Numerical analysis of fibre-bridging in perforated fibre metal laminate
Fibre-metal laminates are a new class of structural used in aerospace, which consists of fibre-reinforced prepegs, sandwiched between metal aluminum sheets. A numerical analysis of the fibre-bridging mechanism in fibre-metal laminates has been carried out using the boundary element and finite elemen...
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| Format: | Thesis |
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2008
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| Online Access: | http://hdl.handle.net/10356/5657 |
| _version_ | 1824456583428440064 |
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| author | Chua, Yih Sheng. |
| author2 | Ang, Hock Eng |
| author_facet | Ang, Hock Eng Chua, Yih Sheng. |
| author_sort | Chua, Yih Sheng. |
| collection | NTU |
| description | Fibre-metal laminates are a new class of structural used in aerospace, which consists of fibre-reinforced prepegs, sandwiched between metal aluminum sheets. A numerical analysis of the fibre-bridging mechanism in fibre-metal laminates has been carried out using the boundary element and finite element method. The fibre bridging stress and stress intensity factors was determined based on the fracture mechanics approach. The theory of linear elastic fracture mechanics, the formulation of the boundary integral equation with quarter-point crack-tip element and toughening mechanism in composite materials are also reviewed in this study. The effects of varying geometric parameters, the extent of bridging zone and the delamination shape between the prepeg and metal layers on the fibre bridging strength was also studied. The numerical analysis was extended to single perforated fibre-metal laminates and those containing multiple auxiliary holes was also performed. The numerical results obtained would be useful to obtain a better qualitative understanding of the crack-face bridging mechanism in fibre-metal laminates. |
| first_indexed | 2025-02-19T03:56:24Z |
| format | Thesis |
| id | ntu-10356/5657 |
| institution | Nanyang Technological University |
| last_indexed | 2025-02-19T03:56:24Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/56572023-03-11T17:05:53Z Numerical analysis of fibre-bridging in perforated fibre metal laminate Chua, Yih Sheng. Ang, Hock Eng School of Mechanical and Production Engineering DRNTU::Engineering::Aeronautical engineering::Materials of construction Fibre-metal laminates are a new class of structural used in aerospace, which consists of fibre-reinforced prepegs, sandwiched between metal aluminum sheets. A numerical analysis of the fibre-bridging mechanism in fibre-metal laminates has been carried out using the boundary element and finite element method. The fibre bridging stress and stress intensity factors was determined based on the fracture mechanics approach. The theory of linear elastic fracture mechanics, the formulation of the boundary integral equation with quarter-point crack-tip element and toughening mechanism in composite materials are also reviewed in this study. The effects of varying geometric parameters, the extent of bridging zone and the delamination shape between the prepeg and metal layers on the fibre bridging strength was also studied. The numerical analysis was extended to single perforated fibre-metal laminates and those containing multiple auxiliary holes was also performed. The numerical results obtained would be useful to obtain a better qualitative understanding of the crack-face bridging mechanism in fibre-metal laminates. Master of Engineering (MPE) 2008-09-17T10:55:57Z 2008-09-17T10:55:57Z 2000 2000 Thesis http://hdl.handle.net/10356/5657 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Aeronautical engineering::Materials of construction Chua, Yih Sheng. Numerical analysis of fibre-bridging in perforated fibre metal laminate |
| title | Numerical analysis of fibre-bridging in perforated fibre metal laminate |
| title_full | Numerical analysis of fibre-bridging in perforated fibre metal laminate |
| title_fullStr | Numerical analysis of fibre-bridging in perforated fibre metal laminate |
| title_full_unstemmed | Numerical analysis of fibre-bridging in perforated fibre metal laminate |
| title_short | Numerical analysis of fibre-bridging in perforated fibre metal laminate |
| title_sort | numerical analysis of fibre bridging in perforated fibre metal laminate |
| topic | DRNTU::Engineering::Aeronautical engineering::Materials of construction |
| url | http://hdl.handle.net/10356/5657 |
| work_keys_str_mv | AT chuayihsheng numericalanalysisoffibrebridginginperforatedfibremetallaminate |