Effects of Resonant Aggregate Characteristics on Blast Mitigation and Vibration Suppression Performance of Metaconcrete

doi:10.16552/j.cnki.issn1001-1625.2025.1193

Abstract

Abstract:

To investigate the vibration suppression performance of metaconcrete under blast loading， a three-dimensional finite element model of metaconcrete measuring 100 cm×100 cm×30 cm was established based on the theory of locally resonant metamaterials. The Arbitrary Lagrangian-Eulerian （ALE） method was employed to simulate TNT blast loading， and the effects of material properties， geometric dimensions， and non-uniform distribution of resonant aggregates on the vibration suppression performance of metaconcrete were systematically analyzed. The results show that metaconcrete can effectively attenuate blast-induced stress waves through local resonance. Within the parameter ranges studied， the elastic modulus of the coating has the most significant influence on the peak vibration velocity， while none of the parameters show a statistically significant effect on the peak stress. The bottom-enriched distribution of resonant aggregates does not degrade the overall vibration suppression performance； instead， a periodic arrangement exhibits superior overall performance due to the combined effects of local resonance and Bragg scattering. A four-layer resonant aggregate structure with optimized parameters achieves 93.5% attenuation rate of impact energy. This study provides theoretical references for material selection， parameter design， and process control in metaconcrete.

Key words: metaconcrete, resonant aggregate, blast loading, aggregate distribution, dynamic response

CLC Number:

TU528.41

FU Youyun, CHEN Zhihua, HE Feng, LIU Gang. Effects of Resonant Aggregate Characteristics on Blast Mitigation and Vibration Suppression Performance of Metaconcrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(7): 2312-2323.

Figures/Tables 23

References 26

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Material	Density/（kg·m^-3）	Elastic modulus/MPa	Poisson ratio
Lead	11 400	1.6×10⁴	0.44
Polyurethane	900	1.47×10²	0.42

Material	Density/（kg·m^-3）	Elastic modulus/MPa	Poisson ratio
Lead	11 400	1.6×10⁴	0.44
Polyurethane	900	1.47×10²	0.42

Parameter	Level 1	Level 2	Level 3
Coating thickness/mm	1.0	2.0	3.0
Coating elastic modulus/MPa	14.7	147	1 470
Heavy core radius/mm	9	10	11
Heavy core density/（g·cm^-3）	2.7	7.9	11.4

Parameter	Level 1	Level 2	Level 3
Coating thickness/mm	1.0	2.0	3.0
Coating elastic modulus/MPa	14.7	147	1 470
Heavy core radius/mm	9	10	11
Heavy core density/（g·cm^-3）	2.7	7.9	11.4

Test	Coatingthickness/mm	Coating elastic modulus/MPa	Heavy core radius/mm	Heavy core density/（g·cm^-3）	Peak compressive stress/MPa	Peak tensile stress/MPa	Peak velocity/（m·s^-1）
1	1.0	14.7	9	2.7	6.86	2.70	0.94
2	1.0	147	10	7.8	5.83	2.20	0.34
3	1.0	1 470	11	11.4	6.02	2.78	0.77
4	2.0	14.7	10	11.4	6.37	2.86	0.96
5	2.0	147	11	2.7	6.16	3.01	0.38
6	2.0	1 470	9	7.8	7.45	3.12	0.91
7	3.0	14.7	11	7.8	6.56	3.48	0.41
8	3.0	147	9	11.4	6.88	2.69	0.53
9	3.0	1 470	10	2.7	7.89	3.06	0.97