to ensure stability and prevent failure.

A module within Altair SimLab that provides tools to perform structural analysis tasks, such as finding stress points, displacements, and overall stiffness.

A simplified representation of a bolt in a finite element model using bar elements and an RBE3 element for the bolt head. Used to reduce model complexity and computational time. It's ideal for noise, vibration, and harshness (NVH) analysis.

A type of 1D bolt model where the bolt head is represented by an RBE3 element (a rigid body element) to connect the bolt to the surrounding structure.

A 1D bolt model where the bolt shaft is represented by bar elements, which have properties like stiffness and material. These elements simulate the length of the bolt.

Applying a force to the bar elements that simulate the bolt to represent the tension within the bolt. It's a critical part of accurately modeling the bolt's effect on the structural behavior.

An advanced 1D bolt modeling technique where the bolt is divided into sections (head, thread, connection) for more accurate representation, especially when dealing with complex bolt configurations.

A method to automatically generate 1D bolts using pre-defined templates that define the bolt geometry and properties. Templates save time and ensure consistency in bolt modeling.

A simplified representation of a bolt in a finite element model, where the bolt is treated as a solid object with a 3D mesh of elements. It offers more detailed representation of the bolt's geometry and behavior.

Refers to the process of automatically generating 3D bolt models based on predefined templates or patterns, which can improve efficiency and consistency.

Properties are required for non-default element types, like shells, in Altair's AMDC database.

The 'Browser' in AMDC is used to manage and view created materials and properties.

Defining loads and constraints on the assembly before exporting to the solver.

LBCs are added to the current solution in AMDC if a solution is defined. Otherwise, they are added to the LBC Browser.

Load Cases are defined in AMDC to represent different scenarios for analysis. They are associated with a specific solution.

Entity Sets are collections of elements or nodes used for applying LBCs or defining contacts.

Solver Settings in AMDC are used to configure specific parameters for the target solver.

The process of exporting the mesh and generating the solver deck from AMDC.