Finite element analysis on the buckling property of variable angle tow laminates

Junbo Yang; Bifeng Song; Xiaoping Zhong

Finite element analysis on the buckling property of variable angle tow laminates

Junbo Yang, Bifeng Song, Xiaoping Zhong

School of Aeronautics

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

As a new kind of variable angle tow (VAT) placement technology, continuous tow shearing (CTS) could significantly overcome process-induced defects in the traditional automated fiber placement (AFP). Taking the VAT laminates made by CTS and AFP respectively as research objects, the finite element analysis of their buckling property were carried out. Under the axial end shortening, based on the stack sequence[0±＜0|75＞]_4s, the stress resultant distribution of CTS laminate and AFP laminate were compared. After that, the effect of minimum turning radius on these two placement technologies was demonstrated. The result shows that CTS laminate performs better than AFP laminate on buckling for its variable thickness character, and AFP's usage is restricted when the laminate dimension is small for the constraint of minimum turning radius, while CTS is suitable

Original language	English
Pages (from-to)	991-997
Number of pages	7
Journal	Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
Volume	31
Issue number	4
State	Published - 1 Aug 2014

Keywords

Automated fiber placement
Continuous tow shearing
For all kinds of dimensions.
laminate
Minimum turning radius
Variable angle tow

Cite this

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title = "Finite element analysis on the buckling property of variable angle tow laminates",

abstract = "As a new kind of variable angle tow (VAT) placement technology, continuous tow shearing (CTS) could significantly overcome process-induced defects in the traditional automated fiber placement (AFP). Taking the VAT laminates made by CTS and AFP respectively as research objects, the finite element analysis of their buckling property were carried out. Under the axial end shortening, based on the stack sequence[0±＜0|75＞]4s, the stress resultant distribution of CTS laminate and AFP laminate were compared. After that, the effect of minimum turning radius on these two placement technologies was demonstrated. The result shows that CTS laminate performs better than AFP laminate on buckling for its variable thickness character, and AFP's usage is restricted when the laminate dimension is small for the constraint of minimum turning radius, while CTS is suitable",

keywords = "Automated fiber placement, Continuous tow shearing, For all kinds of dimensions., laminate, Minimum turning radius, Variable angle tow",

author = "Junbo Yang and Bifeng Song and Xiaoping Zhong",

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journal = "Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica",

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publisher = "Beijing University of Aeronautics and Astronautics (BUAA)",

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T1 - Finite element analysis on the buckling property of variable angle tow laminates

AU - Yang, Junbo

AU - Song, Bifeng

AU - Zhong, Xiaoping

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N2 - As a new kind of variable angle tow (VAT) placement technology, continuous tow shearing (CTS) could significantly overcome process-induced defects in the traditional automated fiber placement (AFP). Taking the VAT laminates made by CTS and AFP respectively as research objects, the finite element analysis of their buckling property were carried out. Under the axial end shortening, based on the stack sequence[0±＜0|75＞]4s, the stress resultant distribution of CTS laminate and AFP laminate were compared. After that, the effect of minimum turning radius on these two placement technologies was demonstrated. The result shows that CTS laminate performs better than AFP laminate on buckling for its variable thickness character, and AFP's usage is restricted when the laminate dimension is small for the constraint of minimum turning radius, while CTS is suitable

AB - As a new kind of variable angle tow (VAT) placement technology, continuous tow shearing (CTS) could significantly overcome process-induced defects in the traditional automated fiber placement (AFP). Taking the VAT laminates made by CTS and AFP respectively as research objects, the finite element analysis of their buckling property were carried out. Under the axial end shortening, based on the stack sequence[0±＜0|75＞]4s, the stress resultant distribution of CTS laminate and AFP laminate were compared. After that, the effect of minimum turning radius on these two placement technologies was demonstrated. The result shows that CTS laminate performs better than AFP laminate on buckling for its variable thickness character, and AFP's usage is restricted when the laminate dimension is small for the constraint of minimum turning radius, while CTS is suitable

KW - Automated fiber placement

KW - Continuous tow shearing

KW - For all kinds of dimensions.

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KW - Minimum turning radius

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Finite element analysis on the buckling property of variable angle tow laminates

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Keywords

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