文献类型：期刊文献

中文题名：用蠕变内应力预测高温管道残余寿命

英文题名：Prediction of Residual Life of High Temperature Piping by Creep Internal Stresses

作者：忻云彪[1];王正东[1];吴东棣[1]

机构：[1]华东化工学院化工机械研究所

年份：1992

卷号：18

期号：5

起止页码：651

中文期刊名：华东化工学院学报

收录：国家哲学社会科学学术期刊数据库;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：蠕变;应力;管道;预测

外文关键词：creep; creep test; constant strain rate(CSR); creep internal stress; residual life; high temperature piping

摘要：用恒应变速率法测定高温管道蠕变内应力并预测其残余寿命,不管是以蠕变极限为失效准则,还是以持久强度为失效准则,都可获得令人满意的结果;而以蠕变极限为失效准则的蠕变内应力法与常规的以蠕变试验为基础的等温外推法相比,还具有试验时间短的优点。
Creep internal stress of high temperature piping measured by constant strain rate (CSR) method has been applied to predicting the residual life of high temperature piping.The results show that the approach to the prediction of residual life can reasonably meet the needs with both the creep limit failure criterion and the rupture life criterion.It is also shown that under the creep limit failure criterion, the creep internal stress method has the advantage of less test time in comparison with the isothermal extrapolation method based on conventional creep tests.