复合材料科学与工程Issue(12)：20-25,6.DOI:10.19936/j.cnki.2096-8000.20251228.003
SiC/SiC复合包壳管的室温轴向拉伸和内压爆破性能
Room temperature uniaxial tensile and internal pressure burst testing of SiC/SiC composite claddings
摘要
Abstract
SiC/SiC composites represent one of the primary long-term objectives for accident-tolerant fuel cladding in pressurized water reactor(PWR)nuclear power plants.To establish relevant testing capabilities and ac-quire phased mechanical property data,shortened specimens extracted from meter-length tubular materials were em-ployed to conduct axial tensile and internal pressure burst tests on SiC/SiC composite cladding tubes at ambient tem-perature.Experimental results demonstrate that the SiC/SiC composite cladding tubes exhibit similar"quasi-plastic"stress-strain behavior under both stress states,characterized by progressive failure mechanisms.The tubes fabricated with 45° fiber orientation relative to the tube axis demonstrate comparable axial and hoop strengths,a-chieving the objective of balanced mechanical properties in both directions.Mechanical property testing of parallel samples from different production batches shows acceptably small variations,indicating that the current manufactur-ing process can reliably produce meter-length tubes with satisfactory uniformity in axial mechanical properties.关键词
SiC/SiC复合材料/包壳管/力学性能评价/轴向拉伸/内压爆破试验Key words
SiC/SiC composites/cladding/mechanical property evaluation/axial tensile test/internal pressure burst test分类
通用工业技术引用本文复制引用
王卫军,张华锋,冯宗悦,徐博,陈冉,孔淑妍,郑罡..SiC/SiC复合包壳管的室温轴向拉伸和内压爆破性能[J].复合材料科学与工程,2025,(12):20-25,6.基金项目
国家重点研发计划(2022YFB3706003) （2022YFB3706003）
