Deformation and fracture of lithosphere-inspired polymeric multi-layer composites
Inspired by the diversity of structures and patterns inherent in the earth's lithosphere, this study endeavors to enhance the interplay between stiffness and toughness through the introduction of a new class of polymeric multi-layer composite materials termed by the authors as ''litho...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024017717 |
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| author | Christoph Waly Rita Höller Thomas Griesser Florian Arbeiter |
| author_facet | Christoph Waly Rita Höller Thomas Griesser Florian Arbeiter |
| author_sort | Christoph Waly |
| collection | DOAJ |
| description | Inspired by the diversity of structures and patterns inherent in the earth's lithosphere, this study endeavors to enhance the interplay between stiffness and toughness through the introduction of a new class of polymeric multi-layer composite materials termed by the authors as ''lithomers''. Structured single-edge notched bending specimens were fabricated using a combination of additive manufacturing and casting, employing two different methacrylate-thiol resins. The outer layers exhibit a stiff and brittle characteristic, while the layer in between is compliant in nature. Three types of lithomers with wave-like structures and one with a rectilinear structure were investigated regarding their stiffness and toughness in a 3-point bending setup. The results were compared with those of a pure stiff matrix material. The findings revealed that fracture toughness increased regardless of the interlayer's shape compared to the pure matrix material. Correspondingly, this enhancement in fracture toughness correlated with a reduction in stiffness. The most balanced results in terms of stiffness and fracture toughness were achieved, with the lithomer having a wave-like structure in its initial stage. It exhibited a roughly 27 times improvement in fracture toughness with a moderate decrease in stiffness of approx. 1/5 compared to the pure matrix material. |
| format | Article |
| id | doaj-art-990d86ba09104c5f80c3ffeb7dbd19a9 |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-990d86ba09104c5f80c3ffeb7dbd19a92025-08-20T02:34:36ZengElsevierResults in Engineering2590-12302024-12-012410351910.1016/j.rineng.2024.103519Deformation and fracture of lithosphere-inspired polymeric multi-layer compositesChristoph Waly0Rita Höller1Thomas Griesser2Florian Arbeiter3Materials Science and Testing of Polymers, Montanuniversitaet Leoben, Otto Gloeckel-Strasse 2 8700, Leoben, AustriaInstitute of Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Gloeckel-Strasse 2 8700, Leoben, AustriaInstitute of Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Gloeckel-Strasse 2 8700, Leoben, AustriaMaterials Science and Testing of Polymers, Montanuniversitaet Leoben, Otto Gloeckel-Strasse 2 8700, Leoben, Austria; Corresponding author.Inspired by the diversity of structures and patterns inherent in the earth's lithosphere, this study endeavors to enhance the interplay between stiffness and toughness through the introduction of a new class of polymeric multi-layer composite materials termed by the authors as ''lithomers''. Structured single-edge notched bending specimens were fabricated using a combination of additive manufacturing and casting, employing two different methacrylate-thiol resins. The outer layers exhibit a stiff and brittle characteristic, while the layer in between is compliant in nature. Three types of lithomers with wave-like structures and one with a rectilinear structure were investigated regarding their stiffness and toughness in a 3-point bending setup. The results were compared with those of a pure stiff matrix material. The findings revealed that fracture toughness increased regardless of the interlayer's shape compared to the pure matrix material. Correspondingly, this enhancement in fracture toughness correlated with a reduction in stiffness. The most balanced results in terms of stiffness and fracture toughness were achieved, with the lithomer having a wave-like structure in its initial stage. It exhibited a roughly 27 times improvement in fracture toughness with a moderate decrease in stiffness of approx. 1/5 compared to the pure matrix material.http://www.sciencedirect.com/science/article/pii/S2590123024017717LithomersLithomimeticsBiomimeticsFracture toughnessMulti-layered structure |
| spellingShingle | Christoph Waly Rita Höller Thomas Griesser Florian Arbeiter Deformation and fracture of lithosphere-inspired polymeric multi-layer composites Results in Engineering Lithomers Lithomimetics Biomimetics Fracture toughness Multi-layered structure |
| title | Deformation and fracture of lithosphere-inspired polymeric multi-layer composites |
| title_full | Deformation and fracture of lithosphere-inspired polymeric multi-layer composites |
| title_fullStr | Deformation and fracture of lithosphere-inspired polymeric multi-layer composites |
| title_full_unstemmed | Deformation and fracture of lithosphere-inspired polymeric multi-layer composites |
| title_short | Deformation and fracture of lithosphere-inspired polymeric multi-layer composites |
| title_sort | deformation and fracture of lithosphere inspired polymeric multi layer composites |
| topic | Lithomers Lithomimetics Biomimetics Fracture toughness Multi-layered structure |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024017717 |
| work_keys_str_mv | AT christophwaly deformationandfractureoflithosphereinspiredpolymericmultilayercomposites AT ritaholler deformationandfractureoflithosphereinspiredpolymericmultilayercomposites AT thomasgriesser deformationandfractureoflithosphereinspiredpolymericmultilayercomposites AT florianarbeiter deformationandfractureoflithosphereinspiredpolymericmultilayercomposites |