How to deal with peak stresses on Ansys Structural (Mechanical)

on

 - **Stress averaging**: This method is used to smooth out the stress distribution by averaging the stresses over a certain area or volume. This can reduce the effect of local stress concentrations and provide a more realistic estimate of the average stress in the structure. However, this method may also hide some important stress variations and details, and may not be applicable for complex geometries or non-linear problems. You can read more about this method [here](^1^).


- **Submodeling**: This method is used to perform a detailed analysis of a small region of interest within a larger model. This can increase the accuracy and resolution of the solution in the region where peak stresses occur, without increasing the computational cost and time for the whole model. However, this method requires careful selection of the submodel boundaries and loading conditions, and may not capture the global effects of the structure. You can read more about this method [here](^2^).

- **Singularity elimination**: This method is used to modify the geometry or boundary conditions of the model to eliminate or reduce the singularities that cause peak stresses. Singularities are points or lines where the stress becomes infinite or undefined, such as sharp corners, re-entrant angles, or point loads. By rounding off the corners, adding fillets, or distributing the loads, the singularities can be avoided or minimized. However, this method may also alter the actual behavior of the structure and introduce errors or uncertainties. You can read more about this method [here](^3^).


These are some of the methods that can be used to deal with peak stresses on ANSYS. I hope this helps you understand them better. I


Source:

(1) Understanding and Dealing with Artificially High Stress Using Ansys .... https://www.youtube.com/watch?v=iTqPgcTurXc.

(2) Stress Analysis with Ansys Mechanical. https://courses.ansys.com/index.php/courses/stress-analysis-with-ansys-mechanical/.

(3) What is Stress Linearization? - graspengineering.com. https://www.graspengineering.com/what-is-stress-linearization/.

(4) undefined. https://bing.com/search?q=.

If U want more intresting entries try links below

Static structural analysis (simulation) in Ansys - for beginners

How to add / generate subdomain on existing geometry - Ansys Design Modeler

Investigation of the influence of conductivity of two-component geometry in Ansys Transient Thermal

Comments

Post a Comment

Popular POSTS

Image

Quick Tip: How to fix Error: GENERAL-CAR-CDR in Ansys (Fluent)

 The error message Error: GENERAL-CAR-CDR: invalid argument [1]: improper list means that there is a problem with the scheme code or the UDF (user-defined function) in your case or data file . Some possible solutions are: Save the case and data file and try to reopen it. Reset the Fluent Setup tab and try opening the mesh. Remesh the geometry and reopen in Fluent. Change the material definition from “Solid” to “Fluid” in Design Modeler. Change the transient to steady if you are using evaporation-condensation as the phase interaction mechanism. Check the syntax of your UDF and make sure it follows the new rules in Fluent 6.2.16 or later. I hope this helps you resolve the error. If you need more assistance, please visit the Ansys Learning Forum or contact Ansys Support . Have a nice day! 😊 Sources: 1. smartadm.ru 2. cfd-online.com 3. forum.ansys.com 4. forum.ansys.com In Polish  BÅ‚Ä…d: GENERAL-CAR-CDR oznacza, że wystÄ…piÅ‚ problem z kodem Scheme w programie Ansys Fluent. Scheme to jÄ™zyk
Image

Types of supports and examples - Ansys Static Structural

Supports are used to represent parts that are not present in the model but are interacting with it. Supports help truncate the domain, which helps in efficiently obtaining numerically accurate results without modeling parts of the geometry that are not of primary interest. There are different types of support available, among which you need to choose the appropriate one for your analysis. Here are some of the common types of supports and their explanations: - **Fixed Support**: This type of support constrains all the degrees of freedom of the selected entity (body, face, or edge). It means that the entity cannot move or rotate in any direction. Fixed support is equivalent to applying zero displacement to all directions. Fixed support is useful for modeling rigid connections or supports that do not allow any movement. For example, you can use fixed support to model a bolted joint or a clamped beam. - **Displacement Support**: This type of support specifies a zero or non-zero displacemen
Image

💥💥💥 How to define a porous model in Ansys Fluent?

 Defining a porous model in Ansys Fluent involves specifying the region of your geometry that represents the porous media and assigning its properties. Here's a breakdown of the steps: **1. Defining the Porous Zone:** * In the Setup stage of Ansys Fluent, navigate to the **Cells** menu and choose **Zones**. * In the Zones window, click **Create** and select **Fluid**. This creates a new fluid zone. * Right-click on the newly created fluid zone and choose **Edit**. * In the Edit Fluid Zone window, locate the **Porous Zone** option and enable it. This activates the porous media functionalities for this zone. **2. Specifying Porous Media Properties:** * With the Porous Zone enabled, you'll see additional options appear in the Edit Fluid Zone window. Here's what you need to define:     * **Porosity:** This represents the volume fraction of the void space within the porous media. Enter a value between 0 (solid) and 1 (all void).     * **Momentum:** You can choose between differe