| 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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Holopainen, Sami
Université Bourgogne Franche-Comté
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Mechanical Degradation and Fatigue Life of Amorphous Polymerscitations
- 2023Short-to long-term deformation behavior of glassy polymers under cyclic uniaxial, torsional, and multiaxial loads
- 2023Super ductile metallic glasses for energy-saving solid-state processingcitations
- 2023Super ductile metallic glasses for energy-saving solid-state processingcitations
- 2023Mechanical degradation and fatigue life of amorphous polymers
- 2023Modeling of extremely ductile behavior of Zr-based bulk metallic glasses under compressive strain paths for solid-state processingcitations
- 2021Short- to long-term deformation behavior, failure, and service life of amorphous polymers under cyclic torsional and multiaxial loadingscitations
- 2014Influence of damage on inhomogeneous deformation behavior of amorphous glassy polymers. Modeling and algorithmic implementation in a finite element settingcitations
- 2013Modeling of Mechanical Behavior of Amorphous Glassy Polymers
Places of action
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article
Mechanical Degradation and Fatigue Life of Amorphous Polymers
Abstract
Due to favorable properties (cheap price, easy processing, preeminent combination of toughness and strength, clearness, recyclability etc.), amorphous polymers are widely used in windows, sporting goods, vehicles, aeronautic equipment, electronics, and health technology. However, their applications may suffer from fatigue, when material fails at significantly lower stress levels than under monotonic loading conditions; fatigue loads result in polymer degradation which can affect horrific accidents (e.g., the air disaster of China Airlines Flight 611) and tremendous financial losses. Despite this motivation, fatigue behavior of amorphous polymers has been scarcely investigated so far. In this study, micro-mechanical characteristics of amorphous structure and their influence on macroscopic deformation behavior (ratcheting) and fatigue life are investigated. It was found (SEM results) that polymer degradation is the process of failure (shear banding affecting micro-cracking and fracture) causing finally breakdown of polymer network. The degradation process was very rate sensitive, and the crack initiation phase before rapid rupture of the material encompassed the majority (even 95 %) of the total fatigue life. Certain fracture surfaces showed sharpened protrusions indicating that the separation of the fracture surfaces from each other occurred precisely on those protrusions. The vein-like, cellular, and rippled patterns of shear bands on fracture surfaces increased fracture toughness and thus, fatigue resistance and life. ; Peer reviewed