Dears

Material: A358 Gr316L CL1
Temperature: T1=37C T2=-64C
Sc=138 MPa, Sh=138 MPa
when i calculated Sa=1.25Sc+0.25Sh = 206.9 MPa ,
Yield stress= 172.4MPa

when we doing displacement stress range calculation computed value has to be compared with Sa but for this material only caesar ii v4.5 compare the calculated value with yield stress WHY


How could be allowable stress is greater than yield stress

pls give explanation

regards
pipeman