南京理工大学学报（自然科学版）2026，Vol.50Issue(1)：98-104,7.DOI:10.14177/j.cnki.32-1397n.2026.50.01.010
硝化棉冲孔和切割工艺的热机械行为有限元分析
Finite element analysis of thermo-mechanical behavior in nitrocellulose punching and cutting processes
姜学池 1武新光 2刘欣 2杨向锦 2陈元元 2曹尚 2周昊 1侯静1
作者信息
- 1. 南京理工大学 化学与化工学院,江苏 南京 210094
- 2. 西安北方惠安化学工业有限公司,陕西 西安 710300
- 折叠
摘要
Abstract
To address thermo-mechanical coupling behavior in high-risk nitrocellulose processing operations such as punching and cutting,we established a finite element analysis framework integrating a 3D transient temperature field with a Johnson-Cook constitutive model,overcoming the applicability limitations of traditional metal machining models for energetic materials.By establishing a unified multi-process simulation framework,we quantitatively revealed the dynamic impact mechanisms of frictional heat and plastic deformation heat on temperature/stress fields:localized heat accumulation during punching caused a 12.1℃temperature rise and 52.1 MPa peak stress;high strain rates and complex tool motion during cutting resulted in a peak temperature of 80.7℃and a peak stress of 154.4 MPa.Demonstrating that thermo-mechanical responses in both processes remain within nitrocellulose's safety thresholds,we validated the feasibility of high-speed parameters of punching speed 3 000 mm/s and cutting speed 300 r/min.关键词
硝化棉/热机械分析/有限元/加工安全性/摩擦热Key words
nitrocellulose/thermo-mechanical analysis/finite element/process safety/frictional heat分类
化学化工引用本文复制引用
姜学池,武新光,刘欣,杨向锦,陈元元,曹尚,周昊,侯静..硝化棉冲孔和切割工艺的热机械行为有限元分析[J].南京理工大学学报（自然科学版）,2026,50(1):98-104,7.
