Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio
The introduction of negative Poisson's ratio materials in engineering has opened new possibilities in materials science, acoustics, and civil engineering. Isotropic elastic foam with a negative Poisson's ratio of -0.7 has been produced which expands laterally when stretched, in contrast to...
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2021
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oai:doaj.org-article:2e3a5d1b18ae4ad68b527515d79d36572021-11-18T04:51:58ZLongitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio2666-359710.1016/j.finmec.2021.100035https://doaj.org/article/2e3a5d1b18ae4ad68b527515d79d36572021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666359721000263https://doaj.org/toc/2666-3597The introduction of negative Poisson's ratio materials in engineering has opened new possibilities in materials science, acoustics, and civil engineering. Isotropic elastic foam with a negative Poisson's ratio of -0.7 has been produced which expands laterally when stretched, in contrast to ordinary materials. In this work, a new arrangement of seismic isolation foundation containing a unit cell of concrete - anti rubber and concrete/steel layers is proposed. The novelty lies in application of anti-rubber material as one of the three different layers periodically placed to form a periodic foundation. The auxetic material inclusion in this new arrangement broaden the no pass band of the periodic foundation compared to the earlier investigations. To demonstrate the effectiveness of this metamaterial foundation, an axially loaded column placed under three different foundations are numerically investigated. It is observed that the response of the metamaterial foundation with auxetic inclusion attenuated the elastics waves greatly compared to the foundations with rubber and traditional foundations. The results of the study could be used in developing new foundation materials for vibration attenuation for seismic waves which may cause destruction to engineering structures.Akintoye Olumide OyeladeNdubuisi Okpa ObajiChidi Victor AgbaezeElsevierarticlePeriodic foundationBand of frequency gapMetamaterialNegative Poisson's ratioMechanics of engineering. Applied mechanicsTA349-359TechnologyTENForces in Mechanics, Vol 4, Iss , Pp 100035- (2021) |
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Periodic foundation Band of frequency gap Metamaterial Negative Poisson's ratio Mechanics of engineering. Applied mechanics TA349-359 Technology T |
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Periodic foundation Band of frequency gap Metamaterial Negative Poisson's ratio Mechanics of engineering. Applied mechanics TA349-359 Technology T Akintoye Olumide Oyelade Ndubuisi Okpa Obaji Chidi Victor Agbaeze Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio |
| description |
The introduction of negative Poisson's ratio materials in engineering has opened new possibilities in materials science, acoustics, and civil engineering. Isotropic elastic foam with a negative Poisson's ratio of -0.7 has been produced which expands laterally when stretched, in contrast to ordinary materials. In this work, a new arrangement of seismic isolation foundation containing a unit cell of concrete - anti rubber and concrete/steel layers is proposed. The novelty lies in application of anti-rubber material as one of the three different layers periodically placed to form a periodic foundation. The auxetic material inclusion in this new arrangement broaden the no pass band of the periodic foundation compared to the earlier investigations. To demonstrate the effectiveness of this metamaterial foundation, an axially loaded column placed under three different foundations are numerically investigated. It is observed that the response of the metamaterial foundation with auxetic inclusion attenuated the elastics waves greatly compared to the foundations with rubber and traditional foundations. The results of the study could be used in developing new foundation materials for vibration attenuation for seismic waves which may cause destruction to engineering structures. |
| format |
article |
| author |
Akintoye Olumide Oyelade Ndubuisi Okpa Obaji Chidi Victor Agbaeze |
| author_facet |
Akintoye Olumide Oyelade Ndubuisi Okpa Obaji Chidi Victor Agbaeze |
| author_sort |
Akintoye Olumide Oyelade |
| title |
Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio |
| title_short |
Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio |
| title_full |
Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio |
| title_fullStr |
Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio |
| title_full_unstemmed |
Longitudinal and shear waves propagation in a periodic foundation with negative Poisson's ratio |
| title_sort |
longitudinal and shear waves propagation in a periodic foundation with negative poisson's ratio |
| publisher |
Elsevier |
| publishDate |
2021 |
| url |
https://doaj.org/article/2e3a5d1b18ae4ad68b527515d79d3657 |
| work_keys_str_mv |
AT akintoyeolumideoyelade longitudinalandshearwavespropagationinaperiodicfoundationwithnegativepoissonsratio AT ndubuisiokpaobaji longitudinalandshearwavespropagationinaperiodicfoundationwithnegativepoissonsratio AT chidivictoragbaeze longitudinalandshearwavespropagationinaperiodicfoundationwithnegativepoissonsratio |
| _version_ |
1718424964992860160 |