Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by enachicago

  1. E

    Fracture Mechanics - Residual Strength/Crack Propagation

    Thank you so much for explaining it in a simple way so that I can understand your way of thinking.
  2. E

    Fracture Mechanics - Residual Strength/Crack Propagation

    Hello, I had previously looked at the reference you gave, but even though I understand what you did I still don't know why would Fty*Agross is equal to sigma*Anet. Yes, the force equation was made to be equal to yield, but why is it equal to sigma*Anet? When finding yield stress, is it found...
  3. E

    Fracture Mechanics - Residual Strength/Crack Propagation

    Hello first of all thank you very much for all the answers but is there a reference where this formula is written? or did you reach it from a ratio-proportion calculation? In other words, do we reach your formula when Fty*Agross=sigma*Anet and then t's cancel each other out?
  4. E

    Fracture Mechanics - Residual Strength/Crack Propagation

    Hello, I was reading dta guidelines about small antenna installation on top of the fuselage from Patrick Safarian and ı came across a problem and ı couldn't solve it. Can you help me about this? "If deltaP=8.9 psi, fuselage Radius=128", pitch(spacing)=1.2", hole diameter=0.188", t=0.062"...
  5. E

    Fracture Mechanics - Residual Strength

    Hello, I was reading dta guidelines about small antenna installation on top of the fuselage from Patrick Safarian and ı came across a problem and ı couldn't solve it. Can you help me about this? "If deltaP=8.9 psi, fuselage Radius=128", pitch(spacing)=1.2", hole diameter=0.188", t=0.062"...
  6. E

    statically determinate and indeterminate aircraft structure

    It says same things "For multi-load path, indeterminate structures, the airplane support structure stiffness can have astrong influence and therefore, the stiffness as well as the geometry should be simulated." but why is it because of deflections? why does stiffness strong influence when...
  7. E

    statically determinate and indeterminate aircraft structure

    It's not just about creating tests or analytics, it's about both at the same time because both need to have the same assumptions as much as possible. Boeing D6-55441 document says that if your structure is determinate then rigid fixture is enough for both testing analyzing but otherwise you need...
  8. E

    statically determinate and indeterminate aircraft structure

    Hello everyone, I'm currently working on a structural analysis for an aircraft cabin interior furnishing. In my research, I came across guidance in the Boeing D6-55441 document that discusses test fixture validation and the determination of whether a component should be modeled/tested using a...

Part and Inventory Search