Menu

Workshops

Projects

Blogs

Careers

Find Jobs


For Business / Universities

Corporate Training

Hire from US

Academic Up-skilling


All Courses

Choose a category

Loading...

All Courses

All Courses

logo

Loading...

FOR BUSINESSES

Corporate Upskilling

Hire from Us

FOR Universities

Academic Training

More

Mechanical

Uploaded on

02 Nov 2022

Why Do Intersections Errors Happen While Defining a Volume For A 3D Mesh ?

logo

Skill-Lync

Meshes are primarily composed of two distinct entities: the geometry (the position x, y, and z of the nodes) and also the topology (how the nodes are connected).

What is a Mesh?

A mesh may be a network that's formed of cells and points. It can have almost any shape in any size and is employed to unravel Partial Differential Equations. Each cell of the mesh represents a personal solution of the equation (all unknowns of equations) which, when combined for the entire network, ends up in an answer for the whole mesh.

Solving the complete region without dividing it into smaller pieces is impossible due to the complexity involved within the domain. Holes, corners and angles can make it extremely difficult for solvers to get an answer. Small cells, on the opposite hand, are comparably easy to unravel and so is the popular strategy.

How Do Intersection Errors Show Up in a 3D Mesh?

- Below mentioned image shows the error pop-up:

Let’s understand it with the help of an example.

The component shown below has two parts included in it.

 

Penetration: Intersections error occurs during a volume mesh when you have defined volumes (Volume deck > Volumes > Define) of two parts together as a single Volume list.

Note: You can see a list of volumes defined by doing V.Mesh > Volume > List. (Refer to Figure 3).

This error may also come when there is a common surface for two different parts (i.e Triple CONS in the model) or if the surfaces of two components are very close together.

Now Right click on the selected ID 1 and select “Remesh”. (Refer Fig.4)

You will be able to see the error pop-up which shows the Penetration: Intersections error as Shown in Fig 1. 

__________________________________________________________________________________________________________________________________________

Now let's solve the above issue by defining the volume for both part volumes separately. 

Step 1:

- Define the volume for the inner separated part volumes as shown in Fig 5. 

- Isolate one part alone in GUI

- Goto Volume deck > Volumes > Define > Manual 

- Select the whole part 

- On a middle click confirmation you will see a Property help window popping up.

- Then follow these steps to create a new PID for Volume: Right click > New > PSOLID

- You can see a window popping up which asks to enter the details of the PSOLID.

- Rename it and click Ok

- Now you can see that a PSOLID Id is created on the Property help window.

- Double-click on the Id and the property will be assigned to that newly created PID. 

- Now open the Volumes > List tab from the volume deck, you can see the following pop-up window.

- Right-click on the Id and select Remesh.

- You can see another window popping up where you can select the type of mesh generation algorithm.

- Select Tetra FEM and select Ok

- Now if we check the Volumes > List, it shows the status as Meshed.

- Follow the same steps to mesh the other outer part.


Author

author

Navin Baskar


Author

blogdetails

Skill-Lync

img

Continue Reading

Related Blogs

Shock tube simulation

Learn how to render a shock-tube-simulation and how to work on similar projects after enrolling into anyone of Skill-Lync's CAE courses.

Mechanical

10 May 2020


What is Finite element analysis (FEA)?

What exactly is Finite element analysis? How would one explain the basic concept to an undergrad friend? Learn how FEA courses at Skill-Lync can help you get employed.

Mechanical

08 May 2020


Design of Frontal BIW enclosure of a car (Bonnet)

In this blog, read how to design the frontal BIW enclosure of a car (Bonnet) and learn how Skill-Lync Master's Program in Automotive Design using CATIA V5 will help you get employed as a design engineer.

Mechanical

10 May 2020


What is Strain Hardening and Plasticity?

This effect shown in the kinematic hardening is known as the Bauschinger effect. For large strain problems, kinematic hardening model is not a good choice because of the Bauschinger effect.

Mechanical

27 Jun 2022


What is Hourglass Effect? Working & Fixes

When the elements in a model deform but the strain energy is not computed for that deformation, it results in an Hourglass deformation effect or Hourglass effect. Usually, this can be clearly seen in the post-processing stage where the elements will have a zig-zag formation.

Mechanical

28 Jun 2022



Author

blogdetails

Skill-Lync

img

Continue Reading

Related Blogs

Shock tube simulation

Learn how to render a shock-tube-simulation and how to work on similar projects after enrolling into anyone of Skill-Lync's CAE courses.

Mechanical

10 May 2020


What is Finite element analysis (FEA)?

What exactly is Finite element analysis? How would one explain the basic concept to an undergrad friend? Learn how FEA courses at Skill-Lync can help you get employed.

Mechanical

08 May 2020


Design of Frontal BIW enclosure of a car (Bonnet)

In this blog, read how to design the frontal BIW enclosure of a car (Bonnet) and learn how Skill-Lync Master's Program in Automotive Design using CATIA V5 will help you get employed as a design engineer.

Mechanical

10 May 2020


What is Strain Hardening and Plasticity?

This effect shown in the kinematic hardening is known as the Bauschinger effect. For large strain problems, kinematic hardening model is not a good choice because of the Bauschinger effect.

Mechanical

27 Jun 2022


What is Hourglass Effect? Working & Fixes

When the elements in a model deform but the strain energy is not computed for that deformation, it results in an Hourglass deformation effect or Hourglass effect. Usually, this can be clearly seen in the post-processing stage where the elements will have a zig-zag formation.

Mechanical

28 Jun 2022


Related Courses

https://d28ljev2bhqcfz.cloudfront.net/mainproject/thumb/mid-surface-extraction-and-meshing-of-an-ip-substrate_1616574368.jpg
Modelling of an Automotive IP Trim component by using ANSA
Recently launched
0 Hours of content
Design Domain
Know more
https://d28ljev2bhqcfz.cloudfront.net/maincourse/thumb/preprocessor-structural-analysis-ansa_1636604676.jpg
4.7
17 Hours of content
Cae Domain
https://d28ljev2bhqcfz.cloudfront.net/maincourse/thumb/advanced-cfd-meshing-ansa_1612263286.jpg
4.9
12 Hours of content
Cfd Domain
https://d28ljev2bhqcfz.cloudfront.net/mainproject/thumb/meshing-and-connections-deployment-of-rear-suspension-of-a-car-73676_1616585003.jpgRecently launched
0 Hours of content
Design Domain
Showing 1 of 6 courses
Try our top engineering courses, projects & workshops today!Book a FREE Demo