Hello
I have one rather basic question: If I were to simulate a hoop pulling down on a hook, should all faces projected to be exerted a downward force be selected to have an external load like this?
Or, should only the faces with which the hoop makes contact be selected, i.e. the center-top one?
Thank you
John
Only contact surfaces.
I see. In that case, if I were to simulate a hoop pulling down on the hook, would I need to split the horizontal rod and select only the faces that actually would make contact with the hoop? The hoop itself is made of a wire, so the point of contact would likely be very small in area though. Would this kind of refinement make much of a difference to the result?
John Munroe:
I see. In that case, if I were to simulate a hoop pulling down on the hook, would I need to split the horizontal rod and select only the faces that actually would make contact with the hoop?
Yes I would recommend that.
The hoop itself is made of a wire, so the point of contact would likely be very small in area though. Would this kind of refinement make much of a difference to the result?
No need to make too much refinement. Simple use a rectangle with outer dimension equal to hook width/length that will be in contact. For example if it is like a spring then total ht. of the spring for rectangle dimensions.
Thank you, Deepak. In your last sentence, do you mean the total "height" of the spring for rectangular dimensions? Why the height of the spring?
Was only giving example of spring. For e.g. if you are pulling spring then you don't need to split the faces with multiple contours/sketches to create actual contact area. So instead of that a simple height of spring can be used for the sketch dimension for splitting. Hope I made it clear.
I *think* I get what you mean. By 'height of spring', do you mean the thickness of the wire? My understanding of you advice is that the contact area of the wire could simply be a rectangular split on the hook - as if the round wire was flat.
Hopefully I got it right.
Yes that hat I meant. I was height of spring assuming you have more than one loop.
Yes I would recommend that.
No need to make too much refinement. Simple use a rectangle with outer dimension equal to hook width/length that will be in contact. For example if it is like a spring then total ht. of the spring for rectangle dimensions.