aircraft loads and load path question
aircraft loads and load path question
(OP)
Hello everyone, i'm a new stresser just started in in the aircraft industry.
I would like some guidance on where to find resource that can explain to me how external loads on an aircraft produces internal loads that we use to analyze a piece of structure on the plane (like skin shear loads, stringers axial loads, etc...)
For some reason, shear loads and shear flow is so confusing to me because I don't know "Where" or "How" they came about?
Thanks so much in advance.
I would like some guidance on where to find resource that can explain to me how external loads on an aircraft produces internal loads that we use to analyze a piece of structure on the plane (like skin shear loads, stringers axial loads, etc...)
For some reason, shear loads and shear flow is so confusing to me because I don't know "Where" or "How" they came about?
Thanks so much in advance.





RE: aircraft loads and load path question
Aircraft Structures, Perry
Synthesis of Subsonic Airplane Design, Torenbeek
RE: aircraft loads and load path question
I will also check out Synthesis of Subsonic Airplane Design.
Thanks again
RE: aircraft loads and load path question
Structural Loads Analysis for Commercial Transport Aircraft htt
RE: aircraft loads and load path question
Raymer is another good overview book (like Torenbeek)
maybe we're being guuided by "i'm a new stresser ..." and think your interested in airplane internal loads ? maybe you're looking for an aerodynamics book ?
RE: aircraft loads and load path question
rb...
Yes i'm referring to airframe internal loads for stress analysis...I just wanted to get a really clear understanding how aircraft external loads (maneuver load, cargo load, cabin pressure loads) ...how it translate to the internal loads that I will use to do analysis.....
I think what lead me to this question is because i'm still confused about the concept of shear flow in the skin of fuselage/wing...could any body point me to any diagrams or explanation for this?
Thanks in advance...
RE: aircraft loads and load path question
Another option is for you to try finding an experience engineer and make him/her your mentor. Keep pestering your mentor until you get a grasp of it. If you still don't get it, ask around. One thing I've found over the years is that if the engineer knows "it" and "understands it", he/she can explain it clearly. Remember that you are at the early stages of your craft, so ask the experienced ones.
Let us know if you are still having problems. And remember, what you learned is school still applies!
NERT
inertia4u(at)gmail
drop me a line
-----
Nert
RE: aircraft loads and load path question
RE: aircraft loads and load path question
the wing/fuse joint loads balance the wing loads (and oddly enough the fusleage loads). it's easy to see in a determinate struted wing configuration, much harder to see in a redundant built-in wing (like on most large jets). part of the confusion is the complexity of the joint makes some of the redundancies penalising (ie adding to the load rather than reacting it).
but these complicated, redundant joints are everywhere in a plane, maybe this is just the part of the plane you're looking at now ?
RE: aircraft loads and load path question
-Kirby
Kirby Wilkerson
Remember, first define the problem, then solve it.
RE: aircraft loads and load path question
In general the internal loads will follow the shortest load path which is usually the stiffest. The stiffest load path also carries the biggest share of the load. Any change in direction of a load path will induce high local stresses due to bending, that is why the elements constituting a load path should be as direct as possible.
Regards
Andries