用于飞机结构选材的系列材料性能指标及其应用

doi:10.7527/S1000-6893.2015.0291

材料工程与机械制造

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用于飞机结构选材的系列材料性能指标及其应用

张腾^1,2, 何宇廷¹, 谭申刚³, 王新波³, 张胜¹

1. 空军工程大学航空航天工程学院, 西安 710038;
2. 94484部队, 高密 261500;
3. 中航工业第一飞机设计研究院, 西安 710089

收稿日期:2015-10-12 修回日期:2015-10-23 出版日期:2016-10-15 发布日期:2015-10-30
通讯作者: 何宇廷,Tel.:029-84787082 E-mail:heyut666@126.com E-mail:heyut666@126.com
作者简介:张腾男,博士,工程师。主要研究方向:飞机结构强度与使用寿命。E-mail:zt_gm@126.com;何宇廷男,博士,教授,博士生导师。主要研究方向:飞机结构强度与使用寿命。Tel.:029-84787082 E-mail:heyut666@126.com
基金资助:
国家自然科学基金（51475470，51201182）

Series of material property indices and their application to materials selection for aircraft structure

ZHANG Teng^1,2, HE Yuting¹, TAN Shen'gang³, WANG Xinbo³, ZHANG Sheng¹

1. Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi'an 710038, China;
2. 94484 Troops, Gaomi 261500, China;
3. The First Aircraft Institute, Aviation Industry Corporation of China, Xi'an 710089, China

Received:2015-10-12 Revised:2015-10-23 Online:2016-10-15 Published:2015-10-30
Supported by:
National Natural Science Foundation of China (51475470, 51201182)

摘要/Abstract

摘要：

为提高飞机机体结构选材的合理性，从材料性能指标的角度出发，在材料比强度、比刚度的常用基本指标之外，结合飞机结构设计思想，提出了材料比疲劳强度、比静韧度、比动韧度、疲劳强度比、静韧强比、疲劳韧强比共6个材料性能指标的概念与计算方法。建立了基于系列材料性能指标的飞机结构选材方法，考虑飞机结构的设计准则及结构在实际使用过程中的功能需求，通过条件筛选缩小备选材料范围，依据系列材料性能指标进行材料对比排序，并通过结构验证确定最终选材。以某型飞机机翼大梁的选材过程给出了应用实例。

关键词: 飞机结构, 结构选材, 比疲劳强度, 比静韧度, 比动韧度, 疲劳强度比, 静韧强比, 疲劳韧强比

Abstract:

In order to improve the rationality of materials selection for aircraft structure, considering from the viewpoint of material property indices, concepts and calculation methods of specific fatigue strength, specific static toughness, specific dynamic toughness, fatigue static strength ratio, toughness static strength ratio and toughness fatigue strength ratio are put forward apart from the common parameters of the specific static strength and the specific stiffness. A materials selection method based on the series of material property indices is established. This method firstly narrows the possible materials usable in design by considering the design criteria and actual in-service requirements, then ranks the candidates according to the series of material property indices and chooses the final material through structural validation. Finally, a material selection process for an aircraft wing spar is given as an example.

Key words: aircraft structure, material selection for an structure, specific fatigue strength, specific static toughness, specific dynamic toughness, fatigue static strength ratio, toughness static strength ratio, toughness fatigue strength ratio

中图分类号:

V222
V250.3

张腾, 何宇廷, 谭申刚, 王新波, 张胜. 用于飞机结构选材的系列材料性能指标及其应用[J]. 航空学报, 2016, 37(10): 3170-3177.

ZHANG Teng, HE Yuting, TAN Shen'gang, WANG Xinbo, ZHANG Sheng. Series of material property indices and their application to materials selection for aircraft structure[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(10): 3170-3177.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

用于飞机结构选材的系列材料性能指标及其应用

Series of material property indices and their application to materials selection for aircraft structure

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