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作者:

Chen, Junyi (Chen, Junyi.) | Wang, Yonghui (Wang, Yonghui.) | Zhou, Hongyuan (Zhou, Hongyuan.) | Xu, Huanan (Xu, Huanan.)

收录:

EI Scopus SCIE

摘要:

A novel steel-concrete-steel-gradient aluminum foam energy absorbing panel (SCSGF-EAP) has been proposed for improving the impact resistance of existing structures. The impact resistant performances of the SCSGF-EAP were evaluated through the drop weight impact tests and numerical simulations. The varying thickness of gradient aluminum foam and concrete core was considered in the drop weight impact tests. All the specimens presented a consistent failure mode, which included local indentation and global flexure of SCS panel and crushing of gradient aluminum foam. The Finite Element (FE) model was developed through adopting LS-DYNA for studying the impact resistance of SCSGF-EAP, and the comparisons exhibited that numerical results agreed well with experimental data. The internal energy of different components of specimen was determined by numerical model, and the gradient aluminum foam absorbed the majority of the impact energy. Finally, parametric studies were adopted to determine influences of the initial momentum and kinetic energy of impactor, as well as the density of gradient aluminum foam and impact location on the impact response of SCSGF-EAP.

关键词:

Finite element analysis Energy absorbing panel Drop weight impact test Dynamic response Gradient aluminum foam

作者机构:

  • [ 1 ] [Chen, Junyi]Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China
  • [ 2 ] [Wang, Yonghui]Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China
  • [ 3 ] [Chen, Junyi]Harbin Inst Technol, Key Lab Smart Prevent Mitigat Civil Engn Disasters, Minist Ind & Informat Technol, Harbin 150090, Peoples R China
  • [ 4 ] [Wang, Yonghui]Harbin Inst Technol, Key Lab Smart Prevent Mitigat Civil Engn Disasters, Minist Ind & Informat Technol, Harbin 150090, Peoples R China
  • [ 5 ] [Zhou, Hongyuan]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Xu, Huanan]Longyan Univ, Sch Resource Engn, Longyan 364012, Peoples R China

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来源 :

THIN-WALLED STRUCTURES

ISSN: 0263-8231

年份: 2024

卷: 205

6 . 4 0 0

JCR@2022

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SCOPUS被引频次: 2

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