On the source of the thermoelastic response from orthotropic fibre reinforced composite laminates

Irene Jiménez-Fortunato; Daniel J Bull; Ole T Thomsen; Janice M Dulieu-Barton

doi:10.1016/j.compositesa.2021.106515

On the source of the thermoelastic response from orthotropic fibre reinforced composite laminates

Irene Jiménez-Fortunato, Daniel J Bull, Ole T Thomsen, Janice M Dulieu-Barton

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

In thermoelastic stress analysis (TSA) of orthotropic laminated polymer composites, heat transfer influences the measured stress induced temperature change, or ‘thermoelastic response’. The composite constituents, including different fibre types, fibre geometry, ply thickness and resin systems, in combination with the manufacturing process means that, even for nominally identical materials, different conditions are generated for heat transfer. Hence, definitively identifying the ‘source’ of the thermoelastic response for a general composite laminate has remained elusive. A procedure based on the simultaneous application of digital image correlation (DIC) and TSA is devised that enables the source of the thermoelastic response to be established categorically. In glass fibre laminates, it is shown that heat conduction cannot take place so the thermoelastic response emanates from the surface resin rich layer. In similar carbon fibre laminates, adiabatic conditions are only met at higher frequencies with the response emanating from the orthotropic surface ply.

Original language	English
Article number	106515
Number of pages	15
Journal	Composites Part A: Applied Science and Manufacturing
Volume	149
Early online date	8 Jun 2021
DOIs	https://doi.org/10.1016/j.compositesa.2021.106515
Publication status	Published - 1 Oct 2021

Bibliographical note

Funding Information:
This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/P006701/1], as part of the EPSRC Future Composites Manufacturing Research Hub. The experimental work described in the paper was conducted in the Testing and Structures Research Laboratory (TSRL) at the University of Southampton. The authors acknowledge the support received from Dr Andy Robinson, the TSRL Principal Experimental Officer. The authors would also like to thank Dr Karthik ‘Ram’ Ramakrishnan for manufacturing of the CFRP panels at the University of Bristol.

Funding Information:
This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/P006701/1], as part of the EPSRC Future Composites Manufacturing Research Hub. The experimental work described in the paper was conducted in the Testing and Structures Research Laboratory (TSRL) at the University of Southampton. The authors acknowledge the support received from Dr Andy Robinson, the TSRL Principal Experimental Officer. The authors would also like to thank Dr Karthik ?Ram? Ramakrishnan for manufacturing of the CFRP panels at the University of Bristol.

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

B-Thermomechanical
B-Optical properties/techniques
D-Thermal analysis
D-Mechanical testing

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10.1016/j.compositesa.2021.106515

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Accepted author manuscript, 1.76 MBLicence: CC BY-NC-ND

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title = "On the source of the thermoelastic response from orthotropic fibre reinforced composite laminates",

abstract = "In thermoelastic stress analysis (TSA) of orthotropic laminated polymer composites, heat transfer influences the measured stress induced temperature change, or {\textquoteleft}thermoelastic response{\textquoteright}. The composite constituents, including different fibre types, fibre geometry, ply thickness and resin systems, in combination with the manufacturing process means that, even for nominally identical materials, different conditions are generated for heat transfer. Hence, definitively identifying the {\textquoteleft}source{\textquoteright} of the thermoelastic response for a general composite laminate has remained elusive. A procedure based on the simultaneous application of digital image correlation (DIC) and TSA is devised that enables the source of the thermoelastic response to be established categorically. In glass fibre laminates, it is shown that heat conduction cannot take place so the thermoelastic response emanates from the surface resin rich layer. In similar carbon fibre laminates, adiabatic conditions are only met at higher frequencies with the response emanating from the orthotropic surface ply.",

