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飞机结构典型环境腐蚀当量关系研究
引用本文:陈群志,李喜明,周希沅,王英利,吴臻,刘文珽,徐晓飞.飞机结构典型环境腐蚀当量关系研究[J].航空学报,1998,19(4):414-418.
作者姓名:陈群志  李喜明  周希沅  王英利  吴臻  刘文珽  徐晓飞
作者单位:1. 飞机强度研究所,西安,710065
2. 北京航空航天大学固体力学研究所,北京,100083
3. 南昌飞机制造公司,南昌,330024
摘    要: 提出了一种用DFR值描述飞机结构的疲劳性能随腐蚀时间变化的关系式。阐述了腐蚀损伤相同则疲劳强度相等的观点,明确提出了以疲劳强度为准则的腐蚀当量原理,并根据相当数量的大气暴露和加速腐蚀试验后的疲劳数据,确定了铝合金试件4种典型环境地面停放大气腐蚀与试验室加速模拟环境暴露的腐蚀当量关系。

关 键 词:飞机结构  腐蚀  疲劳性能  典型服役环境  加速模拟环境  腐蚀当量关系  
收稿时间:1998-04-01;

INVESTIGATION OF CORROSION EQUIVALENT RELATIONSHIPS BETWEEN THE ACCELERATED ENVIRONMENT AND THE TYPICAL SERVICE ENVIRONMENTS OF AIRCRAFT STRUCTURES
Chen Qunzhi,Li Ximing,Zhou Xiyuan,Wang Yingli,Wu Zhen,Liu Wenting,Xu Xiaofei.INVESTIGATION OF CORROSION EQUIVALENT RELATIONSHIPS BETWEEN THE ACCELERATED ENVIRONMENT AND THE TYPICAL SERVICE ENVIRONMENTS OF AIRCRAFT STRUCTURES[J].Acta Aeronautica et Astronautica Sinica,1998,19(4):414-418.
Authors:Chen Qunzhi  Li Ximing  Zhou Xiyuan  Wang Yingli  Wu Zhen  Liu Wenting  Xu Xiaofei
Affiliation:Aircraft Strength Research Institute, Xi′an, 710065
Abstract:A formula in terms of DFR value to describe the relationship between the fatigue properties of aircraft structure and the corrosion time was presented. The viewpoint of the same corrosion damage corresponding with the same fatigue property was clarified. A corrosion equivalent law in terms of the fatigue strength normalization was presented clearly. And the corrosion equivalent relationships of the aluminum alloy specimens exposed to the four typical service environments during grounding versus the accelerated simulation environment in laboratory were established.
Keywords:aircraft structures  corrosion  fatigue properties  typical service environments  accelerated simulation environment  corrosion equivalent relationships  
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