topic simulate the deformation of a solid in inventor in Inventor Forum

simulate the deformation of a solid in inventor

oneshortplanck — Tue, 29 Mar 2016 13:29:57 GMT

Hi,

Is it possible to simulate the deformation of a solid in inventor?

For example, the compression of a silicone oring or seal as it is secured into an assembly.

(eventualy I want to extrapolate from this example and visualise a complex sealing arragement involving a PMMA lens.)

(Inventor Profesional 2016)

(Dont think we have Nastran)

Thanks

Re: simulate the deformation of a solid in inventor

JDMather — Tue, 29 Mar 2016 13:58:04 GMT

When you refer to "simulate" do you want to merely have the part deform (physical) (in animation) or do you want to add a force and have the part deform (visual).

Re: simulate the deformation of a solid in inventor

oneshortplanck — Tue, 29 Mar 2016 14:18:10 GMT

the latter,

the end goal being if i apply force x to a lens, how much will an oring deform, and what will the stresses look like in the oring grove, the o-ring, and the plate that retains the oring.

http://www.engineersedge.com/general_engineering/image/oring_static_flange1.gif

Re: simulate the deformation of a solid in inventor

JDMather — Tue, 29 Mar 2016 14:24:54 GMT

Are the materials isotropic?

Can you attach the assembly (or mock-up of assembly if proprietary) here?

Re: simulate the deformation of a solid in inventor

oneshortplanck — Tue, 29 Mar 2016 14:39:38 GMT

Aluminium Housing and Retainer, PMMA Lens and Flurosilicone Seals (Oring and flat seal).

I will CAD up a Mock up.

Be rght Back.

Re: simulate the deformation of a solid in inventor

oneshortplanck — Tue, 29 Mar 2016 14:54:35 GMT

Here we go,

Re: simulate the deformation of a solid in inventor

LT.Rusty — Tue, 29 Mar 2016 18:18:15 GMT

Unfortunately, Inventor only works well with calculating deformations on isotropic materials, and even then only up to a certain point. Once you get outside the range of elastic deformation and into the realm of plastic deformation instead, Inventor goes a little screwy.

Your seals may or may not be isotropic, but they are certainly going to be well outside the range of deformation that Inventor can calculate on its own.

Re: simulate the deformation of a solid in inventor

oneshortplanck — Wed, 30 Mar 2016 07:08:52 GMT

Thankyou,

so i guess that Nastan is the tool to use?