Why is an upper limit set for take over or flange fillet radius?
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As the title suggests, the larger the roundness, the lower the stress value
It should be the case that once it reaches a certain size, it loses its effectiveness; there must be a range within which it is effective, and beyond that it becomes meaningless.
It makes no sense; in fact, the inner fillet radius does nothing to reduce the peak stress at the joint.
This post was last edited by zhangjuhua on 2015-12-9 at 19:58. It’s too large; it might remove the effective reinforcing materials, which would have the opposite effect
I asked about this once before, but I didn’t get any answer in the end.
Personally, I think it should be relaxed to no more than 1/2 of the takeover or cylinder wall thickness, whichever is smaller.
Reinforcement has a certain effective range; beyond it, it no longer serves any purpose. Moreover, for external chamfers, on very small fittings, creating large chamfers doesn’t look good – it gives them a sort of thick neck appearance. For internal chamfering, it is possible to reduce peak stress within a certain range. However, once a certain level is reached, it will instead reduce the internal reinforcement area, which is detrimental to the structure.