| People | Locations | Statistics |
|---|---|---|
| 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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Koivisto, Juha
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Viscoelastic phenomena in methylcellulose aqueous systems : Application of fractional calculuscitations
- 2024Viscoelastic phenomena in methylcellulose aqueous systems:Application of fractional calculuscitations
- 2024Accelerated design of solid bio-based foams for plastics substitutescitations
- 2023Striation lines in intermittent fatigue crack growth in an Al alloycitations
- 2022Hierarchical Slice Patterns Inhibit Crack Propagation in Brittle Sheetscitations
- 2021Fatigue crack growth in an aluminum alloy: Avalanches and coarse graining to growth lawscitations
- 2021Scalable method for bio-based solid foams that mimic woodcitations
- 2021General mean-field theory to predict stress-compression behaviour of lightweight fibrous materials
- 2020Vibration controlled foam yielding
- 2020Crossover from mean-field compression to collective phenomena in low-density foam-formed fiber materialcitations
- 2019Probing the local response of a two-dimensional liquid foamcitations
- 2017Influence of strain rate, temperature and fatigue on the radial compression behaviour of Norway sprucecitations
- 2017Influence of strain rate, temperature and fatigue on the radial compression behaviour of Norway sprucecitations
- 2016Predicting sample lifetimes in creep fracture of heterogeneous materialscitations
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