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Generating shear waves induced by a piston hitting to a model
Posted 18 feb 2013, 10:16 GMT-5 Structural Mechanics 1 Reply
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I want to generate sinusoidal shear waves and observe its propagation induced by a piston hitting a 3D model. I think what I would like to do is similar to paper presented by S.Audiere (www.comsol.com/papers/8297/). I am using Solid Mechanics Module but I do not know how to make a piston hit to a 3D model. Should I use boundary load or something else?
1 Reply Last Post 20 feb 2013, 01:21 GMT-5
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Posted:
1 decade ago
Hi
modelling a true contact / impact is tricky by itself, but you can (in transient solver mode) use a gaussian impulse (in space and in time) hitting your structure, and stay in traditional "solid".
To debug the model, it might be useful to run with "inertia terms off" then to see the true "ringing" turn it ON for the full response, once the model is set up and first validated
--
Good luck
Ivar
modelling a true contact / impact is tricky by itself, but you can (in transient solver mode) use a gaussian impulse (in space and in time) hitting your structure, and stay in traditional "solid".
To debug the model, it might be useful to run with "inertia terms off" then to see the true "ringing" turn it ON for the full response, once the model is set up and first validated
--
Good luck
Ivar