Dynamic properties of low-density expandable polystyrene concrete materials
Expanded polystyrene (EPS) concrete, known for its environmental friendliness, energy absorption capacity, and low impedance, has significant potential application in the fields of wave absorption and vibration reduction. This study designed and prepared EPS concrete materials with four levels of de...
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Defence Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914724001764 |
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| author | Jue Han Hualin Fan |
| author_facet | Jue Han Hualin Fan |
| author_sort | Jue Han |
| collection | DOAJ |
| description | Expanded polystyrene (EPS) concrete, known for its environmental friendliness, energy absorption capacity, and low impedance, has significant potential application in the fields of wave absorption and vibration reduction. This study designed and prepared EPS concrete materials with four levels of density. Quasi-static uniaxial compression and Split Hopkinson Pressure Bar (SHPB) impact tests were conducted to obtain stress-strain curves, elastic moduli, failure modes, energy absorptions, and strain rate effects of the EPS concrete under quasi-static and dynamic loading conditions. The influences of density on various performance indicators were analyzed. By combining the Zhu-Wang-Tang (ZWT) constitutive model with a modified elastic-brittle model, a modified dynamic constitutive model was proposed. The accuracy of the model was validated by the experimental data. The results indicate that the addition of EPS particles enhances the ductility of the EPS concrete. The EPS concrete has significant strain rate effect, which gets stronger as density increases. The modifiedconstitutive model accurately characterizes the dynamic stress-strain curves of the EPS concrete. |
| format | Article |
| id | doaj-art-a8245993dc0f40b2b6c7a4b3cfd0e35f |
| institution | Kabale University |
| issn | 2214-9147 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj-art-a8245993dc0f40b2b6c7a4b3cfd0e35f2025-01-23T05:26:47ZengKeAi Communications Co., Ltd.Defence Technology2214-91472025-01-014394108Dynamic properties of low-density expandable polystyrene concrete materialsJue Han0Hualin Fan1Army Engineering University of PLA, Nanjing 210007, China; Henan International Joint Laboratory of Dynamics of Impact and Disaster of Engineering Structures, Department of Civil Engineering, Nanyang Institute of Technology, Nanyang 473004, ChinaResearch Center of Lightweight Structures and Intelligent Manufacturing, State Key Laboratory of Mechanics and Control of Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; Corresponding author.Expanded polystyrene (EPS) concrete, known for its environmental friendliness, energy absorption capacity, and low impedance, has significant potential application in the fields of wave absorption and vibration reduction. This study designed and prepared EPS concrete materials with four levels of density. Quasi-static uniaxial compression and Split Hopkinson Pressure Bar (SHPB) impact tests were conducted to obtain stress-strain curves, elastic moduli, failure modes, energy absorptions, and strain rate effects of the EPS concrete under quasi-static and dynamic loading conditions. The influences of density on various performance indicators were analyzed. By combining the Zhu-Wang-Tang (ZWT) constitutive model with a modified elastic-brittle model, a modified dynamic constitutive model was proposed. The accuracy of the model was validated by the experimental data. The results indicate that the addition of EPS particles enhances the ductility of the EPS concrete. The EPS concrete has significant strain rate effect, which gets stronger as density increases. The modifiedconstitutive model accurately characterizes the dynamic stress-strain curves of the EPS concrete.http://www.sciencedirect.com/science/article/pii/S2214914724001764EPS concreteImpact behaviorConstitutive modelSHPB test |
| spellingShingle | Jue Han Hualin Fan Dynamic properties of low-density expandable polystyrene concrete materials Defence Technology EPS concrete Impact behavior Constitutive model SHPB test |
| title | Dynamic properties of low-density expandable polystyrene concrete materials |
| title_full | Dynamic properties of low-density expandable polystyrene concrete materials |
| title_fullStr | Dynamic properties of low-density expandable polystyrene concrete materials |
| title_full_unstemmed | Dynamic properties of low-density expandable polystyrene concrete materials |
| title_short | Dynamic properties of low-density expandable polystyrene concrete materials |
| title_sort | dynamic properties of low density expandable polystyrene concrete materials |
| topic | EPS concrete Impact behavior Constitutive model SHPB test |
| url | http://www.sciencedirect.com/science/article/pii/S2214914724001764 |
| work_keys_str_mv | AT juehan dynamicpropertiesoflowdensityexpandablepolystyreneconcretematerials AT hualinfan dynamicpropertiesoflowdensityexpandablepolystyreneconcretematerials |