摘要
纤维缠绕复合材料压力容器由纤维、基体和界面组成,其宏观性能会随着组成材料微观性能的变化而变化,为了更加科学准确地对复合材料压力容器性能进行预测,有必要建立多尺度性能预测与分析方法,将ANSYS微观分析与ABAQUS宏观分析相结合,以此指导设计,提高其性能。此外,通过微观脱黏试验、树脂和碳纤维的拉伸试验获得复合材料微观力学参数,通过材料体系XSYT55G成形的缠绕层压板样品进行拉伸和剪切强度试验获得复合材料的宏观力学参数。采用提取的代表体积元素(RVE)进行微观失效分析,并引入渐进均匀化理论,实现微观到宏观的分析过度,同时将该分析方法应用到纤维缠绕复合材料的压力容器算例分析中。分析结果表明:RVE模型进行拉伸失效分析,Weibull模量(m)值越小,失效单元数越多,模型承载力越低;对不同纤维强度Weibull分布进行分析,m值越大,宏观模型模量峰值越晚出现,变化越剧烈;纤维强度离散性m值对爆破压力和失效过程有重要影响,随着m值增大,压力容器失效越晚,载荷变化越剧烈,爆破压力也随之增大。
The filament wound composite pressure vessel is composed of fiber,matrix and interface.Its macroscopic properties can change with the change of the microscopic properties of the constituent materials.In order to predict the performance of composite pressure vessels more scientifically and accurately,it is necessary to establish a multi-scale performance prediction and analysis method.ANSYS mesoscopic analysis and ABAQUS macroscopic analysis were combined to guide the design and improve its performance.In addition,the micro-mechanical parameters of the composites were obtained by micro-debonding test and tensile test of resin and carbon fiber.The macroscopic mechanical parameters of the composites were obtained by tensile and shear strength tests on the winding laminate samples formed by the material system XSYT55G.The extracted representative volume element( RVE) was used for meso-scale failure analysis,and the progressive homogenization theory was introduced to realize the excessive analysis from meso-scale to macro-scale.At the same time,the analysis method was applied to the example analysis of filament wound composite pressure vessel.The analysis results show that in the tensile failure analysis of the RVE model,the smaller the Weibull modulus(m) value,the more the number of failure units,and the lower the bearing capacity of the model.The tensile failure analysis of the RVE model shows that the smaller the m value,the more the number of failure units,and the lower the bearing capacity of the model.The Weibull distribution of different fiber strength was analyzed.The larger the m value,the later the modulus peak of the macroscopic model appears,and the more intense the change.The discreteness m value of fiber strength has an important influence on the burst pressure and failure process.As the m value increases,the pressure vessel fails later,the load changes more violently,and the burst pressure also increases.
作者
刘长喜
姜旭
王佳杰
王云龙
王晓宏
毕凤阳
周威
Liu Changxi;Jiang Xu;Wang Jiajie;Wang Yunlong;Wang Xiaohong;Bi Fengyang;Zhou Wei(School of Mechanical and Electrical Engineering,Heilongjiang Institute of Technology,Harbin 150050,China;School of Materials Science and Engineering,Heilongjiang Institute of Technology,Harbin 150050,China;School of Automotive and Transportation Engineering,Heilongjiang Institute of Technology,Harbin 150050,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2023年第11期115-122,共8页
Engineering Plastics Application
基金
国防科技重点实验室开放基金项目(JCKYS2023603C022)
先进焊接与连接国家重点实验室开放课题研究基金项目(AWJ-23M23)
黑龙江省重点研发计划指导类项目(GZ20210098)
黑龙江省教育科学规划重点课题项目(GJB1423014)
黑龙江省自然科学基金项目(LH2023E114)。
关键词
多尺度分析
性能预测
复合材料压力容器
渐进失效
爆破压力
数值分析
multiscale analysis
performance prediction
composite pressure vessel
progressive failure
bursting pressure
simulation analysis
