HELP Calculate stress applied to slip direction

[akhanijow]

Hi All,
Im having some trouble in one of my classes and can't figure out how to do the following:

If a single crystal of an FCC metal yields with an applied load of 1MPa in the [1 -1 2] direction, at what stress would the same metal yield if the load were applied in the [0 1 4] direction. The problem can be solved by using (1 1 1) as the slip plane.

Any help would be greatly appreciated! I am pretty sure this class is going to kill me.

 

[Mapes]

Hi akhanijow, welcome to PF. Do you know how to calculate the resolved stress on a certain plane due to a load on another plane? (This is sometimes called the Schmidt factor.)

 

[akhanijow]

Hi, He never really tought us that in class. He showed us:

(u₁u₂*v₁v₂*w₁w) / [sqrt(((u₁)^2+(v₁)^2+(w₁)^2) * ((u₂)^2+(v₂)^2+(w₂)^2)

 

[Gokul43201]

What is your textbook? Please read the section on critical resolved shear stress (on a single crystal).

Henceforth, use the Homework & Coursework section of the forums (see my signature) for questions like this.