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| Naji, M. |
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| Mohamed, Tarek |
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| Petrov, R. H. | Madrid |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Rosa, Pedro
Laboratoire Bourguignon des Matériaux et Procédés
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Blast fragment impact of angle-ply composite structures for buildings wall protectioncitations
- 2023Influence of post-processing milling conditions on the machinability and residual stresses evolution of LPBF 18Ni300 maraging steelcitations
- 2021Numerical-experimental plastic-damage characterisation of additively manufactured 18ni300 maraging steel by means of multiaxial double-notched specimenscitations
- 2020A novel method for compressive load-displacement measurements at very high strain rates of para-aramid fabrics
- 2019Optimization-based procedure for the determination of the constitutive model coefficients used in machining simulationscitations
- 2019Optimization-based procedure for the determination of the constitutive model coefficients used in machining simulations
- 2012Compression Testing Using a CAM-Driven Electromagnetic Machine
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article
Blast fragment impact of angle-ply composite structures for buildings wall protection
Abstract
This paper investigates the fragment performance of several composite panels for attaching to the inside walls of a building structure. These panels were developed using different types of fiber woven fabrics (W0, W90) combined with distinct layers orientations (angle-ply effect) of L0/0 and L0/15. Aramid, E-glass, and S-glass fiber fabrics impregnated with thermosetting epoxy resin, and a prepreg of Ultra High Molecular Weight Polyethylene (HB24) were employed. The panels are subjected to ballistic impact using different fragments under impact velocities in the range of 120 to 420 m/s. In order to measure the energy absorbed by the ballistic panels, the impact velocity and the residual velocity of the fragment were measured with laser chronographs placed before and after the laminated test specimens. The paper demonstrates quantitatively that the angle-ply laminates produced using L0/15 woven fabric orientation presented a higher impact energy absorption, promoting higher reductions on the fragment residual velocity compared to the L0/0 orientations. The laminates produced using UHMWPE fibers (HB24) presented better ballistic properties compared to the other fibers. Furthermore, it was noted that the energy dissipation rate is linearly correlated with the impact velocity and is independent of the fragment geometry. ; (undefined)