摘要
在最新版B31.3-2022中,应力范围系数计算公式进行更新,这是几十年来,B31.3第一次更新管道疲劳计算公式,应力范围系数的斜率从-1/5变为-1/3,随着疲劳次数增加,应力范围系数更为苛刻。根据其参考文献讲述其修改原因和相应原理,并根据实际案例计算对比其计算结果,为后续实际应用提供参考。
In the latest version of B31.3-2022,the calculation formula for stress range factor had been updated.This is the first time in decades that B31.3 has updated the pipeline fatigue calculation formula.The slope of the stress range coefficient has changed from-1/5 to-1/3,and as the number of fatigue cycles increases,the stress range factor is more stringent.This article describes the reasons for its modification and corresponding principles based on its references,and compares its calculation results based on actual cases,providing reference for subsequent practical applications.
作者
何旭东
汪成文
He Xudong;Wang Chengwen(Wuhuan Engineering Co.,Ltd.,Wuhan 432000,China)
出处
《山东化工》
CAS
2024年第18期173-175,共3页
Shandong Chemical Industry
