Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics
Dense ceramics are irreplaceable in applications requiring high mechanical stiffness, chemical and temperature resistance and low weight. To improve their toughness, ceramics can be reinforced with elongated inclusions. Recent manufacturing strategies have been developed to control the orientations...
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| Format: | Journal Article |
| Language: | English |
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2019
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| Online Access: | https://hdl.handle.net/10356/82751 http://hdl.handle.net/10220/49085 |
| _version_ | 1811682898549407744 |
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| author | Le Ferrand, Hortense |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Le Ferrand, Hortense |
| author_sort | Le Ferrand, Hortense |
| collection | NTU |
| description | Dense ceramics are irreplaceable in applications requiring high mechanical stiffness, chemical and temperature resistance and low weight. To improve their toughness, ceramics can be reinforced with elongated inclusions. Recent manufacturing strategies have been developed to control the orientations of disc-like microparticles in polymeric and ceramic matrices and to build periodic microstructures. Given the infinite number of possible microstructures available, modeling tools are required to select the potentially best design. Periodic microstructures can be involved in elastic wave scattering to dissipate mechanical energy from vibrations. In this paper, a model is proposed to determine the frequency bandgaps associated to periodic architectures in composites and ceramics and the influence of microstructural parameters are investigated. The results are used to define guidelines for the future fabrication of hard bulk ceramic materials that combine traditional ceramic’s properties with high vibration resistance. |
| first_indexed | 2024-10-01T04:04:09Z |
| format | Journal Article |
| id | ntu-10356/82751 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:04:09Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/827512023-03-04T17:13:59Z Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics Le Ferrand, Hortense School of Mechanical and Aerospace Engineering Microstructure Engineering::Mechanical engineering Elastic Waves Dense ceramics are irreplaceable in applications requiring high mechanical stiffness, chemical and temperature resistance and low weight. To improve their toughness, ceramics can be reinforced with elongated inclusions. Recent manufacturing strategies have been developed to control the orientations of disc-like microparticles in polymeric and ceramic matrices and to build periodic microstructures. Given the infinite number of possible microstructures available, modeling tools are required to select the potentially best design. Periodic microstructures can be involved in elastic wave scattering to dissipate mechanical energy from vibrations. In this paper, a model is proposed to determine the frequency bandgaps associated to periodic architectures in composites and ceramics and the influence of microstructural parameters are investigated. The results are used to define guidelines for the future fabrication of hard bulk ceramic materials that combine traditional ceramic’s properties with high vibration resistance. Accepted version 2019-07-02T08:13:18Z 2019-12-06T15:04:47Z 2019-07-02T08:13:18Z 2019-12-06T15:04:47Z 2019 Journal Article Le Ferrand, H. (2019). Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics. Composite Structures, 111105-. doi:10.1016/j.compstruct.2019.111105 0263-8223 https://hdl.handle.net/10356/82751 http://hdl.handle.net/10220/49085 10.1016/j.compstruct.2019.111105 en Composite Structures © 2019 Elsevier. All rights reserved. This paper was published in Composite Structures and is made available with permission of Elsevier. 21 p. application/pdf |
| spellingShingle | Microstructure Engineering::Mechanical engineering Elastic Waves Le Ferrand, Hortense Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics |
| title | Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics |
| title_full | Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics |
| title_fullStr | Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics |
| title_full_unstemmed | Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics |
| title_short | Modeling the effect of microstructure on elastic wave propagation in platelet-reinforced composites and ceramics |
| title_sort | modeling the effect of microstructure on elastic wave propagation in platelet reinforced composites and ceramics |
| topic | Microstructure Engineering::Mechanical engineering Elastic Waves |
| url | https://hdl.handle.net/10356/82751 http://hdl.handle.net/10220/49085 |
| work_keys_str_mv | AT leferrandhortense modelingtheeffectofmicrostructureonelasticwavepropagationinplateletreinforcedcompositesandceramics |