关于持续应力的问题？ 关于持续应力的解释 引自coade inc论坛 “you need to read the code. sustained stress combines longitudinal stresses, mainly weight and pressure (axial) stress. axial pressure stress is by definition half of hoop stress in a pipe. for example, if your weight only stress were 5,000 psi and axial pressure stress 15,000psi you would be within a sustained stres limit of 20,000 psi, but hoop stress would be unacceptable at 30,000psi. mill tolerance and corrosion allowance are taken into account in sustained stress equations. weights are based on nominal wall as are all stiffness equations by default, although the set-up can alter this.” 仅供参考！查看更多
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