A Finite Element Analysis for the Damaged RotatingComposite Blade
In this paper, the finite element method is used to study the dynamic behavior of the damaged rotating composite blade. Three dimensional, finite element programs were developed using a nine node laminated shell as a discretization element for the blade structure (the same element type is used for d...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Al-Khwarizmi College of Engineering – University of Baghdad
2011-01-01
|
| Series: | Al-Khawarizmi Engineering Journal |
| Subjects: | |
| Online Access: | http://www.iasj.net/iasj?func=fulltext&aId=2251 |
| _version_ | 1818901400371855360 |
|---|---|
| author | Oday I. Abdullah |
| author_facet | Oday I. Abdullah |
| author_sort | Oday I. Abdullah |
| collection | DOAJ |
| description | In this paper, the finite element method is used to study the dynamic behavior of the damaged rotating composite blade. Three dimensional, finite element programs were developed using a nine node laminated shell as a discretization element for the blade structure (the same element type is used for damaged and non-damaged structure). In this analysis the initial stress effect (geometric stiffness) and other rotational effects except the carioles acceleration effect are included. The investigation covers the effect speed of rotation, aspect ratio, skew angle, pre-twist angle, radius to length, layer lamination and fiber orientation of composite blade. After modeling a non-damaged rotating composite blade, the work procedure was to apply different damage cases in reference to the non-damaged structure in order to compute the shift in the fundamental natural frequency and stresses. Damage occurs in several layers of the composite sheet in different locations throughout its volume, and through several layers of the sheet. The numerical results show a good agreement compared with the available investigations using other methods. |
| first_indexed | 2024-12-19T20:19:09Z |
| format | Article |
| id | doaj.art-52993616f7704e3b8fdd288bc1030bcb |
| institution | Directory Open Access Journal |
| issn | 1818-1171 |
| language | English |
| last_indexed | 2024-12-19T20:19:09Z |
| publishDate | 2011-01-01 |
| publisher | Al-Khwarizmi College of Engineering – University of Baghdad |
| record_format | Article |
| series | Al-Khawarizmi Engineering Journal |
| spelling | doaj.art-52993616f7704e3b8fdd288bc1030bcb2022-12-21T20:07:03ZengAl-Khwarizmi College of Engineering – University of BaghdadAl-Khawarizmi Engineering Journal1818-11712011-01-01715675A Finite Element Analysis for the Damaged RotatingComposite BladeOday I. AbdullahIn this paper, the finite element method is used to study the dynamic behavior of the damaged rotating composite blade. Three dimensional, finite element programs were developed using a nine node laminated shell as a discretization element for the blade structure (the same element type is used for damaged and non-damaged structure). In this analysis the initial stress effect (geometric stiffness) and other rotational effects except the carioles acceleration effect are included. The investigation covers the effect speed of rotation, aspect ratio, skew angle, pre-twist angle, radius to length, layer lamination and fiber orientation of composite blade. After modeling a non-damaged rotating composite blade, the work procedure was to apply different damage cases in reference to the non-damaged structure in order to compute the shift in the fundamental natural frequency and stresses. Damage occurs in several layers of the composite sheet in different locations throughout its volume, and through several layers of the sheet. The numerical results show a good agreement compared with the available investigations using other methods.http://www.iasj.net/iasj?func=fulltext&aId=2251Damaged rotating bladecomposite materialsFEMstresses and frequencie. |
| spellingShingle | Oday I. Abdullah A Finite Element Analysis for the Damaged RotatingComposite Blade Al-Khawarizmi Engineering Journal Damaged rotating blade composite materials FEM stresses and frequencie. |
| title | A Finite Element Analysis for the Damaged RotatingComposite Blade |
| title_full | A Finite Element Analysis for the Damaged RotatingComposite Blade |
| title_fullStr | A Finite Element Analysis for the Damaged RotatingComposite Blade |
| title_full_unstemmed | A Finite Element Analysis for the Damaged RotatingComposite Blade |
| title_short | A Finite Element Analysis for the Damaged RotatingComposite Blade |
| title_sort | finite element analysis for the damaged rotatingcomposite blade |
| topic | Damaged rotating blade composite materials FEM stresses and frequencie. |
| url | http://www.iasj.net/iasj?func=fulltext&aId=2251 |
| work_keys_str_mv | AT odayiabdullah afiniteelementanalysisforthedamagedrotatingcompositeblade AT odayiabdullah finiteelementanalysisforthedamagedrotatingcompositeblade |