摘要
研究了高密度硅橡胶作为核电厂核岛建筑结构封堵材料的力学特性及其对工艺管道的影响。对高密度硅橡胶开展了力学性能实验,采用Mooney-Rivlin模型描述材料的力学本构关系。结合核电厂工程实际,运用有限元方法分析了该材料对工艺管道的约束刚度。结果表明,随着温度的升高,高密度硅橡胶抵抗变形的能力逐渐提高;封堵材料的轴向厚度、径向厚度以及管道与孔洞的圆心距对管道的约束刚度都有显著影响。本实验研究结果对高密度硅橡胶的工程应用和管道设计具有借鉴意义。
The study investigated the mechanical properties of high-density silicone rubber as sealing material for buildings in nuclear power plants and its influence on the pipelines.The mechanical properties of high-density silicone rubber have been tested,and the Mooney-Rivlin model is employed to describe the mechanical constitutive relationship of the materials.Based on the engineering practice of nuclear power plants,the finite element method is employed to analyze the constrainted stiffness of the silicone rubber on pipelines.The results indicate that the deformation resistance of high-density silicone rubber gradually increases as temperature increases.The axial thickness and radial thickness of high-density silicone rubber,and the center distance between the pipeline and the hole have a significant impact on the constrained stiffness of the pipeline.The research offers a reference for the engineering application of high-density silicone rubber and the improvement of piping design.
作者
王斌斌
王志远
赵起超
门书卉
WANG Binbin;WANG Zhiyuan;ZHAO Qichao;MEN Shuhui(China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China;Yantai Jinrun Nuclear Materials Co.,Ltd.,Yantai 264000,China)
出处
《有机硅材料》
2025年第2期1-6,37,共7页
Silicone Material
基金
中国核电工程有限公司科研项目(KY21097)。
关键词
高密度
硅橡胶
本构关系
约束刚度
核电厂
high density
silicone rubber
constitutive relationship
constrained stiffness
nuclear power plant
