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复合材料胶接结构有限元分析方法研究进展

王孝慧, 姚卫星   

  1. 南京航空航天大学飞行器先进设计技术国防重点学科实验室, 南京 210016
  • 收稿日期:2011-07-04 修回日期:2011-10-08 出版日期:2012-09-25 发布日期:2012-09-29
  • 通讯作者: 姚卫星 E-mail:wxyao@nuaa.edu.cn
  • 作者简介:姚卫星,男,教授,博士生导师.主要研究方向为飞行器结构设计、飞行器先进结构设计理论.共发表学术论文190多篇,专著2部,教材2部.获省部级教学成果奖6项.现为南京航空航天大学航空宇航学院飞行器设计系主任.
  • 基金资助:

    长江学者和创新团队发展计划(IRT0968)资助

PROGRESS IN RESEARCH ON FEA MODELS OF ADHESIVELY BONDED COMPOSITE JOINTS

WANG Xiaohui, YAO Weixing   

  1. Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicles, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2011-07-04 Revised:2011-10-08 Online:2012-09-25 Published:2012-09-29
  • Supported by:

    The project was supported by the program for Changjiang Scholars and Innovative Research Team in University (Irt0968).

摘要:

胶接结构的强度分析方法可以分为解析法和数值法两类,数值法主要是有限元方法.本文综述了复合材料胶接结构的有限元分析方法,按照胶接结构有限元模型建立的物理机理,将胶接结构力学分析模型分为基于有限元应力分析模型、基于断裂力学模型和基于损伤力学模型3类.详细介绍了这3类模型中的主要有限元建模分析方法:三维应力分析方法、虚拟裂纹闭合技术方法和内聚力模型方法,介绍了每种方法的基本思想、适用范围、优缺点、改进和扩展、有限元建模的实施步骤,以及有限元分析中应用该方法所取得的成果.第五部分从适用范围、应力奇异和破坏判据3个方面对这几种分析模型进行了对比分析.最后,对该领域发展趋势进行了展望.

关键词:

复合材料|有限元|胶接|强度分析|建模方法

Abstract:

The strength analysis methods of adhesive bonded structure can be classified into two types,i.e.,analytical method and numerical method,and the numerical method is mainly finite element method.In this paper,the finite element analysis methods for composite adhesive bonding structures are summarized,and based on the physical mechanism of the methods,the main FEM analysis methods of adhesively bonded composite joints are classified into three types,i.e.,stress-based model,fracture mechanics-based model and damage mechanics-based model.3D stress-based model,VCCT model and CZM model have been summarized in details,including their basic concepts,range of applications,advantages and disadvantages,improvements and extension as well as the implementation procedures.The recent progresses and necessary comments have also been reviewed in the present paper.These methods have been compared and analyzed from three aspects in the fifth part,such as the scope,singular stress and failure criterion,and further development trends in this area are also prospected.

Key words:

composite|FEM|adhesive bonding|strength analysis|modeling method