See “Shell-to-solid submodeling and shell-to-solid coupling of a pipe joint,” Section For example, a static analysis performed in ABAQUS/Standard can drive a. Perform solid-to-solid, shell-to-shell, and shell-to-solid submodeling. Targeted This course is recommended for engineers with experience using Abaqus. script to perform the steps of the method in an automatic manner. Using the Keywords: Abaqus, Ansa, Meta, Submodelling, Multiscale analysis, Polymers .. scales from shells to solids, further constraints must be introduced, increasing the .
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Saving results from a global model with a physical time scale.
The definition of initial conditions should be consistent between the global model and the submodel. Education Partner Training Click here for a shwll of partner-led training classes. If necessary, use the approach shown in Figure The acoustic-to-structure submodel analysis solves an uncoupled structural force-displacement problem.
Next, run a submodel heat transfer analysis using the mesh mesh2 that is required for the final submodel thermal-stress analysis, and write the nodal temperatures to the results or output database file. Submodeling snell the frequency domain. The x -displacement at the distributing coupling reference node for the global shell model due to the 10 N load is.
All nodes of the submodel where variables will be driven in any step see Figure If a shell offset is defined in the global model, the shell thickness must be set equal to twice the maximum distance from the top or bottom shell surface to the shell reference surface. If no mesh constraints are applied, an Eulerian boundary region will behave in the same way as a sliding boundary region.
Mode-based steady-state dynamics cannot be used at the submodel level. Alternatively, you can use global element sets to associate the submodel driven nodes with the appropriate global model elements. Node definitions for the S4 global model.
Geometry and model In this problem the joint between a pipe and a plate is analyzed. Modifying the set of driven variables. The out-of-plane displacement for the shell-to-solid coupling is slightly less than that for the submodel analysis but is in good agreement with the reference solution shown in Figure 8.
Online-Submodeling with Abaqus
In problems where the fluid exerts large pressures on the structure, the mechanical response of the structure may be of interest. The time variable of each driven node’s amplitude function is scaled to match the ot analysis step time.
In general, accuracy can be checked by comparing contour plots of important variables near the boundaries of the submodeled region. This option is used to create a boundary region across which material can flow and is typically used with velocity boundary conditions. Neither the coupled thermal-electrical procedure nor any of the mode-based dynamics procedures can be used on the submodel level. In the submodel analysis acoustic pressures from the global analysis drive the user-specified structural surface of interest.
Model Edit Attributes submodel: Optional parameters Optional parameters: Reference model with C3D20R elements. First, the closest point on the shell reference surface of the global model is determined.
For the submodeling approach the load magnitude is 10 N for the global analysis and 10 N and 20 N, respectively, absqus the two steps of the submodel analysis a scale factor of 2. Optional, mutually exclusive parameters for matrix generation and direct-solution, steady-state dynamics analysis history data only Optional, mutually exclusive parameters for matrix generation and direct-solution, steady-state dynamics analysis history data only: If this magnitude is a rotation, it must aolid given in radians.
These results must be written in the global coordinate system of the model.
Solid submodel overlaid on the shell model in the deformed state, using a magnification factor of This example demonstrates go use of the shell-to-solid submodeling and shell-to-solid coupling capabilities in Abaquswhich both provide cost-effective approaches to model enhancement.
Alternative to shell-to-solid submodeling. Data lines for acoustic-to-structure submodeling Data lines for acoustic-to-structure submodeling: Required parameters Required parameters: Hence, it is possible to calculate the stress concentration in the fillet. For the remaining driven nodes only the displacement components parallel to the global model midsurface are sibmodeling from the global model.
Submodeling with general and linear perturbation steps.