纤维金属层极疲劳寿命预测的研究进展  

DEVELOPMENT OF METHODOLOGY FOR PREDICTING FATIGUE LIFE OF FIBER REINFORCED METAL LAMINATES

作　　者：吴学仁[1] 郭亚军[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《力学进展》1999年第3期304-316,共13页Advances in Mechanics

基　　金：航空科学基金!95G21010

摘　　要：简要介绍了纤维金属展板的起源、性能特点、应用现状与前景，对其疲劳损伤机理作了简要分析．对影响层板疲劳寿命的两个关键因素──桥接应力与分层扩展从理论分析与测量技术两方面结合自己的研究成果作了系统评析．详细分析了层板在等幅疲劳下寿命预测的研究现状．介绍了层板在变幅载荷下的疲劳行为（包括裂纹扩展与分层扩展）与寿命预测的研究进展，指出了目前预测模型的有待改进的建议．The paper presents a review of the characteristics of a new group of aircraft materials,the fiber reinforced metal laminates (FRMLs), the mechanism of fatigue damage, and the industrial application. Several important issues, including the bridging stress, the delamination growth and the prediction of the fatigue crack growth rates and the fatigue life, were addressed and summarized. Some suggestions on the prediction of fatigue life were proposed.

关 键 词：纤维金属层板 损伤 裂纹扩展 疲劳寿命预测 

分 类 号：O346.2[理学—固体力学]