Specifies the long-term hoop stress at a 2:1 stress ratio. According to ISO 14692, hoop stress is twice the axial stress at a 2:1 stress ratio. That is, shl(2:1)= 2*sal(2:1). However, CAESAR II allows shl(2:1) to have a different value than twice of sal(2:1). In this case, CAESAR II displays a warning message in the Error Checker.
Typical units (depending on your unit system):
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lb/in2
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KPa
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N/mm²
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If you specify al(2:1) and leave hl(2:1) blank, CAESAR II assumes that hl(2:1) is equal to twice al(2:1) and displays a warning message in the error checker. For more information, see al(2:1).
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For information on failure envelope points, see Figure B.1 of ISO 14692-2:2017.