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Effects of ply thickness deviation and ply angle misalignment on the surface accuracy of CFRP laminates
L. Cheng; P. Gong; Q. Wang; Z. M; Z. Y and L. Z
2021
发表期刊Composite Structures
ISSN2638223
卷号270
摘要This study examines two factors that affect the surface accuracy of symmetric carbon-fibre-reinforced plastic (CFRP) laminates: ply angle misalignment and ply thickness deviation. First, based on classic laminate theory, theoretical expressions for the effects of these factors are deduced. Then, COMSOL (FEM software) is used to analyse the relationship between these factors and the surface accuracy, and Zernike polynomials are used to fit the surface deformation of the CFRP laminates. It proves that ply angle misalignment and ply thickness deviation can cause astigmatic and power aberrations. Based on the integral constraint method in the form of Lagrangian multipliers, the rigid body displacement problem of the free thermal expansion simulation of CFRP laminates has been solved. Finally, three groups of experimental tests show that ply thickness deviation does occur. A ZYGO interferometer is used to observe the surface accuracy of the laminates, and it shows that astigmatism is the dominant aberration. 2021
DOI10.1016/j.compstruct.2021.114073
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收录类别SCI ; EI
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/65198
专题中国科学院长春光学精密机械与物理研究所
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L. Cheng,P. Gong,Q. Wang,et al. Effects of ply thickness deviation and ply angle misalignment on the surface accuracy of CFRP laminates[J]. Composite Structures,2021,270.
APA L. Cheng,P. Gong,Q. Wang,Z. M,&Z. Y and L. Z.(2021).Effects of ply thickness deviation and ply angle misalignment on the surface accuracy of CFRP laminates.Composite Structures,270.
MLA L. Cheng,et al."Effects of ply thickness deviation and ply angle misalignment on the surface accuracy of CFRP laminates".Composite Structures 270(2021).
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