I am trying to model an energy dissipater element that can undergo plastic deformation when contacted by a body, e.g. elastic perfectly plastic relationship

MTV over 1 year ago

I have tried using a sensor as described in Article Number

000002688:

What I have so far:

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Sensor event definition

.MODEL_1.Deformation - SENVAL(DeformationSensor)

Sensor event evaluation:

.MODEL_1.Deformation

SForce:

IF( .MODEL_1.Deformation: forceValue, 0, 0 )

Questions:

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I am finding it difficult to figure out how to incorporate the plastic deformation. According to me plasticDeformation = SENVAL(DeformationSensor) therefore the force becomes (where force value: f= min(kx, plasticForceValue):

IF( .MODEL_1.Deformation + plasticDeformation: forceValue, 0, 0 ) but this is obviously incomplete and incorrect.

Is the sensor approach correct for this application, or do I need to look at doing a subroutine? Is there another approach that will work?

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0 MTV over 1 year ago

Hi JSlat, thanks very much for the assistance. I have managed to capture the maximum displacement using a sensor but, as soon as I pass this back to my force and subtract it from the 'free length' the sensor data changes and it does'nt work. I will set everything up again and share a cmd file here
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0 MTV over 1 year ago

Hi JSlat, thanks very much for the assistance. I have managed to capture the maximum displacement using a sensor but, as soon as I pass this back to my force and subtract it from the 'free length' the sensor data changes and it does'nt work. I will set everything up again and share a cmd file here
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