Effects of ply thickness deviation and ply angle misalignment on the surface accuracy of CFRP laminates

doi:10.1016/j.compstruct.2021.114073

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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
ISSN	2638223
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
DOI	10.1016/j.compstruct.2021.114073
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收录类别	SCI ; EI
引用统计
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
推荐引用方式 GB/T 7714	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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