Dynamic response analysis of mortar block under blast loading using digital image correlation

Tei Saburi, Yoshiaki Takahashi, Shiro Kubota, Yuji Ogata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The dynamic strain distribution behavior of a mortar block blasting was experimentally investigated. A small-scale blasting experiment using a mortar block with well-defined property was conducted and the dynamic strain distribution on the mortal block surface was analyzed using a Digital Image Correlation (DIC) method to establish the effective method for investigating the relationship between blast design and fracture mechanism. The block was blasted by simultaneous detonation of Composition C4 explosive charges with an electric detonator in two boreholes. The behavior of the block surface was observed by two high-speed cameras for three-dimensional DIC analysis and it was also measured by a strain-gauge for comparison. The three-dimensional displacements of the free surface of the block were obtained and dynamic strain distributions were computed. A point strain profile extracted from the analyzed strain distribution data was compared with a directly observed strain profile by the strain gauge.

Original languageEnglish
Title of host publicationExplosion, Shock Wave and High-Strain-Rate Phenomena V - 5th ESHP
EditorsPeng Wan Chen, Qiang Zhou
PublisherTrans Tech Publications Ltd
Pages161-166
Number of pages6
ISBN (Print)9783035710786
DOIs
Publication statusPublished - 2017
Event5th International Symposium on Explosion, Shock Wave and High-Strain-Rate Phenomena, ESHP 2016 - Beijing, China
Duration: Sep 25 2016Sep 28 2016

Publication series

NameMaterials Science Forum
Volume910 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference5th International Symposium on Explosion, Shock Wave and High-Strain-Rate Phenomena, ESHP 2016
Country/TerritoryChina
CityBeijing
Period9/25/169/28/16

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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