Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric

Fei Yu; Xiangming Chen; Shuai Chen; Lee T. Harper

doi:10.1007/978-981-19-7652-0_36

Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric

Fei Yu
, Xiangming Chen
, Shuai Chen
, Lee T. Harper

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

A macroscopic finite element model was employed to investigate the forming-induced macroscale defects during double diaphragm forming (DDF) using a bi-axial non-crimp fabric. The forming related wrinkling behaviour was predicted by the simulation considering the bending stiffness of the fabric. The location of wrinkles was influenced by the in-plane shear deformation and bridging force in the fabric-diaphragm assembly. The severity of wrinkles was influenced by the layup sequence and the frictional resistance at the fabric-fabric and fabric-diaphragm interfaces. The quad-axial layup [+45º/−45º, 0º/90º] was found to produce more wrinkles than the single-orientation layup, indicating that the dissimilar shear deformation between plies at different orientations can contribute to fabric wrinkling. A parametric analysis indicated that reducing the coefficients of friction at fabric-fabric and fabric-diaphragm interfaces can mitigate wrinkles. The deformation of fabric plies can be affected by the in-plane distance between preforms, when forming multiple components in one DDF operation. The component spacing therefore needs to be designed to ensure the quality of each preform is not adversely affected during multi-component forming.

Original language	English
Title of host publication	Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	392-402
Number of pages	11
ISBN (Print)	9789811976513
DOIs	https://doi.org/10.1007/978-981-19-7652-0_36
State	Published - 2023
Externally published	Yes
Event	10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022 - Nanchang, China Duration: 9 Oct 2022 → 10 Oct 2022

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	972 LNEE
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022
Country/Territory	China
City	Nanchang
Period	9/10/22 → 10/10/22

Keywords

Defect
Fabric/Textile
Finite element analysis
Preforming

Access to Document

10.1007/978-981-19-7652-0_36

Cite this

Yu, F., Chen, X., Chen, S., & Harper, L. T. (2023). Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric. In Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum (pp. 392-402). (Lecture Notes in Electrical Engineering; Vol. 972 LNEE). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-19-7652-0_36

@inproceedings{9df995910e0e4639bf54825308ce4225,

title = "Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric",

abstract = "A macroscopic finite element model was employed to investigate the forming-induced macroscale defects during double diaphragm forming (DDF) using a bi-axial non-crimp fabric. The forming related wrinkling behaviour was predicted by the simulation considering the bending stiffness of the fabric. The location of wrinkles was influenced by the in-plane shear deformation and bridging force in the fabric-diaphragm assembly. The severity of wrinkles was influenced by the layup sequence and the frictional resistance at the fabric-fabric and fabric-diaphragm interfaces. The quad-axial layup [+45º/−45º, 0º/90º] was found to produce more wrinkles than the single-orientation layup, indicating that the dissimilar shear deformation between plies at different orientations can contribute to fabric wrinkling. A parametric analysis indicated that reducing the coefficients of friction at fabric-fabric and fabric-diaphragm interfaces can mitigate wrinkles. The deformation of fabric plies can be affected by the in-plane distance between preforms, when forming multiple components in one DDF operation. The component spacing therefore needs to be designed to ensure the quality of each preform is not adversely affected during multi-component forming.",

keywords = "Defect, Fabric/Textile, Finite element analysis, Preforming",

author = "Fei Yu and Xiangming Chen and Shuai Chen and Harper, \{Lee T.\}",

note = "Publisher Copyright: {\textcopyright} 2023, Chinese Aeronautical Society.; 10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022 ; Conference date: 09-10-2022 Through 10-10-2022",

year = "2023",

doi = "10.1007/978-981-19-7652-0\_36",

language = "英语",

isbn = "9789811976513",

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}

Yu, F, Chen, X, Chen, S & Harper, LT 2023, Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric. in Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum. Lecture Notes in Electrical Engineering, vol. 972 LNEE, Springer Science and Business Media Deutschland GmbH, pp. 392-402, 10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022, Nanchang, China, 9/10/22. https://doi.org/10.1007/978-981-19-7652-0_36

Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric. / Yu, Fei; Chen, Xiangming; Chen, Shuai et al.
Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum. Springer Science and Business Media Deutschland GmbH, 2023. p. 392-402 (Lecture Notes in Electrical Engineering; Vol. 972 LNEE).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Chen, Xiangming

AU - Chen, Shuai

AU - Harper, Lee T.

PY - 2023

Y1 - 2023

N2 - A macroscopic finite element model was employed to investigate the forming-induced macroscale defects during double diaphragm forming (DDF) using a bi-axial non-crimp fabric. The forming related wrinkling behaviour was predicted by the simulation considering the bending stiffness of the fabric. The location of wrinkles was influenced by the in-plane shear deformation and bridging force in the fabric-diaphragm assembly. The severity of wrinkles was influenced by the layup sequence and the frictional resistance at the fabric-fabric and fabric-diaphragm interfaces. The quad-axial layup [+45º/−45º, 0º/90º] was found to produce more wrinkles than the single-orientation layup, indicating that the dissimilar shear deformation between plies at different orientations can contribute to fabric wrinkling. A parametric analysis indicated that reducing the coefficients of friction at fabric-fabric and fabric-diaphragm interfaces can mitigate wrinkles. The deformation of fabric plies can be affected by the in-plane distance between preforms, when forming multiple components in one DDF operation. The component spacing therefore needs to be designed to ensure the quality of each preform is not adversely affected during multi-component forming.

AB - A macroscopic finite element model was employed to investigate the forming-induced macroscale defects during double diaphragm forming (DDF) using a bi-axial non-crimp fabric. The forming related wrinkling behaviour was predicted by the simulation considering the bending stiffness of the fabric. The location of wrinkles was influenced by the in-plane shear deformation and bridging force in the fabric-diaphragm assembly. The severity of wrinkles was influenced by the layup sequence and the frictional resistance at the fabric-fabric and fabric-diaphragm interfaces. The quad-axial layup [+45º/−45º, 0º/90º] was found to produce more wrinkles than the single-orientation layup, indicating that the dissimilar shear deformation between plies at different orientations can contribute to fabric wrinkling. A parametric analysis indicated that reducing the coefficients of friction at fabric-fabric and fabric-diaphragm interfaces can mitigate wrinkles. The deformation of fabric plies can be affected by the in-plane distance between preforms, when forming multiple components in one DDF operation. The component spacing therefore needs to be designed to ensure the quality of each preform is not adversely affected during multi-component forming.

KW - Defect

KW - Fabric/Textile

KW - Finite element analysis

KW - Preforming

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SN - 9789811976513

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BT - Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum

PB - Springer Science and Business Media Deutschland GmbH

T2 - 10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022

Y2 - 9 October 2022 through 10 October 2022

ER -

Yu F, Chen X, Chen S, Harper LT. Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric. In Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum. Springer Science and Business Media Deutschland GmbH. 2023. p. 392-402. (Lecture Notes in Electrical Engineering). doi: 10.1007/978-981-19-7652-0_36

Numerical Study on the Formation of Defects During Double Diaphragm Forming Using a Biaxial Non-crimp Fabric

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Keywords

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