复合材料壁板后屈曲设计与分析技术研究进展  

Research progress in post-buckling design and analysis techniques for composite stiffened panel

作　　者：陈向明[1] 李新祥[1] 柴亚南[1] 陈普会[2] 孙侠生 CHEN Xiangming;LI Xinxiang;CHAI Yanan;CHEN Puhui;SUN Xiasheng(National Key Laboratory of Strength and Structural Integrity,Aircraft Strength Research Institute of China,Xi'an 710065,China;College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]中国飞机强度研究所强度与结构完整性全国重点实验室,西安710065 [2]南京航空航天大学航空学院,南京210016 [3]上海交通大学航空航天学院,上海200240

出　　处：《复合材料学报》2024年第9期4673-4700,I0008,共29页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(12272358);民机科研(MJ-2015-F-038)。

摘　　要：复合材料的大规模应用是航空飞行器机体加筋壁板结构减重的主要手段,但因过于保守的设计准则使得结构减重效果并不理想。薄壁加筋壁板结构通常具有很长的后屈曲承载历程,但因缺乏后屈曲设计与评估的有效分析方法,目前飞机复合材料加筋壁板几乎都不允许蒙皮在限制载荷以下屈曲,无法充分发挥复合材料的减重特性。本文回顾了复合材料加筋壁板稳定性设计的发展历程,阐述了开展后屈曲设计分析的必要性;围绕工程分析技术与数值分析技术两个方面,详细综述了壁板结构屈曲与后屈曲性能分析与设计方法的研究进展;探讨了影响复合材料壁板屈曲与后屈曲性能的主要因素,并论述了屈曲疲劳、损伤/缺陷、湿热环境等对结构性能的影响;最后总结了复合材料加筋壁板后屈曲设计与分析技术总体现状,展望了未来技术发展趋势。The large-scale application of composite materials is the main means of weight reduction for aircraft stiffened panel structures,but due to overly conservative design criteria,the weight reduction effect of the structure is not ideal.Thin-walled stiffened panel structures usually have a long post-buckling bearing history,but due to the lack of effective analysis methods for post-buckling design and evaluation,currently,aircraft composite stiffened panels almost do not allow the skin to buckle below the limited load,which cannot fully utilize the weight reduction characteristics of composite materials.This article reviewed the development process of stability design for composite stiffened panels and elaborates on the necessity of conducting post-buckling design analysis,and provided a detailed review of the research progress on the buckling and post-buckling performance analysis and design methods of stiffened panel structures,focusing on two aspects:engineering analysis technology and numerical analysis technology;Explored the main factors affecting the buckling and post-buckling performance of composite stiffened panels,and discussed the effects of buckling fatigue,damage/defects,and humid thermal environment on structural performance;Finally,the overall status of post-buckling design and analysis technology for composite stiffened panels was summarized,and future technological development trends were discussed.

关 键 词：复合材料 加筋壁板 屈曲 后屈曲 工程分析 数值分析 

分 类 号：V22[航空宇航科学与技术—飞行器设计] TB332[一般工业技术—材料科学与工程]