Dual-scale visualization of resin flow for liquid composite molding processes

Helena Teixidó; Baris Caglar; Véronique Michaud

Dual-scale visualization of resin flow for liquid composite molding processes

Helena Teixidó, Baris Caglar, Véronique Michaud

Aerospace Manufacturing Technologies

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

Visualization of resin flow progression through fibrous preforms is often sought to elucidate flow patterns and validate models for filling prediction for liquid composite molding processes. Here, conventional X-ray radiography is compared to X-ray phase contrast technique to image in-situ constant flow rate impregnation of a non-translucent unidirectional carbon fabric. X-ray attenuation of the fluid phase was increased by using a ZnI2-based contrasting agent, leading to enough contrast between the liquid and the low density fibers. We proved the suitability of conventional X-ray transmission to visualize fluid paths by elucidating different flow patterns, spanning from capillary to viscous regimes and a macro-void entrapment phenomenon

Original language	English
Title of host publication	Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
Subtitle of host publication	Vol 2 – Manufacturing
Editors	Anastasios P. Vassilopoulos, Véronique Michaud
Place of Publication	Lausanne
Publisher	EPFL Lausanne, Composite Construction Laboratory
Pages	1013-1020
Number of pages	8
ISBN (Electronic)	978-2-9701614-0-0
Publication status	Published - 2022
Event	20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022 Conference number: 20

Conference

Conference	20th European Conference on Composite Materials
Abbreviated title	ECCM20
Country/Territory	Switzerland
City	Lausanne
Period	26/06/22 → 30/06/22

Keywords

Liquid Composite Molding (LCM)
Resin flow
Saturation curve
Process monitoring; X-ray imaging

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ECCM2012Final published version, 13.1 MBLicence: CC BY-NC

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Teixidó, Helena ; Caglar, Baris ; Michaud, Véronique. / Dual-scale visualization of resin flow for liquid composite molding processes. Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 2 – Manufacturing. editor / Anastasios P. Vassilopoulos ; Véronique Michaud. Lausanne : EPFL Lausanne, Composite Construction Laboratory, 2022. pp. 1013-1020

@inproceedings{bf4c72999c4b4c2a934d8b2f25b9d0c6,

title = "Dual-scale visualization of resin flow for liquid composite molding processes",

abstract = "Visualization of resin flow progression through fibrous preforms is often sought to elucidate flow patterns and validate models for filling prediction for liquid composite molding processes. Here, conventional X-ray radiography is compared to X-ray phase contrast technique to image in-situ constant flow rate impregnation of a non-translucent unidirectional carbon fabric. X-ray attenuation of the fluid phase was increased by using a ZnI2-based contrasting agent, leading to enough contrast between the liquid and the low density fibers. We proved the suitability of conventional X-ray transmission to visualize fluid paths by elucidating different flow patterns, spanning from capillary to viscous regimes and a macro-void entrapment phenomenon ",

keywords = "Liquid Composite Molding (LCM), Resin flow, Saturation curve, Process monitoring; X-ray imaging",

author = "Helena Teixid{\'o} and Baris Caglar and V{\'e}ronique Michaud",

year = "2022",

language = "English",

pages = "1013--1020",

editor = "Vassilopoulos, {Anastasios P. } and Michaud, {V{\'e}ronique }",

booktitle = "Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability",

publisher = "EPFL Lausanne, Composite Construction Laboratory",

note = "20th European Conference on Composite Materials : Composites Meet Sustainability, ECCM20 ; Conference date: 26-06-2022 Through 30-06-2022",

}

Teixidó, H, Caglar, B & Michaud, V 2022, Dual-scale visualization of resin flow for liquid composite molding processes. in AP Vassilopoulos & V Michaud (eds), Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 2 – Manufacturing. EPFL Lausanne, Composite Construction Laboratory, Lausanne, pp. 1013-1020, 20th European Conference on Composite Materials, Lausanne, Switzerland, 26/06/22.

Dual-scale visualization of resin flow for liquid composite molding processes. / Teixidó, Helena; Caglar, Baris; Michaud, Véronique.
Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 2 – Manufacturing. ed. / Anastasios P. Vassilopoulos; Véronique Michaud. Lausanne: EPFL Lausanne, Composite Construction Laboratory, 2022. p. 1013-1020.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Dual-scale visualization of resin flow for liquid composite molding processes

AU - Teixidó, Helena

AU - Caglar, Baris

AU - Michaud, Véronique

N1 - Conference code: 20

PY - 2022

Y1 - 2022

N2 - Visualization of resin flow progression through fibrous preforms is often sought to elucidate flow patterns and validate models for filling prediction for liquid composite molding processes. Here, conventional X-ray radiography is compared to X-ray phase contrast technique to image in-situ constant flow rate impregnation of a non-translucent unidirectional carbon fabric. X-ray attenuation of the fluid phase was increased by using a ZnI2-based contrasting agent, leading to enough contrast between the liquid and the low density fibers. We proved the suitability of conventional X-ray transmission to visualize fluid paths by elucidating different flow patterns, spanning from capillary to viscous regimes and a macro-void entrapment phenomenon

AB - Visualization of resin flow progression through fibrous preforms is often sought to elucidate flow patterns and validate models for filling prediction for liquid composite molding processes. Here, conventional X-ray radiography is compared to X-ray phase contrast technique to image in-situ constant flow rate impregnation of a non-translucent unidirectional carbon fabric. X-ray attenuation of the fluid phase was increased by using a ZnI2-based contrasting agent, leading to enough contrast between the liquid and the low density fibers. We proved the suitability of conventional X-ray transmission to visualize fluid paths by elucidating different flow patterns, spanning from capillary to viscous regimes and a macro-void entrapment phenomenon

KW - Liquid Composite Molding (LCM)

KW - Resin flow

KW - Saturation curve

KW - Process monitoring; X-ray imaging

M3 - Conference contribution

SP - 1013

EP - 1020

BT - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability

A2 - Vassilopoulos, Anastasios P.

A2 - Michaud, Véronique

PB - EPFL Lausanne, Composite Construction Laboratory

CY - Lausanne

T2 - 20th European Conference on Composite Materials

Y2 - 26 June 2022 through 30 June 2022

ER -

Dual-scale visualization of resin flow for liquid composite molding processes

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Keywords

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