Dear all,

According to thread: http://65.57.255.42/ubbthreads/ubbthreads.php?ubb=showflat&Number=14553

"The part factor “f2” is used to define an acceptable margin of safety between the material strength and operating stresses for three load cases.

1) Sustained excluding thermal loads (long term), where f2 = 0.67
2) Sustained including thermal loads (long term), where f2 = 0.83
3) Occasional (wind or earthquake or water hammer or blast loading, considered in combination with sustained loads excluding thermal effects (short term), where f2 = 0.89"

So,

If I use 0.67 as general, in cases with thermal loads the system is overstressed. But, if I use 0.67 for SUS and 0.83 for W+T+P the system is Ok!

How can I input different f2 factor for each load case?

Thanks in advance,

Miyamoto

Richard can you help me?

I'm teaching the seminar this week - I'll have someone else look at this.

We added a entry for an occasional load factor in the Load Case Options. I know that for ISO14692, CAESAR II will multiply the factor in the allowable stress field by this occasional load factor. Perhps you can use this to adjust your allowable stresses in UKOOA.

Dave,

For OCC I can change the multiplier, but for SUS and OPE I can't.

It would be good if we can use different allowable for each case.

Regards,

Miyamoto