Hi,

Just wana to clear a very basic concept !!

Suppose load cases are designed like this :
1.WW+HP HYD
2.W+T1+P1 OPE for operating temperature case
3.W+T2+P1 OPE for maximum system temperature case
4.W+T3+P1 OPE for minimum system temperature case
5.L2-L5 EXP
6.L3-L5 EXP
7.L4-L5 EXP
8.L3-L4 EXP for complete stress range

My question is that can I considered Load cases L8 i.e. L3-L4 as L6-L7 ??


Thanks

Nitesh

Your case 5 isn't correct. Can you fix this so we can respond properly?

Sorry Richard !!

Please find below updated serial no :

L1=WW+HP HYD
L2=W+T1+P1 OPE for operating temperature case
L3=W+T2+P1 OPE for maximum system temperature case
L4=W+T3+P1 OPE for minimum system temperature case
L5=W+P1 SUS
L6=L2-L5 EXP
L7=L3-L5 EXP
L8=L4-L5 EXP
L9=L3-L4 EXP for complete stress range

My question is that can I considered Load cases L9 i.e. L3-L4 as L7-L8 ??

In general I don't think so. The idea of "L7-L8" determines a range between two ranges. I don't think that is the same thing as the range between "L3-L4".

(Your idea may work for a linear model, or even a simple non-linear model. However, I would use "L3-L4", it is much more obvious and justifiable.

Thanks Richard !!

I commented on Report to change Load cases which may be mathematically correct but logically not a good approach.

May be you can try also by comparing with Lx+Ly where Lx:(L3-L2) and Ly:(L2-L4)