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Mixed-mode partition theories for one-dimensional delamination in laminated composite beams
Completely analytical theories are presented for the mixed-mode partitioning of one-dimensional delamination in laminated composite beams. The work builds on previous research by the authors on one-dimensional fractures in layered isotropic beams. The partition theories are developed within the cont...
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| Format: | Default Article |
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2012
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| Online Access: | https://hdl.handle.net/2134/19922543.v1 |
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| _version_ | 1818165950558502912 |
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| author | Christopher Harvey Simon Wang |
| author_facet | Christopher Harvey Simon Wang |
| author_sort | Christopher Harvey (1256223) |
| collection | Figshare |
| description | Completely analytical theories are presented for the mixed-mode partitioning of one-dimensional delamination in laminated composite beams. The work builds on previous research by the authors on one-dimensional fractures in layered isotropic beams. The partition theories are developed within the contexts of both Euler and Timoshenko beam theories. Two sets of orthogonal pairs of pure modes are found and used to partition mixed modes. Approximate 'averaged partition rules' are also established for 2D elasticity. The beam partition theories and averaged rules are extensively validated against numerical simulations using the finite element method (FEM). The contact behavior of double cantilever beams (DCBs) is also investigated. Two types of contact exist: crack tip running contact, which results in a region of pure mode II; and point contact at the DCB tip, which can result in either in mixed modes or pure mode II. |
| format | Default Article |
| id | rr-article-19922543 |
| institution | Loughborough University |
| publishDate | 2012 |
| record_format | Figshare |
| spelling | rr-article-199225432012-10-13T00:00:00Z Mixed-mode partition theories for one-dimensional delamination in laminated composite beams Christopher Harvey (1256223) Simon Wang (1250952) Laminated composites Mixed-mode fracture Fracture mode partitioning One-dimensional delamination Orthogonal modes Energy release rate <p>Completely analytical theories are presented for the mixed-mode partitioning of one-dimensional delamination in laminated composite beams. The work builds on previous research by the authors on one-dimensional fractures in layered isotropic beams. The partition theories are developed within the contexts of both Euler and Timoshenko beam theories. Two sets of orthogonal pairs of pure modes are found and used to partition mixed modes. Approximate 'averaged partition rules' are also established for 2D elasticity. The beam partition theories and averaged rules are extensively validated against numerical simulations using the finite element method (FEM). The contact behavior of double cantilever beams (DCBs) is also investigated. Two types of contact exist: crack tip running contact, which results in a region of pure mode II; and point contact at the DCB tip, which can result in either in mixed modes or pure mode II.</p> 2012-10-13T00:00:00Z Text Journal contribution 2134/19922543.v1 https://figshare.com/articles/journal_contribution/Mixed-mode_partition_theories_for_one-dimensional_delamination_in_laminated_composite_beams/19922543 CC BY-NC-ND 4.0 |
| spellingShingle | Laminated composites Mixed-mode fracture Fracture mode partitioning One-dimensional delamination Orthogonal modes Energy release rate Christopher Harvey Simon Wang Mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| title | Mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| title_full | Mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| title_fullStr | Mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| title_full_unstemmed | Mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| title_short | Mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| title_sort | mixed-mode partition theories for one-dimensional delamination in laminated composite beams |
| topic | Laminated composites Mixed-mode fracture Fracture mode partitioning One-dimensional delamination Orthogonal modes Energy release rate |
| url | https://hdl.handle.net/2134/19922543.v1 |