中南大学学报（自然科学版）2018，Vol.49Issue(1)：47-54,8.DOI:10.11817/j.issn.1672-7207.2018.01.007
基于热力学试验和数值方法的非线性衬里材料性质
Study on physical properties of nonlinear lining material based on thermal-mechanical tests and numerical simulation
摘要
Abstract
The thermal-mechanical properties of lining material were studied by physical tests and numerical simulation. Indoor heating-insulating test was designed to measure the thermal properties of lining material under the condition of high temperature, and the mechanical properties and failure mode of the liner with the confining pressure changing were studied by mechanical test. The thermal-mechanical numerical simulation based on the physics test result was conducted and compared with the standard regulation in ASME. The results show that the indoor heating-insulating test and mechanical test can be taken as ways to get the heat-transfer characteristics and mechanical properties of the lining material and provides data support to the simulation of real condition on numerical method. The compressive strength of lining material is improved significantly when the metal content increases and the compressive strength increases when the confining pressure increases with the metal content fixed. As the confining pressure increases, the elasticity modulus and the curve slope of constitutive increases, and the maximum stress increases correspondingly. When the stress reaches the peak, the axial stress gradually falls and radial stress gradually stabilizes. The inner layer is under pressure and the outer is under tension and it has a stress asymmetry. Combining physical testing with numerical simulation is an effective method for the study of lining material properties.关键词
衬里材料/升保温试验/力学试验/导热系数/数值试验Key words
lining material/heating-insulating test/mechanical test/thermal conductivity/numerical simulation分类
通用工业技术引用本文复制引用
刘铭刚,闫怡飞,闫涛,宋胜利,周晓奇,杨秀娟,闫相祯..基于热力学试验和数值方法的非线性衬里材料性质[J].中南大学学报（自然科学版）,2018,49(1):47-54,8.基金项目
中国博士后科学基金资助项目(2017M612375) （2017M612375）
国家自然科学基金资助项目(51374228) （51374228）
国家科技重大专项(2016ZX05017-003) (Project(2017M612375) supported by Postdoctoral Science Foundation of China （2016ZX05017-003）
Project(51374228) supported by the National Natural Science Foundation of China （51374228）
Project(2016ZX05017-003) supported by the National Key Technology) （2016ZX05017-003）
