Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model
The concept of rocking foundations has been successfully tested and promoted for building and bridge foundations. In this paper, the applicability of rocking foundations to wind turbines is investigated, specifically for wind turbines constructed on undrained clay. An efficient form of von Mises con...
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MDPI AG
2025-01-01
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| author | Behrouz Badrkhani Ajaei Mohamed Hesham El Naggar |
| author_facet | Behrouz Badrkhani Ajaei Mohamed Hesham El Naggar |
| author_sort | Behrouz Badrkhani Ajaei |
| collection | DOAJ |
| description | The concept of rocking foundations has been successfully tested and promoted for building and bridge foundations. In this paper, the applicability of rocking foundations to wind turbines is investigated, specifically for wind turbines constructed on undrained clay. An efficient form of von Mises constitutive model with non-linear kinematic hardening is integrated with the ABAQUS finite element software by a computer code and validated against experimental data. A cohesive contact of foundation–soil with limited tension is applied to simulate suction stresses at the foundation bottom–soil interface, which better represented the rocking foundation behavior. The obtained finite element results demonstrate that by allowing minimal foundation uplift under operational loads, an existing foundation can be used to support loads from a larger wind turbine than it is designed for. Allowing such uplifts corresponds to a rocking foundation design that is demonstrated in this paper to be safe and functional for a wind turbine under both operational and extreme conditions. |
| format | Article |
| id | doaj-art-b3f68617b36e4a34ba07db545f9c56ce |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-b3f68617b36e4a34ba07db545f9c56ce2025-01-10T13:15:37ZengMDPI AGApplied Sciences2076-34172025-01-0115145710.3390/app15010457Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive ModelBehrouz Badrkhani Ajaei0Mohamed Hesham El Naggar1Department of Civil and Environmental Engineering, Western University, 1151 Richmond Street, London, ON N6A 3K7, CanadaDepartment of Civil and Environmental Engineering, Western University, 1151 Richmond Street, London, ON N6A 3K7, CanadaThe concept of rocking foundations has been successfully tested and promoted for building and bridge foundations. In this paper, the applicability of rocking foundations to wind turbines is investigated, specifically for wind turbines constructed on undrained clay. An efficient form of von Mises constitutive model with non-linear kinematic hardening is integrated with the ABAQUS finite element software by a computer code and validated against experimental data. A cohesive contact of foundation–soil with limited tension is applied to simulate suction stresses at the foundation bottom–soil interface, which better represented the rocking foundation behavior. The obtained finite element results demonstrate that by allowing minimal foundation uplift under operational loads, an existing foundation can be used to support loads from a larger wind turbine than it is designed for. Allowing such uplifts corresponds to a rocking foundation design that is demonstrated in this paper to be safe and functional for a wind turbine under both operational and extreme conditions.https://www.mdpi.com/2076-3417/15/1/457soil–structure interactionearthquake ground motionclayfoundationwind turbinesconstitutive model |
| spellingShingle | Behrouz Badrkhani Ajaei Mohamed Hesham El Naggar Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model Applied Sciences soil–structure interaction earthquake ground motion clay foundation wind turbines constitutive model |
| title | Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model |
| title_full | Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model |
| title_fullStr | Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model |
| title_full_unstemmed | Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model |
| title_short | Consideration of Rocking Wind Turbine Foundations on Undrained Clay with an Efficient Constitutive Model |
| title_sort | consideration of rocking wind turbine foundations on undrained clay with an efficient constitutive model |
| topic | soil–structure interaction earthquake ground motion clay foundation wind turbines constitutive model |
| url | https://www.mdpi.com/2076-3417/15/1/457 |
| work_keys_str_mv | AT behrouzbadrkhaniajaei considerationofrockingwindturbinefoundationsonundrainedclaywithanefficientconstitutivemodel AT mohamedheshamelnaggar considerationofrockingwindturbinefoundationsonundrainedclaywithanefficientconstitutivemodel |