a_R - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
12

For ISO 14692 2017, specifies the long-term axial stress for a partially restrained hydraulic (R_test) condition.

Typical units (depending on your unit system):

  • lb/in2

  • KPa

  • N/mm²

  • For information on failure envelope points, see Figure B.1 of ISO 14692-2:2017.

  • If you do not specify a value for a_R and h_R, then the software uses a simplified failure envelope based on other defined envelope points: al(0:1), al(2:1), and hl(2:1).