中国塑料2025，Vol.39Issue(2)：26-31,6.DOI:10.19491/j.issn.1001-9278.2025.02.006
不同环境温度下UPVC管材的力学性能退化研究
Study on degradation of mechanical performance of unplasticized poly(vinyl chloride)pipes at different ambient temperature
张辉 1唐站站 1鲍海霞 2程鑫远 2陈斌3
作者信息
- 1. 扬州大学建筑科学与工程学院,江苏 扬州 225127
- 2. 杭州大江东城市设施管养有限公司,杭州 311228
- 3. 浙江省长三角城市基础设施科学研究院,杭州 310005||浙大城市学院,杭州 310015
- 折叠
摘要
Abstract
The mechanical properties of unplasticized poly(vinyl chloride)(UPVC)pipe under high and low temperature environment were experimentally studied,and the constitutive models of UPVC pipe under different temperature were established.The relation between mechanical parameter and ambient temperature was proposed.A stress-strain curve model was established considering the influence of ambient temperature,and the proposed constitutive model was veri-fied.The results indicated that the ambient temperature of UPVC pipe material has a great influence on the mechanical properties.Compared with the properties at normal temperature,the brittleness and yield strength of the material in-creased at low temperature,while the ductility and fracture strain decreased.At high temperature,the yield strength and fracture strain of the material decreased,while the ductility increased.Numerical analysis was carried out by using the programmed subroutine in terms of the ambient temperature variables.The numerical analysis results were in good agree-ment with the test ones.关键词
未增塑聚氯乙烯管材/环境温度/高低温/本构关系/力学性能Key words
unplasticized poly(vinyl chloride)pipe/ambient temperature/high and low temperature/constitutive relation/mechanical property分类
化学工程引用本文复制引用
张辉,唐站站,鲍海霞,程鑫远,陈斌..不同环境温度下UPVC管材的力学性能退化研究[J].中国塑料,2025,39(2):26-31,6.
