Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijrmms.2006.11.004
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dc.titleNumerical simulation of tensile damage and blast crater in brittle rock due to underground explosion
dc.contributor.authorWang, Z.-L.
dc.contributor.authorLi, Y.-C.
dc.contributor.authorShen, R.F.
dc.date.accessioned2014-06-17T08:22:02Z
dc.date.available2014-06-17T08:22:02Z
dc.date.issued2007-07
dc.identifier.citationWang, Z.-L., Li, Y.-C., Shen, R.F. (2007-07). Numerical simulation of tensile damage and blast crater in brittle rock due to underground explosion. International Journal of Rock Mechanics and Mining Sciences 44 (5) : 730-738. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijrmms.2006.11.004
dc.identifier.issn13651609
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/65908
dc.description.abstractThe prediction of blast crater in brittle rock due to an underground explosion has gained importance in recent years due to the great number of accidental events that affected engineering safety. This paper uses the Taylor-Chen-Kuszmaul (TCK) continuum damage model to analyze dynamic fracture behavior of rock in tension due to blast loading. The TCK damage model, together with an erosion algorithm, was implemented into the explicit FE code, LS-DYNA, as a constitutive augmentation. The damage pattern around the blasthole and the formation of blast crater near a free surface were subsequently simulated using the developed numerical tool. It is shown that the free surface is vitally responsible for the blast crater. Furthermore, the size and shape of the blast craters can be reasonably predicted if the erosion criterion of critical tensile damage is well calibrated. The effects of common charge modes on blast craters were also investigated numerically, and the mechanisms of the coupled, air-decoupled and water-decoupled charge mode are compared and presented. © 2006 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ijrmms.2006.11.004
dc.sourceScopus
dc.subjectBlast crater
dc.subjectCharge mode
dc.subjectErosion algorithm
dc.subjectNumerical simulation
dc.subjectTensile damage
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.description.doi10.1016/j.ijrmms.2006.11.004
dc.description.sourcetitleInternational Journal of Rock Mechanics and Mining Sciences
dc.description.volume44
dc.description.issue5
dc.description.page730-738
dc.description.codenIRMGB
dc.identifier.isiut000245872400006
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