| People | Locations | Statistics |
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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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González, Carlos
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Cytocompatibility, cell‐material interaction, and osteogenic differentiation of MC3T3‐E1 pre‐osteoblasts in contact with engineered Mg/PLA compositescitations
- 2024Medical grade 3D printable bioabsorbable PLDL/Mg and PLDL/Zn composites for biomedical applicationscitations
- 2024Bioabsorbable Composite Laminates of Poly‐Lactic Acid Reinforced with Surface‐Modified Mg Wires for Orthopedic Implant Applicationscitations
- 2023Effect of surface modification on interfacial behavior in bioabsorbable magnesium wire reinforced poly-lactic acid polymer compositescitations
- 2022Influence of hybridisation on energy absorption of 3D woven composites under low-velocity impact loading. Modelling and experimental validationcitations
- 2020Dynamic tensile testing of needle-punched nonwoven fabricscitations
- 2019Thermal oxidation of PEPA-terminated polyimidecitations
- 2015An in situ investigation of microscopic infusion and void transport during vacuum-assisted infiltration by means of X-ray computed tomographycitations
- 2015Comparison of push-in and push-out tests for measuring interfacial shear strength in nano-reinforced composite materialscitations
- 2010Characterization of silicon thin overlayers on rutile TiO2 (110)-(1x1)citations
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article
Dynamic tensile testing of needle-punched nonwoven fabrics
Abstract
The tensile testing of a needle-punched nonwoven fabric is presented. A high-sensitivity Split-Hopkinson Tensile Bar device was specifically designed for this purpose. The strain gauge measurements were combined with high-speed photography and Digital Image Correlation to analyse the deformation micromechanisms at high strain rates. The experimental set-up allowed to determine the wave propagation velocity of the as-received nonwove fabric, the evolution of the strain field with deformation and the wave interaction inside the fabric. The deformation was accommodated by the same micromechanisms observed during quasi-static tensile testing and ballistic impact, which comprised fibre straightening, rotation and sliding. Heterogeneous strain fields were developed in the nonwoven fabric as a result of the non-linear pseudoplastic response of the fabric and the internal dissipation due to the frictional deformation micromechanisms, preventing the propagation of high magnitude strain waves into the specimen. Additionally, the output forces were analysed to determine the influence of high-strain rates in the mechanical response of the nonwoven fabric, finding an increment of the stiffness for low applied strains under dynamic loading. These findings provide the basis to develop strain-rate dependent constitutive models to predict wave propagation in needle-punched nonwoven fabrics when subjected to impact loads.