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Published in: International Journal of Steel Structures 3/2023

16-02-2023

Effect of Supersonic Shock Wave Loading on Thin Metallic Sheets: Experimental and Numerical Studies

Authors: Khushi Ram, Kartikeya Kartikeya, Hemant Chouhan, Sanjay Prasad, Puneet Mahajan, Naresh Bhatnagar

Published in: International Journal of Steel Structures | Issue 3/2023

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Abstract

Defence structures are under high threat of blast loading in recent years due to rising terrorist activities. Protection of defence structures against blast conditions has received a huge interest in the past few years. Blast mitigation requires to study the behavior of various metals under supersonic shock loading. An experimental study was carried out using in-house developed shock tube apparatus to understand effect of shock loading on mild steel and aluminum sheets. A limitation of current study is 1-D loading occurring in shock tube which is unlike 3-D loading occurring in a blast event. Experiments reveal that the properties of thin sheets in through-thickness direction plays an essential role in the shock transfer, which affects considerably the failure and final deformed shape of the sheet. The study showed that metallic thin sheets absorbed shock energy via plastic deformation and failed via a tensile failure mode. Results from this study indicate that aluminum sheets and mild steel sheets can offer shock-resistant properties and mitigate more energy via absorption and plastic deformation. Aluminum and mild steel sheets can therefore be used as a face and back sheet for the development of any sandwich composites.

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Metadata
Title
Effect of Supersonic Shock Wave Loading on Thin Metallic Sheets: Experimental and Numerical Studies
Authors
Khushi Ram
Kartikeya Kartikeya
Hemant Chouhan
Sanjay Prasad
Puneet Mahajan
Naresh Bhatnagar
Publication date
16-02-2023
Publisher
Korean Society of Steel Construction
Published in
International Journal of Steel Structures / Issue 3/2023
Print ISSN: 1598-2351
Electronic ISSN: 2093-6311
DOI
https://doi.org/10.1007/s13296-023-00719-1

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