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author = "Irene Jim{\'e}nez-Fortunato and Bull, {Daniel J} and Thomsen, {Ole T} and Dulieu-Barton, {Janice M}",

note = "Funding Information: This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/P006701/1], as part of the EPSRC Future Composites Manufacturing Research Hub. The experimental work described in the paper was conducted in the Testing and Structures Research Laboratory (TSRL) at the University of Southampton. The authors acknowledge the support received from Dr Andy Robinson, the TSRL Principal Experimental Officer. The authors would also like to thank Dr Karthik {\textquoteleft}Ram{\textquoteright} Ramakrishnan for manufacturing of the CFRP panels at the University of Bristol. Funding Information: This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/P006701/1], as part of the EPSRC Future Composites Manufacturing Research Hub. The experimental work described in the paper was conducted in the Testing and Structures Research Laboratory (TSRL) at the University of Southampton. The authors acknowledge the support received from Dr Andy Robinson, the TSRL Principal Experimental Officer. The authors would also like to thank Dr Karthik ?Ram? Ramakrishnan for manufacturing of the CFRP panels at the University of Bristol. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

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AU - Jiménez-Fortunato, Irene

AU - Bull, Daniel J

AU - Thomsen, Ole T

AU - Dulieu-Barton , Janice M

N1 - Funding Information: This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/P006701/1], as part of the EPSRC Future Composites Manufacturing Research Hub. The experimental work described in the paper was conducted in the Testing and Structures Research Laboratory (TSRL) at the University of Southampton. The authors acknowledge the support received from Dr Andy Robinson, the TSRL Principal Experimental Officer. The authors would also like to thank Dr Karthik ‘Ram’ Ramakrishnan for manufacturing of the CFRP panels at the University of Bristol. Funding Information: This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/P006701/1], as part of the EPSRC Future Composites Manufacturing Research Hub. The experimental work described in the paper was conducted in the Testing and Structures Research Laboratory (TSRL) at the University of Southampton. The authors acknowledge the support received from Dr Andy Robinson, the TSRL Principal Experimental Officer. The authors would also like to thank Dr Karthik ?Ram? Ramakrishnan for manufacturing of the CFRP panels at the University of Bristol. Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/10/1

Y1 - 2021/10/1

N2 - In thermoelastic stress analysis (TSA) of orthotropic laminated polymer composites, heat transfer influences the measured stress induced temperature change, or ‘thermoelastic response’. The composite constituents, including different fibre types, fibre geometry, ply thickness and resin systems, in combination with the manufacturing process means that, even for nominally identical materials, different conditions are generated for heat transfer. Hence, definitively identifying the ‘source’ of the thermoelastic response for a general composite laminate has remained elusive. A procedure based on the simultaneous application of digital image correlation (DIC) and TSA is devised that enables the source of the thermoelastic response to be established categorically. In glass fibre laminates, it is shown that heat conduction cannot take place so the thermoelastic response emanates from the surface resin rich layer. In similar carbon fibre laminates, adiabatic conditions are only met at higher frequencies with the response emanating from the orthotropic surface ply.

AB - In thermoelastic stress analysis (TSA) of orthotropic laminated polymer composites, heat transfer influences the measured stress induced temperature change, or ‘thermoelastic response’. The composite constituents, including different fibre types, fibre geometry, ply thickness and resin systems, in combination with the manufacturing process means that, even for nominally identical materials, different conditions are generated for heat transfer. Hence, definitively identifying the ‘source’ of the thermoelastic response for a general composite laminate has remained elusive. A procedure based on the simultaneous application of digital image correlation (DIC) and TSA is devised that enables the source of the thermoelastic response to be established categorically. In glass fibre laminates, it is shown that heat conduction cannot take place so the thermoelastic response emanates from the surface resin rich layer. In similar carbon fibre laminates, adiabatic conditions are only met at higher frequencies with the response emanating from the orthotropic surface ply.

KW - B-Thermomechanical

KW - B-Optical properties/techniques

KW - D-Thermal analysis

KW - D-Mechanical testing

U2 - 10.1016/j.compositesa.2021.106515

DO - 10.1016/j.compositesa.2021.106515

M3 - Article (Academic Journal)

SN - 1359-835X

VL - 149

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 106515

ER -

On the source of the thermoelastic response from orthotropic fibre reinforced composite laminates

Abstract

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Keywords

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