邱贵顺,赵晖,肖雁,吕乐丰.基于小样本物理测试的T800H碳纤维复合材料许用值虚拟大样本技术研究[J].民用飞机设计与研 究,2020(1):113-120QIU Guishun,SUN Yifeng,ZHAO Hui,XIAO Yan,LV Lefeng.[J].Civil Aircraft Design and Research,2020,(1):113-120.
基于小样本物理测试的T800H碳纤维复合材料许用值虚拟大样本技术研究
  
DOI:10.19416/j.cnki.1674-9804.2020.01.019
中文关键词:虚拟测试  高性能复合材料  许用值
英文关键词:virtual testing  advanced composite materials  allowable value
基金项目:
作者单位
邱贵顺,赵晖,肖雁 上海量维信息科技有限公司上海 201210 
吕乐丰 中航工业直升机设计研究所天津 300000 
中文摘要:获得材料许用值的传统方法是对各种形式的材料和试样进行物理试验,并根据“积木式”方法逐级验证单元、子部件和部件。然而,按照“积木式”方法进行测试的成本很高。因此,需要一种新的方法,在较短的时间内完成新材料体系表征鉴定,并推进其在工程中的应用。根据FAA/ASTM建议,非均质单胞多尺度建模/虚拟测试技术,可以成为设计应用过程早期的材料和结构的验证策略。以材料的细观力学/宏观力学为基础,充分考虑制造过程,测试数据和服役环境影响,结合渐进失效分析来预测结构/部件安全性,建立了多尺度虚拟测试工程应用流程。本文采用美国AlphaSTAR公司研发的成熟商业软件平台GENOA,使用单向带测试的统计数据来逆推纤维和基体材料性能以及制造变量的不确定性。 这些不确定性随后被用于生成层合板结构的随机虚拟测试试样,计算许用值。这种仿真方法在T800H项目中获得成功应用,大量减少了物理试验。
英文摘要:The traditional method for engineers to obtain material allowable values is to test various forms of materials and specimens and to verify elements, subcomponents, and components step by step according to the “building block” approach. However, the cost of testing in accordance with the “building block” method is high. Therefore, a new method is needed to develop, identify advanced material technologies in such a short time and promote its application in engineering. According to FAA/ASTM recommendations, multiscale modeling/virtual testing can be a validation strategy early in the design application process. Based on material meso-mechanics/macro mechanics, manufacturing processes, test data and service environment impact and combined with progressive failure analysis to predict structure/component safety, Application process of multi-scale virtual testing has been set up. This paper applies the mature commercial software GENOA developed by AlphaSTAR in the United States, which uses unidirectional tape test statistics to reverse the performance of fiber and matrix materials and the uncertainty of manufacturing variables. Later on, the uncertainties are used to generate random virtual test specimens of the laminate structure and calculate the allowable values. This simulation method has been successfully applied in the T800H project, which greatly reduced the physical test.
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