Hi all,
I am trying to model a contact problem in DIANA FEA. I went through the DIANA manual and found that DIANA has contact elements which imposes the contact constraint. But there aren't any tutorial or examples available online to do this.
The material property for the contact element has two options target and contactor. When I try to assign the contact element material properties to an existing steel object, the object loses its steel material properties and contains only the contact elements properties which is friction and penetration depth.
Could someone explain how can I assign the contact constraint in DIANA when two steel cubes are touching each other.
I provide you with the answers to your question below :
To assign the contact constraint in DIANA when two steel cubes are touching each other, you will need to create two contact elements. One contact element will be associated with the first steel cube, and the other contact element will be associated with the second steel cube.
The contact elements will need to have the following properties:
- Target: The target property specifies the surface of the first steel cube that will be in contact with the second steel cube.
- Contactor: The contactor property specifies the surface of the second steel cube that will be in contact with the first steel cube.
- Friction: The friction property specifies the coefficient of friction between the two steel cubes.
- Penetration depth: The penetration depth property specifies the maximum penetration depth between the two steel cubes.
Once you have created the contact elements, you will need to assign them to the two steel cubes. To do this, you will need to use the Assign Material command. When you use the Assign Material command, you will need to select the contact element material as the material for the steel cubes.
Here are the steps on how to assign the contact constraint in DIANA when two steel cubes are touching each other:
Hi Dr Mohd,
Thank you Mohd Redzuan Mohd Sofian for articulating the steps. I will definitely press the recommendation button on your paper. I do have a couple of questions about the contact element.
I am able to create a target and contactor properties for the contact element in which I assign the friction and penetration properties. But I am not able to associate the contact properties to the steel cubes. Whenever I assign the contact properties, the steel properties of the material gets deleted.
Should I create a new element between the steel cubes and assign the contact properties to the new element? Could you kindly give me a rough step by step instructions on how to associate the contact properties to the steel cubes?
Mukuntheshwaran Venkatesan ,
I am running though same problem . If you got your answer then can you share it with me?
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