team:gdeliege
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team:gdeliege [2015/08/11 17:00] – [Composite materials] geoffrey | team:gdeliege [2015/08/13 16:22] – geoffrey | ||
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====== Geoffrey DELIEGE ====== | ====== Geoffrey DELIEGE ====== | ||
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- | Research engineer | ||
===== Contact ===== | ===== Contact ===== | ||
- | // | + | <WRAP left> |
- | //Phone// : +32 (0)4 366 95 91 \\ | + | {{ : |
- | // | + | </WRAP> |
- | Quartier Polytech 1 - B52/3 (office +2/541) \\ | + | |
- | Allée de la Découverte 13 A \\ | + | < |
- | B-4000 Liège, BELGIUM | + | Email : geoffrey.deliege@ulg.ac.be |
+ | Phone : +32 (0)4 366 95 91 | ||
+ | Mail | ||
+ | Quartier Polytech 1 | ||
+ | Allée de la Découverte 13 A | ||
+ | B-4000 Liège, BELGIUM | ||
+ | </ | ||
===== Research activities ===== | ===== Research activities ===== | ||
- | ==== Composite materials ==== | + | | {{ : |
- | + | ||
- | Carbon-Fibre-Reinforced Polymers (CFRP) are now widely used in aerospace industry | + | |
- | thanks to their high strength-to-weight ratio. | + | |
- | However, the numerical simulation of CFRP laminates up to failure is not trivial: | + | |
- | laminates have anisotropic mechanical properties and | + | |
- | laminate damage results from a combination of microscopic mechanisms | + | |
- | (fibre brittle failure, fibre-matrix debonding, matrix ductile failure and delamination) | + | |
- | that are not easily described at a macroscopic level. | + | |
- | + | ||
- | My objective was to implement a material model for composite plies with woven fibre | + | |
- | reinforcement in Metafor. | + | |
- | This model is inspired by the meso-model | + | |
- | proposed by P. Ladevèze and O. Allix [1-2] for unidirectional | + | |
- | composites as well as the 2D model for woven composites proposed by C. Hochard [3]. | + | |
- | + | ||
- | The idea is to describe the laminate as a stack of 3D orthotropic plies separated by 2D interfaces. | + | |
- | In a direction parallel to the fibres, | + | |
- | the plies are elastic and subject to brittle fracture; | + | |
- | in shear, an elastoplastic behaviour is assumed and progressive damage is introduced. | + | |
- | The 2D interfaces between the plies are elastic with progressive damage. | + | |
- | Practical information on the | + | |
- | [[doc: | + | |
- | and | + | |
- | [[doc: | + | |
- | is available on the Metafor web page. | + | |
- | + | ||
- | One interesting feature of Ladevèze and Allix' | + | |
- | can be linked to physical quantities. | + | |
- | Therefore, these parameters can be identified with suitable experimental tests. | + | |
- | + | ||
- | {{ : | + | |
- | + | ||
- | == References == | + | |
- | + | ||
- | [1] P. Ladevèze, E. Le Dantec. //Damage modelling of the elementary ply for laminated composites.// | + | |
- | [2] O. Allix, P. Ladevèze. // | + | |
- | [3] C. Hochard, P.-A. Aubourg, J.-P. Charles. //Modelling of the mechanical behaviour of woven-fabric CFRP laminates up to failure//. Composites Science and Technology, Vol. 61, pp. 221–230, 2001 \\ | + | |
+ | [[team: | ||
+ | [[team: | ||
+ | [[team: | ||
[[team: | [[team: | ||
- | [[team: | + | [[team: |
===== Publications ===== | ===== Publications ===== |
team/gdeliege.txt · Last modified: 2024/02/26 14:09 by boman