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Thanks everyone! I'll keep digging!

Thanks for the information Wil. Focusing on tension at the moment but I suppose combined tension-shear is where I'm heading towards for some locations. I am interested in finding theoretical methods for estimation of life,not necessarily actual testing methods since I'm working on something new...

Hello, I have been looking into the fatigue life and strength of bolts and have come across NAS6704, who's spec states that it is made of A286 UNS 66286 material. I've looked into finding cycles to failures using a developed S-N curve and also looked into the strain-life approach per guidance...

Thanks all, I'll be looking at the resources posted.

I am looking for Young's Modulus and coefficient of thermal expansion data for a number of fasteners, for example, MS24677/NAS1352. The spec sheets for these specify minimum tensile strength (psi) and also the specific strength of each bolt per size (lbs). However, under material it simply...

Thanks rb1957, SparWeb--> reading more into this and definitely combing through Mil-Hdbk-60 now. I was wondering if there was a rule of thumb for pre-load as a % of yield for a tension joint vs a shear joint but that doesn't seem to exist. General guidelines suggest a set pre-load independent of...

I am calculating the required installation torque/pre-load for a series of fasteners. I am using the basic formula of: T=KFd where K is the nut factor, F is the bolt preload, and d is the bolt nominal diameter. Using the Machinery's Handbook 30th edition as a reference I calculate the preload...

Hello Will, I am working toward USA requirements but the CASA reqs provided additional detailed information - I figured I'd gather the AC 43.13-1B, SAE ARP1870A, and the CASA documents to make sure I covered my basis and didn't miss anything. The SAE document also specifies a wire-brush for...

Thank you John, I'll read more on that. Wil, yes that is correct, my mistake.

I looking at bonding and grounding of aircraft components. This process includes surface cleaning to ensure good conductivity between contacting parts. My main sources are AC 21-99 and SAE ARP1870A. The two have directions on cleaning of aluminum surfaces and I am trying to reconcile them and...

Thank you again! Great info.

Thank you Wil! This makes sense. It didn't occur to me that 'lined through' referred to the crossed out data. Your insight is much appreciated!

Hello, the spec for this fastener lists "Minimum Breaking Strength" in pounds and has a note saying: "MINIMUM BREAKING STRENGTH VALUES ARE BASED ON 180 KSI HEAT TREATMENT. LINED THROUGH STRENGTH VALUES WERE BASED ON 170 KSI" Perhaps I am not familiar with the term, but what does 'lined through...