Hi :
I am trying to check the strength of fail safe chord of a aircraft frame. I know the axial load on the skin creates moment on the frame. But I want to know what are the loads and moment acting on the inner and failsafe chord.
thanks
Hello All,
I have short edge margin condition of 1.36D on one of the part.Actually 3 parts of aluminum are joined together by bolts and one part has short edge margin.
All the parts have sufficient bearing strength.So if I understand right bearing failure occurs before shear-tear-out-failure.So...
Hi All:
I have high bearing stress for one of the part made of aluminum, the ultimate allowable bearing stress for aluminum is 140000PSI but the bearing stress I am getting is more than the allowable.
So since it is a compressive strees problem can I use ESDU method to reduce my bearing stress...
Hi All:
I am torqueing the nut so that assembly does'nt come out, I knoow the pre torque but I do not know how much this torque will create pre tension on nut and bolt.
So could anyone tell me the basic relation between torque and tension in a bolt.
Well I used T=FKD where F is the tensile...
Hi All:
I have steel axle(shaft)in aluminum part, and I doubt eventually corrosion might take place due dissimilar metals.SO in order to aviod this I am planning to use bushing to reduce corrsion but I am worried about that busing being soft material may not take the load and might fail to...
HI All:
Using Hertz contact formula I calculated contact stress for cylinder in contact with cylinderical socket but I dont know to which stress to compare this contact
stress.Actally I comapred with material bearing stress & calculated stress was less that bearing stress(got margin of saftey...
Hi All:
I am working on lifing mechines with handle, worm gear and pulley.
Weight to be lifted at the pulley is 200lb.I am applying 30 lbs on the handle (radius=8.5 in & I am using 20:1 worm gear reduction ratio.Handle is rotating at 30rpm).
This gear is rated for .23 HP and 1550 lbf*in...
