Good morning/evening, Sirs
I am thinking of the effect of local stress concentrations on the strength of the metal parts. In order to clarify my ideas, I have thought of a simple test:
Let's imagine we have a test specimen A (made of aluminium, or steel) with a rectangular section of width "a"...
Hello,
I am updating an old calculation with new loads.
It is a channel type tension fitting analysis based on Lockheed 88a. In the old calculation, in order to improve the RF, a filler was added.
The way the RF was calculated was using an *equivalent end pad thickness*:
t_eq = SQRT (t_pad^2 +...
Hello,
I have never used shell elements in Marc before. I would appreciete it very much if you could answer these two questions:
1. Have the shell elements stiffness in the rotation normal to the shell plane?
2. If not, how can this problem be fixed?
Thanks in advance.
Hello,
Lets say that I have a F.E. model of my structure. the structure is made of a material whose ultimate tension allowable stress is Ftu.
I perform an analysis for an ultimate load case and I read the maximum stress Smax.
- If the analysis is LINEAR I would define the reserve factor like...
Hello,
* Problem:
lets say that we have 2 Al plates (0.2 inches thick) joined by means of several Ti fasteners. At Ultimate Load, the load of one of the fasteners is higher than the Fbru (ultimate bearing allowable).
* Questions:
1. Is it possible to consider that this fastener can take load...
Hello
I have a FE model with non linear material properties.
If I run a SOL 106, will I be able to see the buckling modes?
Tips:
1. There is also a method (that implies the use of PARAM,BUCKLING among other things) to calculate the buckling modes. But I´m not talking about that, just about a...
This is my first post: hello everybody.
I am working on the skin (aluminium) of a wing. I am studying the stringers run out. Between the end of the stringer and the supporting rib there is a distance of about 1.6 inches. This region of the skin must carry the vertical shear load of the stringer...
