Nonlinear transient impact analysis with contact
Nonlinear transient impact analysis with contact
(OP)
Hi,
How can I simulate an object impacting a another object at certain speed or just a drop test. Starting with a sphere which impacts a simply shaped object (like a cube) seems the easiest way to begin with, but I simply can't start off. I know that it should be modeled as a nonlinear time-dependant problem including contact, but I dont really know what type of boundary conditions, contact definition and solution method is to be used. I am using NX Nastran with Femap 9.2 as pre/post processor. Is there any tutorial which treats this type of problems?
Kind regrads!
How can I simulate an object impacting a another object at certain speed or just a drop test. Starting with a sphere which impacts a simply shaped object (like a cube) seems the easiest way to begin with, but I simply can't start off. I know that it should be modeled as a nonlinear time-dependant problem including contact, but I dont really know what type of boundary conditions, contact definition and solution method is to be used. I am using NX Nastran with Femap 9.2 as pre/post processor. Is there any tutorial which treats this type of problems?
Kind regrads!





RE: Nonlinear transient impact analysis with contact
That's the way I started...
RE: Nonlinear transient impact analysis with contact
The problem is that I dont know how to setup an impact analysis. Is there some kind of a tutorial example which adresses an impact problem? Or do you perhaps have an simple example that you may attach to one of your posts? This would be very helpful as I could explore an existing model so I would also be able to ask more relevant questions concering simluation of impact with Nastran.
Thanks ina dvance.
RE: Nonlinear transient impact analysis with contact
I'm sure there are others that can jump in and help you out.
RE: Nonlinear transient impact analysis with contact
RE: Nonlinear transient impact analysis with contact
RE: Nonlinear transient impact analysis with contact
I am using the combined package FEMAP/NX Nastran. I think this the socalled basic solver which is not the explicit solver that is most appropirate for these types of problems. This basic implicit solver can handle nonlinearity, however only one a each time, being either material, geometrical or contact. I have also Abaqus Implicit and Explicit a my disposal so I will try to resolve this with Abaqus.