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
24 June 2018
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, Megaron Athens International Conference Center, Athens, 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.
Text
Harrell_ECCM18
- Accepted Manuscript
More information
Published date: 24 June 2018
Venue - Dates:
18th European Conference on Composite Materials, Megaron Athens International Conference Center, Athens, 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
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Date deposited: 12 Jul 2019 16:30
Last modified: 16 Mar 2024 02:41
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Contributors
Author:
Timothy M. Harrell
Author:
Lisa Carloni
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