ASME VIII Design By Analysis with Ansys WB 15
ASME VIII Design By Analysis with Ansys WB 15
(OP)
I have to do a stress analysis of a ball valve according to ASME VIII part 5 (Design By Analysis) but i have some doubts.
What kind of linearization should be used in Ansys WB 15? Von Mises linearization is correct to use to evaluate membrane and bending+membrane along SCLs?
Thanks
Roberto
What kind of linearization should be used in Ansys WB 15? Von Mises linearization is correct to use to evaluate membrane and bending+membrane along SCLs?
Thanks
Roberto





RE: ASME VIII Design By Analysis with Ansys WB 15
Which stress to linearize?
RE: ASME VIII Design By Analysis with Ansys WB 15
Do yourself a favor and look at 5.2.3 Limit-load Analysis Method. In the long run it is a lot easier than the Elastic Stress Analysis Method. It is also less conservative.
Rick Fischer
Principal Engineer
Argonne National Laboratory
RE: ASME VIII Design By Analysis with Ansys WB 15
I would also note that for a complex geometry such as a valve, pay special attention to the caution that we provided in 5.2.1.2. Then read Rick's advice again. Although I would skip limit load and go straight to elastic-plastic, if for nothing else but satisfying protection against local failure.