复合材料科学与工程DOI:10.19936/j.cnki.2096-8000.20230328.013复合材料带填充钉孔层压板拉伸载荷下损伤特性分析张幻实,张发,高丽敏,贾银磊(中国商飞北京民用飞机技术研究中心民用飞机结构与复合材料北京市重点实验室,北京102211)摘要:复合材料填充钉孔层压板常用于机械连接设计中,考虑了开孔处的螺栓约束和层压板钉孔周边区域挤压变形的旁路失效问题,主要用于飞机复合材料结构的强度许用值设计,在航空航天等领域受到日益广泛的应用。为比较依据不同失效准则开展的复合材料带填充钉孔层压板拉伸损伤扩展失效特性,利用ABAQUS有限元软件,建立了二维和三维有限元模型,建模中考虑了材料非线性行为和失效判断等基本问题,基于Hashin准则和LaRC05准则对相应铺层顺序的含填充钉孔复合材料层压板进行了静态拉伸数值模拟,根据ASTMD6742进行了填充钉孔层压板单轴拉伸试验,将数值模拟结果与试验结果进行对比,数值模拟结果较好地模拟了含填充钉孔复合材料层压板的拉伸渐进失效模式,具有良好的工程应用意义。关键词:复合材料层压板;扩展有限元法;LaRC05准则;Hashin准则;拉伸破坏;损伤特性中图分类号:TB332文献标识码:A文章编号:2096-8000(2023)03-0089-06DamagecharacteristicsanalysisofcompositelaminateswithfillednailholesundertensileloadZHANGHuanshi,ZHANGFa,GAOLimin,JIAYinlei(BeijingKeyLaboratoryofCommercialAircraftStructuresandCompositeMaterials,COMACBeijingAircraftTechnologyResearchInstitute,Beijing102211,China)Abstract:Compositelaminatesfilledwithpinholesareoftenusedinmechanicalconnectiondesign.Consideringtheboltconstraintattheopeningandthebypassfailureofextrusiondeformationintheareaaroundthepinholeofthelaminate,theyaremainlyusedforthedesignofstrengthallowablevaluesofaircraftcompositestructures,andareincreasinglywidelyusedinaerospaceandotherfields.Inordertocomparethetensiledamagepropagationfailurecharacteristicsofcompositelaminateswithfilledpinholesbasedondifferentfailurecriteria,two-dimensionalandthree-dimensionalfiniteelementmodelswereestablishedusingABAQUSfiniteelementsoftware.Thenonlinearbe-haviorofmaterialsandfailurejudgmentwereconsideredinthemodeling.BasedonHashincriterionandLaRC05criterion,thestatictensilenumericalsi...