@r13 & @SSCon: you've both given me some great feedback and things to consider. I appreciate you both taking the time to educate someone like myself new in the profession. I'll be investigating some of the items you mentioned today and might solicit further responses if your willing to give...
@r13: That thread was deleted because I'm an idiot and I triple-posted this thread. I saw your post in the other (now deleted) thread. What do you mean by "the local yielding is non-progress"?
Thank you,
Finn McCool
@SScon: I think I see what you may be saying, though correct me if I'm wrong: what your saying is that the standard allows a certain amount of yielding in the lug, and Dr. WIlliams' criticism is erroneous because he is defining ANY yielding as failure.
Thank you,
Finn McCool
@SScon: I see A-4.4:
Analysis of a lifting device with discontinuities using
linear finite element analysis will typically show peak
stresses that indicate failure, where failure is defined as
the point at which the applied load reaches the loss of
function (or limit state) of the part or...
@SScon: Thank you for the reference -- I will absolutely look at that. I agree that empirical data should win in a match with theory; I was unaware that what you reference existed, and I'm looking forward to investigating it.
Why is it you say "this is interesting, and is unfortunately an...
JStephen,
I apologize - thank you for bringing that to my attention. I thought I was posting in three separate boards and thus not triple posting. I was wrong; will avoid in the future.
Honestly, I have done my due diligence and spent a good amount of time searching the board for an answer...
Hello,
I have been developing a design procedure for lifting lugs based on ASME BTH-1, but it seems that there's a potential failure mode that BHT-1 doesn't address. It doesn't seem to address Hertzian contact stresses that arise in the lug, which produce a maximum shear stress in the lug some...
