Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres
Hollow glass microsphere (HGM) reinforced composites are a suitable alternative to energy absorption materials in the automotive and aerospace industries, because of their high crush efficiency and energy absorption characteristics. In this study, a polyurethane elastomeric matrix was reinforced wit...
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MDPI AG
2024-12-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/11/12/1012 |
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| author | Gabrielle Schumacher Colleen M. Murray Jungjin Park Norman M. Wereley |
| author_facet | Gabrielle Schumacher Colleen M. Murray Jungjin Park Norman M. Wereley |
| author_sort | Gabrielle Schumacher |
| collection | DOAJ |
| description | Hollow glass microsphere (HGM) reinforced composites are a suitable alternative to energy absorption materials in the automotive and aerospace industries, because of their high crush efficiency and energy absorption characteristics. In this study, a polyurethane elastomeric matrix was reinforced with HGMs for HGM loadings ranging from 0 to 70 vol% (volume fraction). Quasi-static uniaxial compression tests were performed, subjecting the composite to compressive strains of up to 65%, to assess stress vs. strain and energy absorption characteristics. The results reveal that samples with a higher concentration of spheres generally exhibit better crush efficiency. Specifically, the highest crush efficiency was observed in samples with a 70 vol% HGM loading. A similar relationship was reflected in the energy absorption efficiency results, with the highest energy absorption observed in the 65 vol% sample. A correlation exists between the concentration of HGMs and important metrics such as mean crush stress and energy absorption efficiency. However, it is crucial to note that the optimal choice of sphere concentration varies depending on the desired performance characteristics of the material. |
| format | Article |
| id | doaj-art-bc71bf0eba6442409ef0bf4f613ba073 |
| institution | DOAJ |
| issn | 2226-4310 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj-art-bc71bf0eba6442409ef0bf4f613ba0732025-08-20T02:56:03ZengMDPI AGAerospace2226-43102024-12-011112101210.3390/aerospace11121012Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass MicrospheresGabrielle Schumacher0Colleen M. Murray1Jungjin Park2Norman M. Wereley3Composites Research Laboratory, Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USAComposites Research Laboratory, Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USAComposites Research Laboratory, Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USAComposites Research Laboratory, Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USAHollow glass microsphere (HGM) reinforced composites are a suitable alternative to energy absorption materials in the automotive and aerospace industries, because of their high crush efficiency and energy absorption characteristics. In this study, a polyurethane elastomeric matrix was reinforced with HGMs for HGM loadings ranging from 0 to 70 vol% (volume fraction). Quasi-static uniaxial compression tests were performed, subjecting the composite to compressive strains of up to 65%, to assess stress vs. strain and energy absorption characteristics. The results reveal that samples with a higher concentration of spheres generally exhibit better crush efficiency. Specifically, the highest crush efficiency was observed in samples with a 70 vol% HGM loading. A similar relationship was reflected in the energy absorption efficiency results, with the highest energy absorption observed in the 65 vol% sample. A correlation exists between the concentration of HGMs and important metrics such as mean crush stress and energy absorption efficiency. However, it is crucial to note that the optimal choice of sphere concentration varies depending on the desired performance characteristics of the material.https://www.mdpi.com/2226-4310/11/12/1012elastomeric matrix compositesparticle reinforcementhollow glass microspheresenergy absorptionaxial crushcrush efficiency |
| spellingShingle | Gabrielle Schumacher Colleen M. Murray Jungjin Park Norman M. Wereley Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres Aerospace elastomeric matrix composites particle reinforcement hollow glass microspheres energy absorption axial crush crush efficiency |
| title | Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres |
| title_full | Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres |
| title_fullStr | Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres |
| title_full_unstemmed | Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres |
| title_short | Energy Absorption Behavior of Elastomeric Matrix Composites Reinforced with Hollow Glass Microspheres |
| title_sort | energy absorption behavior of elastomeric matrix composites reinforced with hollow glass microspheres |
| topic | elastomeric matrix composites particle reinforcement hollow glass microspheres energy absorption axial crush crush efficiency |
| url | https://www.mdpi.com/2226-4310/11/12/1012 |
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