What is submodeling in fea?
What is submodeling in fea?
The term submodeling in FEA is used to describe a technique where large models are divided into logical substructures for simultaneous modeling.
What is a breakout model?
A breakout model is an analysis model created to represent a portion of a large structure in order to get more specific information. NOTE: Breakout models are a term used in the Femap community, but they are also commonly known as submodels.
What is submodelling?
Submodeling is the technique of studying a local part of a model with a refined mesh, based on interpolation of the solution from an initial, global model onto appropriate parts of the boundary of the submodel.
What is Submodeling in Ansys?
© 2015 ANSYS, Inc. February 27, 2015. B. Submodeling Procedure. Submodeling is a technique where a coarsely meshed model can be solved followed by a subsequent solution using only a portion of the coarse model with a more refined mesh.
What is a submodel in Abaqus?
1 Submodeling analysis. Products: ABAQUS/Standard ABAQUS/Explicit. Submodeling is the technique of studying a local part of a model with a refined mesh, based on interpolation of the solution from an initial, global model onto the nodes on the appropriate parts of the boundary of the submodel.
What is substructure in Abaqus?
Substructures are collections of elements from which the internal degrees of freedom have been eliminated. Retained nodes and degrees of freedom are those that will be recognized externally at the usage level (when the substructure is used in an analysis), and they are defined during generation of the substructure.
What is static condensation?
The process of reducing the number of free displacements or degrees of freedom is known as static condensation.
What is static condensation in structural analysis?
Substructuring requires the reduction of nodal coordinates to allow the independent analysis of portions of the structure (substructuring). The process of reducing the number of free displacements or degrees of freedom is known as static condensation.
What is static condensation in structural dynamics?
Static condensation is a mathematical procedure wherein all unloaded degrees of freedom are removed from the system of equilibrium equations. The resulting stiffness matrix (see next slide), although smaller than the original, retains all of the stiffness characteristics of the original system.
What is dynamic condensation?
In dynamic condensation methods, DOFs in the original FE model are separated into the retained and truncated DOFs, and the reduced model is constructed by condensing the stiffness and inertial effects for the truncated DOFs into retained DOFs.
What is static condensation method?
In computational mechanics, Guyan reduction, also known as static condensation, is a dimensionality reduction method which reduces the number of degrees of freedom by ignoring the inertial terms of the equilibrium equations and expressing the unloaded degrees of freedom in terms of the loaded degrees of freedom.
How do I access the NASTRAN in-CAD settings?
To access these settings, first enter the Autodesk Nastran In-CAD environment ( Environments Autodesk Nastran In-CAD ). Then, click System Default Settings from the Autodesk Nastran ribbon tab. Note: The following default settings list is not comprehensive.
What are the NX Nastran commands and parameter settings?
NX Nastran commands and parameter settings needed to activate different analysis features are frequently mentioned. It is assumed that the user is familiar with NX Nastran fundamentals pertaining to linear analysis. This includes general knowledge of the NX Nastran structure, commands, elements, materials, and loads.
What is the difference between NX Nastran and MSc?
NX Nastran is an enhanced proprietary version developed and maintained by Siemens Product Lifecycle Management Software Inc. MSC is a registered trademark of MSC.Software Corporation. MSC.Nastran and MSC.Patran are trademarks of MSC.Software Corporation. All other trademarks are the property of their respective owners.
What is submodeling and how do you do it?
The way we accomplished that was with a process called submodeling where you make a refined local model just of the area you care about, and a coarse mesh that modeled the whole part but still fit on the computer. The displacement field from the coarse model was then applied as a boundary condition on the refined model.
