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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ramault, Carla
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Topics
Publications (9/9 displayed)
- 2010Composite material characterization through biaxial testing of cruciform specimens
- 2010Numerical failure analysis of composite structures
- 2009Biaxial Failure Envelopes for Glass Fibre Reinforced Composite Laminates
- 2008The Influence of Biaxial Stress States on the Stiffness of Glass Textile Reinforced Cementitious Composites
- 2008Biaxial Mechanical Fatigue using Cruciform Composite Specimens
- 2008Biaxial testing of fibre reinforced composite laminates
- 2007Experimental and theoretical study of the damage onset in biaxial cruciform specimens under static and hysteresis loading
- 2007A Review Of Biaxial Test Methods For Composites
- 2007Towards the characterisation of biaxial material performance
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document
Towards the characterisation of biaxial material performance
Abstract
To study the behaviour of fibre reinforced composite laminates under in-plane complex stress states a biaxial loading frame has been developed. Using four independent servo-hydraulic actuators a cruciform type specimen is biaxially loaded in its plane. Strength of materials under biaxial in-plane loading and the usage of an inverse method to estimate stiffness are investigated.For obtaining reliable biaxial failure data the design of the cruciform specimen is of paramount importance. Finite element simulations of the cruciform specimen in combination with experiments using digital image correlation technique (DIC)for strain determination has led to the proposal of an optimized geometry which was used to obtain strength data at different loading ratio's. For the identification of the in-plane orthotropic elastic constants an inverse method is presented. The full field displacements and strains are identified by digital image correlation technique and compared with finite element strain results. The engineering constants are unknown parameters in the finite element model. Starting from initial values, these parameters are updated till the computed strain field matches the experimental strain field.