| 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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Alava, Mikko J.
National Centre for Nuclear Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Viscoelastic phenomena in methylcellulose aqueous systems : Application of fractional calculuscitations
- 2024Atomistic-level analysis of nanoindentation-induced plasticity in arc-melted NiFeCrCo alloys: The role of stacking faultscitations
- 2024Viscoelastic phenomena in methylcellulose aqueous systems:Application of fractional calculuscitations
- 2024Accelerated design of solid bio-based foams for plastics substitutescitations
- 2023Atomistic insights into nanoindentation-induced deformation of α-Al2O3 single crystalscitations
- 2023Striation lines in intermittent fatigue crack growth in an Al alloycitations
- 2022Hierarchical Slice Patterns Inhibit Crack Propagation in Brittle Sheetscitations
- 2022Shear banding instability in multicomponent metallic glasses: Interplay of composition and short-range ordercitations
- 2021Fatigue crack growth in an aluminum alloy: Avalanches and coarse graining to growth lawscitations
- 2020Propagating bands of plastic deformation in a metal alloy as critical avalanchescitations
- 2020Crossover from mean-field compression to collective phenomena in low-density foam-formed fiber materialcitations
- 2018Effects of precipitates and dislocation loops on the yield stress of irradiated ironcitations
- 2017Start-up inertia as an origin for heterogeneous flowcitations
- 2016Predicting sample lifetimes in creep fracture of heterogeneous materialscitations
- 2016Glassy features of crystal plasticitycitations
- 2013The influence of shear on the dewatering of high consistency nanofibrillated cellulose furnishescitations
- 2010Fracture roughness in three-dimensional beam lattice systemscitations
- 2009Optimization and Plasticity in Disordered Mediacitations
- 2008Fracture size effects from disordered lattice modelscitations
Places of action
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article
Crossover from mean-field compression to collective phenomena in low-density foam-formed fiber material
Abstract
| openaire: EC/H2020/857470/EU//NOMATEN ; We study the compression of low-weight foam-formed materials made out of wood fibers. Initially the stress-strain behavior follows mean-field like response, related to the buckling of fiber segments as dictated by the random three-dimensional geometry. Our Acoustic Emission (AE) measurements correlate with the predicted number of segment bucklings for increasing strain. However, the experiments reveal a transition to collective phenomena as the strain increases sufficiently. This is also seen in the gradual failure of the theory to account for the stress-strain curves. The collective avalanches exhibit scale-free features both as regards the AE energy distribution and the AE waiting time distributions with both exponents having values close to 2. In cyclic compression tests, significant increases in the accumulated acoustic energy are found only when the compression exceeds the displacement of the previous cycle, which further confirms other sources of acoustic events than fiber bending. ; Peer reviewed