Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 6th European Conference on Computational Mechanics |
| Subtitle of host publication | Solids, Structures and Coupled Problems, ECCM 2018 and 7th European Conference on Computational Fluid Dynamics, ECFD 2018 |
| Editors | Roger Owen, Rene de Borst, Jason Reese, Chris Pearce |
| Place of Publication | Barcelona, Spain |
| Pages | 3779-3790 |
| Number of pages | 12 |
| ISBN (electronic) | 978-84-947311-6-7 |
| Publication status | Published - 2018 |
Abstract
Wind turbines have been growing in size significantly during the past years. As a consequence, the mechanical loads acting on the wind turbine components increase as well. This gives rise to the need to develop new or to enhance existing methodologies for failure analyses of wind turbine components. This paper deals with the finite element analysis of adhesive joints in wind turbine rotor blades and addresses both ultimate and fatigue load analyses. For ultimate loading, an equivalent stress approach is utilized. In fatigue, wind turbines experience high amplitudes and very high cycle numbers. Hence, an appropriate fatigue analysis framework is of utmost importance. In this paper a critical plane approach is employed. The model captures multiaxial stress states as required by current design guidelines and takes into account non-proportional stress histories. The paper focuses on the trailing edge adhesive joints, as they are highly stressed in longitudinal direction and shear. Representative numerical examples show that a multiaxial strength analysis for ultimate and fatigue loads is extraordinarily important to design reliable adhesive joints. The necessity to account for non-proportionality in the stress histories is also demonstrated.
Keywords
- failure, fatigue, adhesive, finite element, wind turbine, rotor blade, Wind Turbine, Finite Element, Rotor Blade, Fatigue, Adhesive, Failure
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computer Science Applications
- Computer Science(all)
- Computational Theory and Mathematics
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Proceedings of the 6th European Conference on Computational Mechanics: Solids, Structures and Coupled Problems, ECCM 2018 and 7th European Conference on Computational Fluid Dynamics, ECFD 2018. ed. / Roger Owen; Rene de Borst; Jason Reese; Chris Pearce. Barcelona, Spain, 2018. p. 3779-3790.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research
}
TY - GEN
T1 - Finite element analysis and failure prediction of adhesive joints in wind turbine rotor blades
AU - Balzani, C.
AU - Noever-Castelos, P.
AU - Wentingmann, M.
PY - 2018
Y1 - 2018
N2 - Wind turbines have been growing in size significantly during the past years. As a consequence, the mechanical loads acting on the wind turbine components increase as well. This gives rise to the need to develop new or to enhance existing methodologies for failure analyses of wind turbine components. This paper deals with the finite element analysis of adhesive joints in wind turbine rotor blades and addresses both ultimate and fatigue load analyses. For ultimate loading, an equivalent stress approach is utilized. In fatigue, wind turbines experience high amplitudes and very high cycle numbers. Hence, an appropriate fatigue analysis framework is of utmost importance. In this paper a critical plane approach is employed. The model captures multiaxial stress states as required by current design guidelines and takes into account non-proportional stress histories. The paper focuses on the trailing edge adhesive joints, as they are highly stressed in longitudinal direction and shear. Representative numerical examples show that a multiaxial strength analysis for ultimate and fatigue loads is extraordinarily important to design reliable adhesive joints. The necessity to account for non-proportionality in the stress histories is also demonstrated.
AB - Wind turbines have been growing in size significantly during the past years. As a consequence, the mechanical loads acting on the wind turbine components increase as well. This gives rise to the need to develop new or to enhance existing methodologies for failure analyses of wind turbine components. This paper deals with the finite element analysis of adhesive joints in wind turbine rotor blades and addresses both ultimate and fatigue load analyses. For ultimate loading, an equivalent stress approach is utilized. In fatigue, wind turbines experience high amplitudes and very high cycle numbers. Hence, an appropriate fatigue analysis framework is of utmost importance. In this paper a critical plane approach is employed. The model captures multiaxial stress states as required by current design guidelines and takes into account non-proportional stress histories. The paper focuses on the trailing edge adhesive joints, as they are highly stressed in longitudinal direction and shear. Representative numerical examples show that a multiaxial strength analysis for ultimate and fatigue loads is extraordinarily important to design reliable adhesive joints. The necessity to account for non-proportionality in the stress histories is also demonstrated.
KW - failure
KW - fatigue
KW - adhesive
KW - finite element
KW - wind turbine
KW - rotor blade
KW - Wind Turbine
KW - Finite Element
KW - Rotor Blade
KW - Fatigue
KW - Adhesive
KW - Failure
UR - http://www.scopus.com/inward/record.url?scp=85081060766&partnerID=8YFLogxK
M3 - Conference contribution
SP - 3779
EP - 3790
BT - Proceedings of the 6th European Conference on Computational Mechanics
A2 - Owen, Roger
A2 - de Borst, Rene
A2 - Reese, Jason
A2 - Pearce, Chris
CY - Barcelona, Spain
ER -