Learning Forum

[javat33489]

Hello everyone dear.

I have some questions about metal cutting with LS-DYNA. I would like to consult with you.

1. When cutting metal, the cutting wedge is a rigid body, and the rock is a destructible body. If the wedge has teeth made of another metal, can I make them non-rigid body to see how they deform?

2. If I'm simulating cutting 100mm of rock and I need to cut 1000m, can I loop the calculation to see how the teeth deform after 1000m? How to do it?

[javat33489]

What do you think about these questions guys?

[Ram Gopisetti]

Hello, yes, you can make it non rigid to see how it deforms

if the rock is 100mm how can you cut 1000m, can you reframe this question. 

Cheers, Ram 

[javat33489]

For example, I need to drill 1000 meters of rock and see how the drill wears off. But I can't create a rock model 1000 meters long and make such a calculation, it will be considered for a whole year. How can I scale this calculation?

[Reno Genest]

Hello,

You could model wear at the contact level in LS-DYNA using *CONTACT_ADD_WEAR. Have a look at the user manual for more information. You will find papers here:

https://www.dynalook.com/conferences/14th-international-ls-dyna-conference/simulation/simulation-of-wear-processes-in-ls-dyna-r/view

https://www.dynalook.com/search?SearchableText=wear

You can download the example here:

https://ftp.lstc.com/anonymous/outgoing/support/EXAMPLES/wear_for_distribution_with_pdf.tar.gz

 

Reno.