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#221 - 11/01/00 06:44 AM Expansion Allowable Stress Range
Edgar Rincón Offline
Member

Registered: 11/01/00
Posts: 2
Loc: Maracaibo, Zulia, Venezuela
A.R.C. Markl in his paper "Piping Flexibility Analysis" set the Expansion Allowable Stress Range so as not to exceed twice the yield stress, times a safety factor, times a cyclic reduction factor minus the mean stress. The total stress range (expansion plus sustained)was set as twice the yield stress.
I don´t know how the equation for the Expansion Allowable Stress Range was set:
SA < f(1.25 Sc + 1.25 Sh) - Sl.

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#222 - 11/01/00 07:25 AM Re: Expansion Allowable Stress Range
John Breen Offline
Member

Registered: 03/09/00
Posts: 482
Loc: Pittsburgh, PA (& Texas)
Hi Edgar,

I think the answer that you are looking for can be found in a previous thread. See the discussion on this board below under:

PRACTICAL USAGE OF LIBERAL ALLOWABLE STRESS.

By all means, if you have further questions please post them on this board.

Best regards, John
_________________________
John Breen

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#223 - 11/01/00 07:38 AM Re: Expansion Allowable Stress Range
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6004
Loc: Houston, Texas, USA
The direct link to the thread John mentions is: http://www.coade.com/ubb/Forum1/HTML/000057.html .

------------------
Regards,
Richard Ay (COADE, Inc.)
_________________________
Regards,
Richard Ay

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