轴压层合结构脱层屈曲及其扩展研究进展
doi: 10.6052/1000-0992-2000-1-J1998-006 cstr: 32046.14.1000-0992-2000-1-J1998-006
ADVANCES IN THE STUDIES ON DELAMINATIONS BUCKLING AND GROWTH OF AXIAL-COMPRESSION LAMINATE
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摘要: 脱层及其进一步扩展可以降低层合结构的强度.首先简单介绍了脱层的一般概念、起因及其分类.从一维脱层、二维脱层和柱壳脱层三个方面介绍了脱层问题的研究概况.指出拉弯耦合和横向剪切效应对脱层结构的屈曲载荷和后屈曲特性影响很大;对于不同的材料特性和尺寸比率,脱层结构的屈曲模态和最终承载能力也不同.最后提出了需进一步深入研究的问题Abstract: Deiaminations and their further growth can reduce strength of laminates. This paper introduces the general concepts and classification of delaminations briefly. The investigative survey of delaminations is introduced through one-dimensional delaminations, two-delamina tions and delaminations in cylindrical shells. It is pointed out that the bending-stretching coupling and transverse shear have great influence on buckling load and characteristics of post-buckling of the delaminational structure. The buckling...
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Key words:
- delamination /
- laminated structure /
- buckling /
- post-buckling /
- delamination growth /
- energy release rate /
- stability
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