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israelkk, you are right, I know I can always approximate the S-N curve and that's what I am going to do. Thank you for your help.

TVP, I cannot choose what material to use; it is a standard material, available in the laboratory. If I don't find anything about 6082T4, I will have to approximate.

Yes, the material is in our laboratory. I have to calculate the expected life of an exsisiting structure.

Yes, ok, israelkk, I will do a fatigue calculation after that, that means that any approximation in the S-N curve will affect life of the component. I know how it is done, but prefer not to do this. Thank you. Delyan Malchev

Thanks TVP, what You say is right. I'm looking for this data since a week without any success. Do You think that T6 will have much different properties than T4? Regards Delyan Malchev

Hallo, I cannot find fatigue material parameters (S-N Curve) of the EN AW 6082 T4 (DIN AlMgSi1 F21) Aluminium Alloy. If anyone knows sth. about please help. D. Malchev

Ths, i will do so. D. Malchev

Hi, I am trying to generate a time history from PSD data. I was trying with the Matlab IFFT functions without having good results. Finally I found a Matlab Function posted by Mr. Irvine called psd_syn.m in thread384-124143, however the password is not working any more. Does anyone know another...