Hello guys
Working on some fatigue analysis for pressure connector.
I need to get fatigue result for it. It is loaded with internal pressure , two external load and one cylic load.
I tried to make solution combination.
In first I put all load inculuding cyclic load ( as static force ) , other one without that.
In fatigue tool I put type : non proportional.
Mean stress theory goodman.
My problem is: Von Misses stress is 320 MPa but I get equivalent alternating stress only 5MPa. Cyclic load is only 25 kg so if you thing about alternating stress it is possible. But still I m expecting something from pre-stress.
Any advice about this mean stress.
Best regards
Working on some fatigue analysis for pressure connector.
I need to get fatigue result for it. It is loaded with internal pressure , two external load and one cylic load.
I tried to make solution combination.
In first I put all load inculuding cyclic load ( as static force ) , other one without that.
In fatigue tool I put type : non proportional.
Mean stress theory goodman.
My problem is: Von Misses stress is 320 MPa but I get equivalent alternating stress only 5MPa. Cyclic load is only 25 kg so if you thing about alternating stress it is possible. But still I m expecting something from pre-stress.
Any advice about this mean stress.
Best regards