Predicting the response of locally resonant concrete structure under blast load

Jin, Hexin; Hao, Hong; Hao, Yifei; Chen, Wensu

doi:10.1016/j.conbuildmat.2020.118920

Cited by 35 publications

(12 citation statements)

References 36 publications

(43 reference statements)

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“…The assembly of domain containing water, air, TNT and pier is shown in figure. Eulerian domain can be assigned volume fraction to fill the predefined material in the domain (Jin et al, 2020).…”

Section: Figure 3 Shock Wave Parameters For Spherical Tnt Explosion Imentioning

confidence: 99%

Structural Response Of A Slotted Bridge Pier Under Blast Loading Using Finite Element Analysis

R.Patel¹

2021

TURCOMAT

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Bridge pier is a crucial part for the transportation in marine structures. Scouring is a major cause for the failure of the pier. slot among the other countermeasures increases the efficiency of scour reduction and minimizes the failure due to scour.as we provide the slot; the strength of the pier reduces compared to the conventional pier. change in reinforcement pattern in slotted bridge pier changes the behavior of the pier under similar loading conditions. blast occurrence has increased in recent times and rehabilitation of a structure and improvement of strength against explosion is necessary in structure. this paper studies the behavior of slotted bridge pier under blast loading and compares theoretical and analytical aspects for the same. Design criteria for blast load according to NCHRP 12-72 are followed to carry out theoretical load response of the pier under blast loading. Analytically the behavior of pier is checked using coupled eulerian lagrangian approach using ABAQUS software. a detailed eulerian domain and slotted pier with reinforcement is assembled in ABAQUS to analyze the behavior of pier under explosion using TNT of 100kg at a scaled distance of 4ft for the period of 0.02seconds. this design gave better result in terms of mitigating effects of blast on slotted bridge pier.

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Section: Figure 3 Shock Wave Parameters For Spherical Tnt Explosion Imentioning

confidence: 99%

Structural Response Of A Slotted Bridge Pier Under Blast Loading Using Finite Element Analysis

R.Patel¹

2021

TURCOMAT

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“…The attribute is the bandgap characteristic [8][9][10][11][12][13], which can be utilized with elastic metamaterials to control the elastic waves. In recent years, the elastic metamaterial has attracted the attention of researchers, particularly after the proposal of elastic metamaterial based on local resonance [1,5,[14][15][16][17][18]. More and more elastic metamaterials are designed for multiple application areas.…”

Section: Introductionmentioning

confidence: 99%

A vibration isolation gasket based on elastic metamaterial for low-frequency waves

Zeng,

Zhang,

Zuo

et al. 2024

Phys. Scr.

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In recent years, elastic metamaterials have become extremely fascinating to many researchers due to the bandgap characteristics. This study develops, a basic elastic metamaterial-based vibration isolation gasket that is capable of isolating low-frequency elastic waves. The elastic metamaterial based on local resonance has been numerically and experimentally investigated and discussed. The result shows that a wide low-frequency bandgap from 430 Hz to 1490 Hz appears for elastic waves. Although the elastic metamaterial is only made up of three unit cells, modeling and experimental findings demonstrate a significant attenuation impact. This work not only provides a new option to design elastic metamaterial for controlling elastic waves, but also provides a new design idea for vibration isolation gasket.

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“…Gao et al (2018) numerically studied wave attenuation performance of metaconcrete slab under two-dimensional plane wave and found that the metaconcrete slab could effectively weaken the mechanical wave and better protect the concrete mortar. Jin et al (2020Jin et al ( ,2021) conducted analytical derivation and numerical simulation to study the dynamic respones of metaconcrete structure under explosion loading and the impact of elastic modulus and thickness of coating, aggregates kinds on the anti-explosion behavior of metaconcrete was investigated. It was found that the engineered aggregates can mitigate the damaged of metaconcrete structural against blast loading.…”

Section: Introductionmentioning

confidence: 99%

Design and evaluation of dual-resonant aggregates metaconcrete

Zhang

Zhao

et al. 2023

Lat. Am. j. solids struct.

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Metaconcrete is a newly manmade concrete where traditional aggregates are partially replaced by resonant aggregates. The metaconcrete slab can attenuate vibration in the specific frequency bandgap which are created by the locally resonant aggregates. To enhance the attenuation performance of metaconcrete slab, a dual-resonant aggregate was designed and embedded into the metaconcrete slab. Firstly, a mass-in-(massin-mass) analytical model is used to predict the bandgap characteristics of dual-resonant aggregates metaconcrete. Then, eigenfrequency investigation is conducted to acquire the dispersion curve of the periodic unit cell by using finite element software COMSOL Multiphysics. The effects of the mass and stiffness ratios parameters on the characteristics of bandgap are studied. The frequency responses of the dual-resonant aggregates metaconcrete reveal that the dual-resonant aggregates metaconcrete slab can acquire vibration wave mitigation in two designed frequency bands. The results offer a base for the optimal design of the metaconcrete slab for structural protections resist vibration loading.

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Predicting the response of locally resonant concrete structure under blast load

Cited by 35 publications

References 36 publications

Structural Response Of A Slotted Bridge Pier Under Blast Loading Using Finite Element Analysis

Structural Response Of A Slotted Bridge Pier Under Blast Loading Using Finite Element Analysis

A vibration isolation gasket based on elastic metamaterial for low-frequency waves

Design and evaluation of dual-resonant aggregates metaconcrete

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