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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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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
Influence of strain rate, temperature and fatigue on the radial compression behaviour of Norway spruce
Abstract
<p>A dynamic elastoplastic compression model of Norway spruce for virtual computer optimization of mechanical pulping processes was developed. The empirical wood behaviour was fitted to a Voigt-Kelvin material model, which is based on quasi static compression and high strain rate compression tests (QSCT and HSRT, respectively) of wood at room temperature and at high temperature (80-100°C). The effect of wood fatigue was also included in the model. Wood compression stress-strain curves have an initial linear elastic region, a plateau region and a densification region. The latter was not reached in the HSRT. Earlywood (EW) and latewood (LW) contributions were considered separately. In the radial direction, the wood structure is layered and can well be modelled by serially loaded layers. The EW model was a two part linear model and the LW was modelled by a linear model, both with a strain rate dependent term. The model corresponds well to the measured values and this is the first compression model for EW and LW that is based on experiments under conditions close to those used in mechanical pulping.</p>