Impact load mitigation of meta-panels with single local resonator
This study investigates the influence of design parameters on the impact mitigation capacity of a new meta-panel that leveraged the coupled mechanisms of plastic deformation and local resonance to absorb energy from impact loading. The main objective is to minimize the force to be transmitted to the...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER SCI LTD
2022
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/91618 |
| _version_ | 1848765559960764416 |
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| author | Vo, N.H. Pham, Thong Hao, H. Bi, Kaiming Chen, Wensu |
| author_facet | Vo, N.H. Pham, Thong Hao, H. Bi, Kaiming Chen, Wensu |
| author_sort | Vo, N.H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigates the influence of design parameters on the impact mitigation capacity of a new meta-panel that leveraged the coupled mechanisms of plastic deformation and local resonance to absorb energy from impact loading. The main objective is to minimize the force to be transmitted to the protected structures through mitigating the stress wave propagation by using local resonators. The meta-panel demonstrates the capability of filtering out the stress wave induced by impact loading with frequencies falling in its bandgaps. A numerical model is built and verified by the analytical solution with a good agreement in terms of the predicted frequency bandgaps. The meta-panel shows a substantial reduction in the mid-span deflection of the facesheets and an increase in the impact energy absorption as compared with the conventional sandwich panels. The peak reaction force of the meta-panel transmitted to the protected structure is also reduced significantly by more than 47% compared to its conventional counterparts. Furthermore, parametric studies are conducted to investigate the effects of the thickness of the hollow-truss bar, core material properties, and impact velocity on the meta-panels impact-resistant behaviour. |
| first_indexed | 2025-11-14T11:37:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-91618 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:11Z |
| publishDate | 2022 |
| publisher | ELSEVIER SCI LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-916182024-06-18T00:06:36Z Impact load mitigation of meta-panels with single local resonator Vo, N.H. Pham, Thong Hao, H. Bi, Kaiming Chen, Wensu Science & Technology Technology Engineering, Civil Engineering Meta-structure Meta-panel Resonator Sacrificial structures Stress wave mitigation Impact-resistance LOW-VELOCITY IMPACT ENERGY-ABSORPTION SANDWICH PERFORMANCE TUBES This study investigates the influence of design parameters on the impact mitigation capacity of a new meta-panel that leveraged the coupled mechanisms of plastic deformation and local resonance to absorb energy from impact loading. The main objective is to minimize the force to be transmitted to the protected structures through mitigating the stress wave propagation by using local resonators. The meta-panel demonstrates the capability of filtering out the stress wave induced by impact loading with frequencies falling in its bandgaps. A numerical model is built and verified by the analytical solution with a good agreement in terms of the predicted frequency bandgaps. The meta-panel shows a substantial reduction in the mid-span deflection of the facesheets and an increase in the impact energy absorption as compared with the conventional sandwich panels. The peak reaction force of the meta-panel transmitted to the protected structure is also reduced significantly by more than 47% compared to its conventional counterparts. Furthermore, parametric studies are conducted to investigate the effects of the thickness of the hollow-truss bar, core material properties, and impact velocity on the meta-panels impact-resistant behaviour. 2022 Journal Article http://hdl.handle.net/20.500.11937/91618 10.1016/j.engstruct.2022.114528 English http://purl.org/au-research/grants/arc/FL180100196 http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER SCI LTD fulltext |
| spellingShingle | Science & Technology Technology Engineering, Civil Engineering Meta-structure Meta-panel Resonator Sacrificial structures Stress wave mitigation Impact-resistance LOW-VELOCITY IMPACT ENERGY-ABSORPTION SANDWICH PERFORMANCE TUBES Vo, N.H. Pham, Thong Hao, H. Bi, Kaiming Chen, Wensu Impact load mitigation of meta-panels with single local resonator |
| title | Impact load mitigation of meta-panels with single local resonator |
| title_full | Impact load mitigation of meta-panels with single local resonator |
| title_fullStr | Impact load mitigation of meta-panels with single local resonator |
| title_full_unstemmed | Impact load mitigation of meta-panels with single local resonator |
| title_short | Impact load mitigation of meta-panels with single local resonator |
| title_sort | impact load mitigation of meta-panels with single local resonator |
| topic | Science & Technology Technology Engineering, Civil Engineering Meta-structure Meta-panel Resonator Sacrificial structures Stress wave mitigation Impact-resistance LOW-VELOCITY IMPACT ENERGY-ABSORPTION SANDWICH PERFORMANCE TUBES |
| url | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/91618 |