摘要
通过对LY12CZ铝合金疲劳试样在3种不同应力水平下的单向拉伸测试,发现材料损伤过程中吸收的能量这一参量随损伤表现较为敏感,为此提出了利用材料损伤前后吸收能量的变化来表征材料所受的损伤。基于此提出了一种基于简单单向拉伸试验的铝合金疲劳损伤评估方法,有望用于飞机铝合金结构件疲劳寿命的评估。
Through single direction tensile testing for LY12CZ aluminum alloy at three different stress levels, the energy degradation was found to be closely related to the material damage. So based on the viewpoint of energy, a new method was proposed to evaluate fatigue damage of aluminum alloy, which is promising for fatigue life prediction of aircraft aluminum alloy structure.
出处
《理化检验（物理分册）》
CAS
2013年第10期647-649,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
基金
国家自然科学基金资助项目(11072124)
关键词
铝合金
疲劳损伤
单向拉伸
能量耗散
aluminum
fatigue damage
single direction tension
energy degradation
