Daill Do you have a copy of Bruhn? Both of those references are basically summarized in Bruhn. Thus wrinkling failure is a combination of skin and flange failure and could occur due to high shear stress as well. Your email address will be kept confidential. Comments are welcomed and encouraged on AbbottAerospace.
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Which is more critical? That depends on a bunch of variables; just do both checks. RE: Wrinkling vs Inter-rivet buckling 2 GodzillaSuit Aerospace 3 Mar 16 Inter-rivet buckling is an instability that occurs between two adjacent rivets in a stiffener, the strap of skin between two rivets buckles as if it were a wide column supported by a rivet on each end.
Wrinkling is a skin buckle that continues through a stiffener attach flange possibly to the adjacent panel, the behavior is mostly driven by rivet spacing and the distance between the rivets and an upstanding stiffener web.
Which is more critical depends on the panel. Both of those references are basically summarized in Bruhn. RE: Wrinkling vs Inter-rivet buckling dgapilot Aeronautics 3 Mar 16 Something to consider when talking about inter rivet buckling, is the observed item truly inter rivet buckling, or is it something caused by displaced material from bucking the rivets too hard. Its not common but when noticed it was assumed that it was stress induced,after much concern and study,it was reazlized that it was shop practices that were to blame.
The spring in the cleco becomes worn and losses its ability to hold tightly the two pieces being joined,and slippage occurs,rather than stopping at that point most riveters continue the operation,all looks pretty normal,but after a little while the excess material that had bunched up shows up as a ripple ot wrinkle. Some of these temporary holding or clamping devices have been arounr since before ww-2,ans are still in use.
My findings are follows: - At IRB, the skin between fasteners buckle locally. This do no deform the attached flange. Thus wrinkling failure is a combination of skin and flange failure and could occur due to high shear stress as well. At both these instances, these loads will induce tension loads on attached fasteners and fasteners need to be checked in tension Thank you for your replies. I at one time thought about re doing it in my logic pattern to make it easier to use or more systematic,but it may well and probably is my logic pattern that is not logical,so I left well enough alone,probably be a legal nightmare in itself.
Your conclusions are concise and to the point,and I can see no error it their logic,good rules to go by. RE: Wrinkling vs Inter-rivet buckling.
INTER RIVET BUCKLING PDF
Malakree My findings are follows: The handbook of structural stability is a good reference too pdf: Receive monthly updates on new spreadsheets, additions to the Technical Library, Market News and Information, exclusive content and more. Comments containing profanity will be deleted. An investigation of inter-rivet buckling of aircraft panels in compression After buclling first post I did some digging into brugn and also with a research paper. Defense manufacturing is all about project manufacturing and project accounting. Download Now Defense manufacturing is all about project manufacturing and project accounting.
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