复合材料B基准值计算方法研究进展

汪梓迅; 矫维成; 赫晓东

doi:10.13801/j.cnki.fhclxb.20210223.004

复合材料B基准值计算方法研究进展

doi: 10.13801/j.cnki.fhclxb.20210223.004

汪梓迅^1,,
矫维成^{1, 2, ,},
赫晓东^{1, 2,}

1.
哈尔滨工业大学　特种环境复合材料技术国家级重点实验室，哈尔滨 150001
2.
深圳烯创先进材料研究院有限公司，深圳 518000

基金项目: 国家自然科学基金(U1837203)；国家重点研发计划课题(2018YFA0702802)；深圳市科技计划(KQTD2016112814303055)

详细信息

通讯作者:
矫维成，博士，教授，博士生导师，研究方向为树脂基复合材料　 E-mail：xiaojiao458@163.com

中图分类号: TB332
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出版历程
- 收稿日期: 2020-11-16
- 录用日期: 2021-02-12
- 网络出版日期: 2021-02-23
- 刊出日期: 2021-06-23

Research progress in calculation method of composite material’s B basis

WANG Zixun^1
,,
JIAO Weicheng^{1, 2
, ,},
HE Xiaodong^{1, 2
,}

1.
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150001, China
2.
Shenzhen STRONG Advanced Materials Research Institute CO. LTD., Shenzhen 518000, China

摘要

摘要: 在复合材料的结构设计中，复合材料的许用值是关键参数之一。通常采用B基准值这一统计量作为复合材料的许用值，B基准值是具有95%置信度的90%置信下限。准确计算复合材料的B基准值是复合材料安全、可靠应用的保障。本文归纳总结了复合材料B基准值计算方法的研究进展，详细分析了单点法、多环境样本合并法的计算原理、计算过程、适用条件等。结合工程实例数据，分析了不同方法对B基准值计算结果的影响。最后，对复合材料B基准值计算方法的发展趋势及预期研究方向进行了展望。
- 复合材料 /
- B基准值 /
- 单点法 /
- 多环境样本合并法
Abstract: In the structural design of composite materials, the allowable value is one of the key parameters. The statistic of B basis is usually used as the allowable value of composite materials, and the B basis is the lower limit of 90% confidence with 95% confidence. Accurate calculation of the B basis of composite materials is the guarantee for the safe and reliable application of composite materials. This article summarizes the research progress of the calculation method of the composite material’s B basis, and analyzes in detail the calculation principle, calculation process and applicable conditions of the single-point method and the pooling method. And combined with the project data, the influence of different methods on the calculation results of the B basis is analyzed. Finally, the development trend and expected research direction of the calculation method of composite material B basis are prospected.
- composite materials /
- B basis /
- single-point method /
- pooling method

HTML全文

图 1 复合材料B基准值计算方法发展历程^[3-5]

Figure 1. History of B basis^[3-5]

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图 2 MIL-HDBK-17-1F单点法计算流程^[10-15]

Figure 2. MIL-HDBK-17-1F single point method calculation process ^[10-15]

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图 3 CMH-17G单点法计算流程^[10-15]

Figure 3. CMH-17G single point method calculation process^[10-15]

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图 4 CMH-17G多点法计算流程^[10-15]

Figure 4. CMH-17G Pooling Method calculation process^[10-15]

C_v—Coefficient of variation

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图 5 威布尔分布与正态分布的L比较

Figure 5. L comparison of Weibull distribution and Normal distribution

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图 6 离散系数变化前后正态分布的L比较

Figure 6. Comparison of L before and after variation of dispersion coefficient

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图 7 离散系数变化前后正态分布与威布尔分布L之差

Figure 7. L graph of the normal distribution minus the Weibull distribution before and after the dispersion coefficient changes

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图 8 单点法与多环境样本法L比较

Figure 8. L comparison between single point method and pooling method

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图 9 合并离散系数与合并标准差L比较

Figure 9. L comparison of combined dispersion coefficient and combined standard deviation

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