Measurement of Explosively Induced Movement and Spalling of Granite Model Blocks
2007 (English)In: International Journal of Impact Engineering, ISSN 0734-743X, Vol. 34, no 12, 1936-1952 p.Article in journal (Refereed) Published
Charges of high explosives have been buried (countersunk) in granite blocks and detonated. This article describes the measurement and evaluation of the shock wave propagating through the granite blocks. It also demonstrates how the shock wave data can be used to improve computer simulations of granite's behaviour. The overall goal has been to investigate how granite withstands penetrating weapons, that first penetrate the ground and then detonates within the created cavity. Several variables have been investigated. It is shown that water content of the granite can increase the shock wave amplitude with up to a factor 2, and a crack in the granite often attenuates the shock wave amplitude with a factor 4 or more. Also, the granite block thickness needed to prevent internal crack formation has been investigated.
Place, publisher, year, edition, pages
2007. Vol. 34, no 12, 1936-1952 p.
granite, spalling, shock wave, crack, water
Production Engineering, Human Work Science and Ergonomics
IdentifiersURN: urn:nbn:se:kth:diva-8966DOI: 10.1016/j.ijimpeng.2006.11.006ISI: 000248761500003ScopusID: 2-s2.0-34347212498OAI: oai:DiVA.org:kth-8966DiVA: diva2:14475
QC 20100922. Uppdaterad från Submitted till Published (20100922).2005-12-272005-12-272010-12-22Bibliographically approved