摘要
研究了具有基板嵌入分层损伤和筋板脱粘损伤的复合材料加筋层合板的振动特性。根据层合板和层合梁的一阶理论,结合Adams应变能法的模态阻尼模型,建立了含损伤复合材料加筋板动力分析的有限元方法,开发了相应的有限元分析软件。通过典型数值算例的计算结果,分别讨论了具有基板分层和筋、板间脱粘的复合材料加筋板损伤尺度和损伤位置对板的传递函数的影响,得到含不同类型和尺度的含损伤复合材料加筋板的振动特征。
The dynamic characteristics of the stiffened composite plate with embedded delamination and/or interface debonding between the stiffener and laminates were studied via the investigation of frequency response function （FRFs）. According to the Mindlin shear deformation theory of the composite plate and beam, and the modal damping model on the basis of the Adams＇strain energy method （MSE）, the finite element method of dynamic analysis for the damaged composite stiffened plates was developed. The influences of damage size and location on the frequency response function for the stiffened composite plate with embedded delamination and/or the interface debonding were studied. The results show that this method can be used for damage identification of composite stiffened plates.
出处
《重庆大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第3期280-284,共5页
Journal of Chongqing University
基金
国家自然科学基金资助项目(1027202510302004)
关键词
复合材料加筋板
损伤
动力特性
传递函数
composite stiffened plates
delamination
frequency response function
damaged
the dynamic characteristic
