Predicting the response of locally resonant concrete structure under blast load
Ternary locally resonant metamaterial (LRM) is a manmade material consisting of rigorously designed heavy inclusions with coated soft layer. Such design enables the LRM to possess good wave-filtering characteristics that differ from the matrix materials. Researches of application of this new materia...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER SCI LTD
2020
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/91544 |
| _version_ | 1848765543607173120 |
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| author | Jin, H. Hao, Hong Hao, Yifei Chen, Wensu |
| author_facet | Jin, H. Hao, Hong Hao, Yifei Chen, Wensu |
| author_sort | Jin, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Ternary locally resonant metamaterial (LRM) is a manmade material consisting of rigorously designed heavy inclusions with coated soft layer. Such design enables the LRM to possess good wave-filtering characteristics that differ from the matrix materials. Researches of application of this new material for seismic isolation and sound insulation in civil engineering have been reported. In recent decades, there has been an increasing demand to protect civil engineering structures against the effects of blast loading. When blast wave acts on a concrete structure, complex stress waves are generated and propagate in the structure. The wave-filtering characteristics of LRM have brought inspiration to investigate its potential application to reduce the stress wave propagation and hence the damage to cementitious material and enhance the performance of structures under blast wave. By embedding heavy inclusions with soft coating layer into mortar matrix, the product can be named as ternary locally resonant concrete (ternary LRC). Previous studies of the performances of ternary LRC structures are mainly limited to finite element (FE) modeling of elastic wave propagation. The study of the performance of ternary LRC structure subjected to blast loading and the influence of blast loading-induced damage to LRC structure on stress wave propagation is very limited. This paper carries out analytical derivation and numerical modelling to study the mechanism and performance of ternary LRC structure under blast loading. The strain rate effect and material damage of the mortar matrix are considered in numerical simulation. The influence of different material inclusions (natural aggregates and lead), different elastic modulus and thickness of the soft coating on the response of ternary LRC structure are studied. The results show that the ternary LRC can effectively reduce the damage of ternary LRC structure subjected to blast loading. |
| first_indexed | 2025-11-14T11:36:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-91544 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:36:55Z |
| publishDate | 2020 |
| publisher | ELSEVIER SCI LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-915442023-05-16T08:07:25Z Predicting the response of locally resonant concrete structure under blast load Jin, H. Hao, Hong Hao, Yifei Chen, Wensu Science & Technology Technology Construction & Building Technology Engineering, Civil Materials Science, Multidisciplinary Engineering Materials Science Ternary locally resonant concrete Blast loading Analytical prediction Numerical simulation CRYSTALS BEHAVIOR SIZE Ternary locally resonant metamaterial (LRM) is a manmade material consisting of rigorously designed heavy inclusions with coated soft layer. Such design enables the LRM to possess good wave-filtering characteristics that differ from the matrix materials. Researches of application of this new material for seismic isolation and sound insulation in civil engineering have been reported. In recent decades, there has been an increasing demand to protect civil engineering structures against the effects of blast loading. When blast wave acts on a concrete structure, complex stress waves are generated and propagate in the structure. The wave-filtering characteristics of LRM have brought inspiration to investigate its potential application to reduce the stress wave propagation and hence the damage to cementitious material and enhance the performance of structures under blast wave. By embedding heavy inclusions with soft coating layer into mortar matrix, the product can be named as ternary locally resonant concrete (ternary LRC). Previous studies of the performances of ternary LRC structures are mainly limited to finite element (FE) modeling of elastic wave propagation. The study of the performance of ternary LRC structure subjected to blast loading and the influence of blast loading-induced damage to LRC structure on stress wave propagation is very limited. This paper carries out analytical derivation and numerical modelling to study the mechanism and performance of ternary LRC structure under blast loading. The strain rate effect and material damage of the mortar matrix are considered in numerical simulation. The influence of different material inclusions (natural aggregates and lead), different elastic modulus and thickness of the soft coating on the response of ternary LRC structure are studied. The results show that the ternary LRC can effectively reduce the damage of ternary LRC structure subjected to blast loading. 2020 Journal Article http://hdl.handle.net/20.500.11937/91544 10.1016/j.conbuildmat.2020.118920 English http://purl.org/au-research/grants/arc/FL180100196 ELSEVIER SCI LTD fulltext |
| spellingShingle | Science & Technology Technology Construction & Building Technology Engineering, Civil Materials Science, Multidisciplinary Engineering Materials Science Ternary locally resonant concrete Blast loading Analytical prediction Numerical simulation CRYSTALS BEHAVIOR SIZE Jin, H. Hao, Hong Hao, Yifei Chen, Wensu Predicting the response of locally resonant concrete structure under blast load |
| title | Predicting the response of locally resonant concrete structure under blast load |
| title_full | Predicting the response of locally resonant concrete structure under blast load |
| title_fullStr | Predicting the response of locally resonant concrete structure under blast load |
| title_full_unstemmed | Predicting the response of locally resonant concrete structure under blast load |
| title_short | Predicting the response of locally resonant concrete structure under blast load |
| title_sort | predicting the response of locally resonant concrete structure under blast load |
| topic | Science & Technology Technology Construction & Building Technology Engineering, Civil Materials Science, Multidisciplinary Engineering Materials Science Ternary locally resonant concrete Blast loading Analytical prediction Numerical simulation CRYSTALS BEHAVIOR SIZE |
| url | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/91544 |