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Delamination prediction on CFRP materials subjected to a lightning strike

Delamination prediction on CFRP materials subjected to a lightning strike
Delamination prediction on CFRP materials subjected to a lightning strike
This paper presents a coupled thermal-electric-mechanical model to predict the delamination damage of a Carbon Fiber Reinforced Polymer (CFRP) material when subjected to a lightning strike. A Finite Element Model (FEM) is used to predict the heat response of the CFRP material by solving the Joule heating governing equations. The results of the heat response are coupled with thermal stresses to predicte interlaminar stresses. A bilinear traction law is used to predict the delamination of the laminate. Solutions to the model are developed using a time dependent simulation with the 10/350µs standard waveform to mimic a typical lightning strike on a wind turbine blade in accordance to IEC61400 section 24 Ed 1.0. The time dependent model implements damage criteria and is able to identify damaged elements. The COMSOL software engine was used to derive the results from the thermal-electrical-mechanical model. The final result is a delamination map of the CFRP panel subjected to a lightning discharge.
Lightning Damage, wind turbine blades, Delamination, Multiphysics modeling, Joule heating
Harrell, Timothy M.
c97349b6-6f27-423d-b3d1-e35b30552692
Thomsen, Ole Thybo
f3e60b22-a09f-4d58-90da-d58e37d68047
Dulieu-Barton, Janice M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Carloni, Lisa
7913c4dc-7c4e-4e3b-8922-f0f150c87d8f
Harrell, Timothy M.
c97349b6-6f27-423d-b3d1-e35b30552692
Thomsen, Ole Thybo
f3e60b22-a09f-4d58-90da-d58e37d68047
Dulieu-Barton, Janice M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Carloni, Lisa
7913c4dc-7c4e-4e3b-8922-f0f150c87d8f

Harrell, Timothy M., Thomsen, Ole Thybo, Dulieu-Barton, Janice M. and Carloni, Lisa (2018) Delamination prediction on CFRP materials subjected to a lightning strike. 18th European Conference on Composite Materials, Greece. 24 - 28 Jun 2018. 6 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents a coupled thermal-electric-mechanical model to predict the delamination damage of a Carbon Fiber Reinforced Polymer (CFRP) material when subjected to a lightning strike. A Finite Element Model (FEM) is used to predict the heat response of the CFRP material by solving the Joule heating governing equations. The results of the heat response are coupled with thermal stresses to predicte interlaminar stresses. A bilinear traction law is used to predict the delamination of the laminate. Solutions to the model are developed using a time dependent simulation with the 10/350µs standard waveform to mimic a typical lightning strike on a wind turbine blade in accordance to IEC61400 section 24 Ed 1.0. The time dependent model implements damage criteria and is able to identify damaged elements. The COMSOL software engine was used to derive the results from the thermal-electrical-mechanical model. The final result is a delamination map of the CFRP panel subjected to a lightning discharge.

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Harrell_ECCM18 - Accepted Manuscript
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More information

Published date: 24 June 2018
Venue - Dates: 18th European Conference on Composite Materials, Greece, 2018-06-24 - 2018-06-28
Keywords: Lightning Damage, wind turbine blades, Delamination, Multiphysics modeling, Joule heating

Identifiers

Local EPrints ID: 432405
URI: http://eprints.soton.ac.uk/id/eprint/432405
PURE UUID: 125a54b1-fa98-44c8-83b3-6a5a44ded7af
ORCID for Timothy M. Harrell: ORCID iD orcid.org/0000-0002-0783-533X

Catalogue record

Date deposited: 12 Jul 2019 16:30
Last modified: 12 Aug 2020 01:44

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