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#45587 - 11/01/11 08:33 AM ASME B31.4-Chapter IX loads combination
Jerry K. Offline
Member

Registered: 01/04/01
Posts: 10
Loc: Houston, TX, USA
I'm still using Version 5.20, IT busy testing the latest one......
While doing spar's hull risers analysis, I ended up with a large number of load cases. Had 8 sets of global displacements, CS elements simulating misalignment on connectors at the soft tank, wave and current input. To simplify results reading, I used SignMin, SignMax and Max loads combination methods. In the final Max load combination, at certain elements calculated Code Combined (Equivalent) Stress is compaired to the Hoop Allowable Stress, giving false % of the Code Allowable stress. Have to go back to each individual Scalar load combination to get results of Code Stress reading (The highest of the Hoop, Longitudinal and Combined / Equivalent is only reported). Anybody encountered this kind of problem?
_________________________
Jerry K.
Houston

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#45599 - 11/01/11 09:35 PM Re: ASME B31.4-Chapter IX loads combination [Re: Jerry K.]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
See the attached document describing the usage of the "MAX" combination setting.


Attachments
MAX_Comb_LC.docx (447 downloads)

_________________________
Regards,
Richard Ay - Consultant

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#45612 - 11/02/11 07:34 AM Re: ASME B31.4-Chapter IX loads combination [Re: Jerry K.]
Jerry K. Offline
Member

Registered: 01/04/01
Posts: 10
Loc: Houston, TX, USA
Thank you Richard for a quick response.
Well explained by Nadia.
Never stop learning.
_________________________
Jerry K.
Houston

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