摘要
采用ABAQUS商业有限元软件对步进式加热炉内钢坯加热过程进行了分析计算,建立了加热炉内钢坯加热的热力耦合模型,计算了不同热送条件下,中心与表面的应力应变分布.结果表明:随着加热时间的延长及加热温度的提高,应力由铸坯表面向铸坯中心逐步增大;随着热送温度的升高,最大应变量逐步减少,应力存在一个拐点,且逐步出现双应力峰值.分析得出,在现有加热制度下,适合的热送温度在600℃左右.
The bloom heating-up process of a reheating furnace was calculated and analyzed using the FEM based commercial software ABAQUS.A thermal-mechanical coupling model was established and the distribution of stress and strain was calculated under different hot charging conditions.The results show that the stress increases from the bloom surface to center with increasing the heating time and temperature.As the hot charging temperature rises,the maximum strain gradually decreases with a turning point of stress appearing,evolving double peak stress curve.The analysis indicates that the proper hot charging temperature is about 600 ℃ in the existing heating system.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第2期244-247,251,共5页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金青年基金资助项目(51004030
50901014)
中央高校基本科研业务费专项资金资助项目(N100102001
N100402006)
关键词
加热炉
大方坯
温度场
有限元法
应力应变
reheating furnace
bloom
temperature field
FEM
stress and strain
