| 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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Meijer, Heh
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2016Global and local large-deformation response of sub-micron, soft- and hard-particle filled polycarbonate
- 2015Processing and performance of aromatic-aliphatic thermotropic polyesters based on vanillic acidcitations
- 2011Criteria to predict the embrittlement of polycarbonate
- 2011Extending the EGP constitutive model for polymer glasses to multiple relaxation times
- 2009A novel dilatometer for PVT measurements of polymers at high cooling - and shear ratescitations
- 2008An analytical method to predict fatigue life of thermoplastics in uniaxial loading: sensitivity to wave type, frequency and stress amplitudecitations
- 2008Fatigue life predictions for glassy polymers : a constitutive approachcitations
- 2006Influence of interfacial tension on the morphology of polymer blends
- 2005Quantitative prediction of long-term failure of Polycarbonate
- 2005The influence of cooling rate on the specific volume of isotactic poly(propylene) at elevated pressures
- 2004Structure, deformation, and failure of flow-oriented semicrystalline polymers
- 2004Prediction of long-term failure in glassy polymers
- 2004Intrinsic deformation behavior of semicrystalline polymers
- 2003Kinetics of ageing and re-embrittlement of mechanically rejuvenated polystyrene
- 2003On the origin of strain hardening in glassy polymers
- 2003Localisation phenomena in glassy polymers: influence of thermal and mechanical history
- 2001A 3-D finite element model for gas-assisted injection molding - simulations and experiments
- 2001Polymer structure development during flow : monitoring
- 2001Temporary toughening of polystyrene through mechanical pre-conditioning
- 2000Predictive modelling of the properties and toughness of polymeric materials, Part I: Why is polystyrene brittle and polycarbonate tough?citations
- 2000Predictive modelling of the properties and toughness of polymeric materials, Part III: Simultaneous prediction of micro- and macrostructural deformation of rubber-modified polymerscitations
- 2000Predictive modelling of the properties and toughness of polymeric materials, part II: Effect of microstructural properties on the macroscopic response of rubber-modified polymerscitations
Places of action
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article
An analytical method to predict fatigue life of thermoplastics in uniaxial loading: sensitivity to wave type, frequency and stress amplitude
Abstract
A method is presented that allows fatigue life predictions on the basis of creep life data. The approach is based on the assumption that the time-dependent failure of polymers is determined by the intrinsic strain softening that is initiated when a critical threshold value of the plastic strain is surpassed. To facilitate fatigue predictions, an acceleration factor is defined that indicates how much faster plastic strain is accumulated by a cyclic signal compared to its static mean stress. Analytical solutions of the acceleration factor are presented for triangular and square waves, which predict that only the stress amplitude of the cyclic signal and the material’s stress dependency affect fatigue life, whereas frequency plays no role. Verification using several glassy and semicrystalline polymers demonstrates that this method yields accurate quantitative lifetime predictions not only for polymers that exhibit ductile failure but also for those that display brittle fracture, provided that fracture is preceded by (localized) plastic flow.