hl(1:1) - CAESAR II - Help

CAESAR II Users Guide (2019 Service Pack 1)

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English
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CAESAR II
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CAESAR II Version
11.0 (2019)

Specifies the long-term hoop stress at 1:1 stress ratio. According to ISO 14692, hoop stress has the same value as that for axial stresses at a 1:1 stress ratio. That is, hl(1:1) = al(1:1). However, CAESAR II allows a different value for al(1:1) and hl(1:1) for a generalized failure profile. In this case, CAESAR II displays a warning message displays in the Error Checker.

Typical units (depending on your unit system):

  • lb/in2

  • KPa

  • N/mm²

  • If you do not define al(1:1) and hl(1:1), the software uses a simplified envelope for plain pipe.

  • If you specify al(1:1) and leave hl(1:1) blank, the software assumes that hl(1:1) is equal to al(1:1) and displays a warning message in the Error Checker.