Code Case N-759-2
Code Case N-759-2
(OP)
Hello,
please is there someone who can help me to understand the way of calculating allowable compressive stress described in N-759-2?
I need to know what is the relation between the equations shown in Chapter 2 and 3. Is it so, that the one should at first calculate for example Fhe stress with FS = 1 using equation (3-2), then find the FS in Chapter 2.2 and with this go to Paragraph 2.1 to obtain the allowable stress Fha?
Thanks for any comment.
please is there someone who can help me to understand the way of calculating allowable compressive stress described in N-759-2?
I need to know what is the relation between the equations shown in Chapter 2 and 3. Is it so, that the one should at first calculate for example Fhe stress with FS = 1 using equation (3-2), then find the FS in Chapter 2.2 and with this go to Paragraph 2.1 to obtain the allowable stress Fha?
Thanks for any comment.





RE: Code Case N-759-2
The equations in Paragraph 3.1 apply to Carbon or Low Alloy steels only. If the one needs to use them for another material, the equations in Paragraph 2 will serve to correct the stresses. The calculation is itterative process, so at first it is necessary to find the predicted buckling stress with FS=1 and then performed the calculation once again with FS from Paragraph 2.2.