爆炸与冲击2017，Vol.37Issue(6)：1107-1112,6.DOI:10.11883/1001-1455(2017)06-1107-06
玻璃纤维增强型复合材料圆筒高温高压动态冲击断口形貌分析
Fracture analysis of glass fiber reinforced composite material under high temperature and pressure
王加刚 1余永刚 2周良梁 1曹韩学 1刘溪3
作者信息
- 1. 南京理工大学能源与动力工程学院,江苏南京210094
- 2. 重庆望江工业有限公司,重庆400071
- 3. 重庆大学材料科学与工程学院,重庆400044
- 折叠
摘要
Abstract
In this study we carried out an static overall tensile experiment at room temperature and a transient blast experiment under ultra high pressure to investigate the structural strength of glass fiber reinforced (GFR) composite cartridge of CTA gun with transient impulse under high temperature and pressure.The fracture surfaces of the specimens were cut from the tensile/transient ultra high pressure failure samples,and the fracture morphology was observed under the scanning electron micro scope.The results show that the main failure modes of GFR composites are matrix failure and fiber pulling-out when the uniaxial overall tensile fracture occurs at room temperature with the intersection between the GFR composites section and the axis close to 45°;the main failure mode of the specimen under transient ultra high pressure is the brittle fracture of the fiber and,due to the a portion of substrate's carbonization resulting from the high temperature heat produced by the ignited gun powder,the fiber matrix interface's binding force is reduced and a few fibers either melt or soften,becoming attached to the fractured surface,thereby attenuating part of the softened fibers due to the transient super high pressure.关键词
玻璃纤维/复合材料/非金属药筒/瞬态冲击/断口形貌Key words
glass fiber/composite material/nonmetallic cartridge/transient blast experiment/fracture morphology分类
数理科学引用本文复制引用
王加刚,余永刚,周良梁,曹韩学,刘溪..玻璃纤维增强型复合材料圆筒高温高压动态冲击断口形貌分析[J].爆炸与冲击,2017,37(6):1107-1112,6.
