哈尔滨工程大学学报2024，Vol.45Issue(6)：1144-1151,8.DOI:10.11990/jheu.202206051
石墨填料垫片变形特性研究
Study on the deformation characteristics of a graphite gasket
摘要
Abstract
To solve the problem of corner tearing of graphite packing gaskets in use,a finite element model of a gasket system was established based on the elastoplasticity of the structure and materials of the existing sealing test bed to simulate the compression and springback processes of a gasket.The accuracy of the model was verified through compression and springback experiments.The stress concentration phenomenon of the edge angle of the graphite packing gaskets was verified by analyzing the change in the compression rebound curve during the loading and unloading of graphite packing gaskets in different sizes,compression ratios,and side clearances.By analyzing the stress distribution of the upper-and side-sealing surfaces,it is revealed that the edge tearing of graphite gaskets is caused by excessive stress peaks on both sides of the upper surface,and the edge-wrapping structure can signifi-cantly improve the edge tearing problem of gaskets after compression.关键词
柔性石墨垫片/包边垫片/有限元分析/变形特性/接触压力/压缩回弹/应力分布/边角撕裂Key words
flexible graphite gasket/edge-enclosed gasket/finite element analysis/deformation characteristics/contact pressure/compression rebound/stress distribution/edge tearing分类
通用工业技术引用本文复制引用
姚建均,孙双海,王枭,李英朝,萧冠华..石墨填料垫片变形特性研究[J].哈尔滨工程大学学报,2024,45(6):1144-1151,8.基金项目
黑龙江省自然科学基金项目(E2018019) （E2018019）
中央高校基本科研业务费(3072020CF0704). （3072020CF0704）
