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 Jesper Slattengren over 1 year ago

Most likely it is bouncing on the contact force between the stamp and the ground. Or, as you say, if your elastic component is too low, that might cause the bouncing.

Best way to study this is no use displacement for the x-axis, not time.
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0 Jesper Slattengren over 1 year ago

Most likely it is bouncing on the contact force between the stamp and the ground. Or, as you say, if your elastic component is too low, that might cause the bouncing.

Best way to study this is no use displacement for the x-axis, not time.
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