Sorry to send you again since I found several mistakes and here they are:
Got three questions for you:
I am using Rifest to assess weld strength now. I use FAT100, Hot spot stress, amplitude spectrum. Got aBK =1.023 for 5million cycles. I thought I could get aBK less than 1 if I reduce number of cycles. However, I couldn't even I reduced to 10000 cycles and it still shows aBK=1.023. Found SBKmax is a limit, no matter how larger KBK is. Guess it is for elastic with yield stress limit only?
For amplitude spectrum, if I specify S1 is not the largest, I will get different answer for defined the largest S1
Are static results shown right since I use hot spot stress?