Simulate: issue with measure on component interface for measuring shear
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Simulate: issue with measure on component interface for measuring shear
I'm having an issue adding a measure. I have a pair of nested cones that represent the front of an aerodynamic body. There is a pressure applied to the outside of the outer cone. There is a bonded interface between the two cones. So, this is like a cone with a thin coating of a different material.
I want to know if the coating will delaminate. I want to put a measure on a line along the inner surface of the cone so I can measure shear. However, I can't figure out how to get shear in a specific axis (not one of the primary axes), and whenever I add a measure to a line the study will no longer run.
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Hi @SB_10895015 ,
As already suggested through case 17616971. you might consider creating a new Creo Simulate coordinate system with axes along the desired direction/curve, and use an autogem control for hard curve. A measure should then work on the hard curve. This could also be helpful in reviewing fringe plots with a capping surface applied that would allow you to perform dynamic query operations, and also manipulate legend values to query the results in depth.
Maybe the above could be a simple solution along with Maximum Shear quantity in Fringe plot (capping surface). You could also adjust results to show only one component, a surface of interest, etc. The main challenge is there is no conical coordinate system.
About Friction and contact, I do not expect you would know coefficient of friction of the bond since the epoxy in real like would encounter relative motion from bond/material failure rather than sliding/slippage. Maybe the material data sheet might have this information, but it’s not something I would expect is typical. If it is available, you could utilize the slippage measures as previously mentioned. Again, friction needs to be a known value, not something that can be measured.
Ideally, a solid model with known structural properties of the bonding agent applied would be a solid route. While Creo Simulate generally handles linear materials (linear portion of stress strain curve of Steel for example), it does have elastoplastic and hyper-elastic non-linear material models as I shared with https://support.ptc.com/cs/cs_27/howto/mst12563/mst12563.htm
Lastly, perhaps a lesser known/used model type in Simulate might interest you, which is 2D axisymmetric. These articles may be helpful as well: https://www.ptc.com/en/support/article/CS104684, https://www.ptc.com/en/support/article/CS52107, & https://www.ptc.com/en/support/article/CS202108
That idealized analysis type will not only run quicker, but will be even simpler if WCS is oriented as desired along bond interface, however, you can create a CSYS in Simulate along the bond interface to use for measures & other results.
Regards.
Amol Lungare
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Potentially. I will need to get permission. I will check tomorrow and see.
-S
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Please find, attached, the file. This includes the Simulate components.
Note: the measure "interface_shear"
Along that line, I want to generate a plot of shear in-plane with the surface of the inner cone.
Since the original post, I managed to get the model to run with this measure in place, by changing the mesh rules.
I still don't know how to get the shear in-plane.
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Hi @SB_10895015 ,
As already suggested through case 17616971. you might consider creating a new Creo Simulate coordinate system with axes along the desired direction/curve, and use an autogem control for hard curve. A measure should then work on the hard curve. This could also be helpful in reviewing fringe plots with a capping surface applied that would allow you to perform dynamic query operations, and also manipulate legend values to query the results in depth.
Maybe the above could be a simple solution along with Maximum Shear quantity in Fringe plot (capping surface). You could also adjust results to show only one component, a surface of interest, etc. The main challenge is there is no conical coordinate system.
About Friction and contact, I do not expect you would know coefficient of friction of the bond since the epoxy in real like would encounter relative motion from bond/material failure rather than sliding/slippage. Maybe the material data sheet might have this information, but it’s not something I would expect is typical. If it is available, you could utilize the slippage measures as previously mentioned. Again, friction needs to be a known value, not something that can be measured.
Ideally, a solid model with known structural properties of the bonding agent applied would be a solid route. While Creo Simulate generally handles linear materials (linear portion of stress strain curve of Steel for example), it does have elastoplastic and hyper-elastic non-linear material models as I shared with https://support.ptc.com/cs/cs_27/howto/mst12563/mst12563.htm
Lastly, perhaps a lesser known/used model type in Simulate might interest you, which is 2D axisymmetric. These articles may be helpful as well: https://www.ptc.com/en/support/article/CS104684, https://www.ptc.com/en/support/article/CS52107, & https://www.ptc.com/en/support/article/CS202108
That idealized analysis type will not only run quicker, but will be even simpler if WCS is oriented as desired along bond interface, however, you can create a CSYS in Simulate along the bond interface to use for measures & other results.
Regards.
Amol Lungare
