Strength and Fatigue Performance of Lug (FEM presentation)
Strength and Fatigue Performance of Lug (FEM presentation)
(OP)
Hi,
I found the following document online:
http:/ /www.aging aircraftco nference.o rg/all_fil es/43/43c/ 99_ppt.pdf
Now, I am thinking about the classical (handcalc) lug analysis under oblique load as per BRUHN Method § D1.11. We may also consider rework in our dimensions. But, I believe that we may be too much conservative by adding our load with the radial load due to press-fit effect. Because, by loading our lug we are actually relieving the load due to press-fit at load application direction (at least).
I guess that the outcome of the above presentation confirms my statement. Please let me know about your experience?
Thanks,
A.A.Y.
I found the following document online:
http:/
Now, I am thinking about the classical (handcalc) lug analysis under oblique load as per BRUHN Method § D1.11. We may also consider rework in our dimensions. But, I believe that we may be too much conservative by adding our load with the radial load due to press-fit effect. Because, by loading our lug we are actually relieving the load due to press-fit at load application direction (at least).
I guess that the outcome of the above presentation confirms my statement. Please let me know about your experience?
Thanks,
A.A.Y.





RE: Strength and Fatigue Performance of Lug (FEM presentation)
i think superposition is a valid approach, i don't see anything here that proposes an alternative. from my experience, be carefull generalising anything about lugs !
RE: Strength and Fatigue Performance of Lug (FEM presentation)
RE: Strength and Fatigue Performance of Lug (FEM presentation)
Thank you for your response. I am agree with you, I think that superposition is O.K. even if it might be too conservative. As you mentioned, by generalization we may take an unsafe approach.
A.A.Y.