大连理工大学学报2001，Vol.41Issue(2)：192-196,5.
乙烯裂解炉管中时变应力场和蠕变损伤分数数值模拟
Numerical simulation on stress and creep damage fraction in ethylene cracking tube
摘要
Abstract
After analyzing typical operation conditions of ethylene crackingtubes, a finite element calculation model under interactions of temperature, intern al pressure, carburization and creep is founded. Stress distribution and creep damage distribution are simulated for cracking tubes made from HK40 steel at 1 17 3 K. The calculated results show that carburization is the main cause of the failure of tubes. As for the way and location of the failure of tubes and the life of tubes, the calculated results are in good agreement with the actual results.关键词
有限元/应力场/寿命/乙烯裂解炉管分类
矿业与冶金引用本文复制引用
祝美丽,尹友,汪涛,刘书田,张俊善..乙烯裂解炉管中时变应力场和蠕变损伤分数数值模拟[J].大连理工大学学报,2001,41(2):192-196,5.基金项目
国家自然科学基金资助项目(50071016). （50071016）
