bljnv
Mechanical
- Sep 17, 2003
- 70
I am referring to BS 7608-1993 standard.
In section 3.1, it says the fatigue analysis procedure for welded structures is based on the assumption that only ranges of cyclic stress are considered for evaluating fatigue life i.e. mean stresses are neglected.
But for unwelded parts the mean stress correction is carried out while evaluating fatigue life.
I request the members to explain the why only range is considered for welded structures.
Thanks in advance.
In section 3.1, it says the fatigue analysis procedure for welded structures is based on the assumption that only ranges of cyclic stress are considered for evaluating fatigue life i.e. mean stresses are neglected.
But for unwelded parts the mean stress correction is carried out while evaluating fatigue life.
I request the members to explain the why only range is considered for welded structures.
Thanks in advance.