Numerical modelling of fracture intensity increase due to interacting blast waves in three-dimensional granitic rocks

This work presents a detailed three-dimensional finite element based model for wave propagation, combined with a postprocessing procedure to determine the fracture intensity caused by blasting. The data generated during this project includes output files of all simulations with detailed fields, geometries and meshes. The model incorporates the Johnson-Holmquist-2 constitutive model, which is designed for brittle materials undergoing high strain rates and high pressures and fracturing, and a tensile failure model. Material heterogeneity is introduced into the model through variation of the material properties at the element level, ensuring jumps in strain. The algorithm for the combined Johnson-Holmquist-2 and tensile failure model is presented and is demonstrated to be energy-conserving, with an open-source MATLABTM implementation of the model. A range of sub-scale numerical experiments are performed to validate the modelling and postprocessing procedures, and a range of materials, explosive waves and geometries are considered to demonstrate the model's predictive capability quantitatively and qualitatively for fracture intensity. Fracture intensities on 2D planes and 3D volumes are presented. The mesh dependence of the method is explored, demonstrating that mesh density changes maintain similar results and improve with increasing mesh quality. Damage patterns in simulations are self-organising, forming thin, planar, fracture-like structures that closely match the observed fractures in the experiments. The presented model is an advancement in realism for continuum modelling of blasts as it enables fully three-dimensional wave interaction, handles damage due to both compression and tension, and relies only on measurable material properties. The uploaded data are the specific simulation outputs for four explosion models occurring on two different rock types, and the specific fracture patterns generated.

Simple

Date (Creation)
2023-02-01
Citation identifier
http://data.bgs.ac.uk/id/dataHolding/13608071
Point of contact
Organisation name Individual name Electronic mail address Role

Imperial College London

Robin N. Thomas

not available

 		Originator

Imperial College London

Dr Adriana Paluszny

not available

 		Originator

Imperial College London

Robert Bird

not available

 		Originator

British Geological Survey

Enquiries

not available

 		Distributor

British Geological Survey

Enquiries

not available

 		Point of contact
Maintenance and update frequency
notApplicable

GEMET - INSPIRE themes, version 1.0

BGS Thesaurus of Geosciences

  • NGDC Deposited Data

  • Fractured rock

  • Heterogeneity

  • Tensile strength

  • Materials tests

  • Tension tests

  • Compression

  • Mathematical models

  • Energy conservation

  • Explosions

  • Finite element analysis

  • Three dimensional models
dataCentre
Keywords

  • NERC_DDC
Access constraints
Other restrictions
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no limitations
Other constraints
The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
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Other restrictions
Other constraints

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints

There are no restrictions on the use that may be made of the dataset, although an appropriate copyright acknowledgement must be made when any part of the dataset is reproduced. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner of any third party data / information contained in the dataset to make the dataset freely available without any use constraints - inclusion of any third party data / information will affect the copyright acknowledgement that needs to be made.
Language
English
Topic category
  • Geoscientific information
Begin date
2021-01
End date
2022-01

Reference System Information

No information provided.
Distribution format
Name Version

txt

3dm

vtk

.m

.uns

.tin
Distributor contact
Organisation name Individual name Electronic mail address Role

British Geological Survey

Enquiries

not available

 		Distributor
OnLine resource
Protocol Linkage Name
https://doi.org/10.5285/6665d60d-a516-4ff1-8e66-89f4a0685007

Digital Object Identifier (DOI)
OnLine resource
Protocol Linkage Name
https://doi.org/10.1016/j.ijrmms.2022.105279

Published Paper
OnLine resource
Protocol Linkage Name
https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item178806

Data
Hierarchy level
Non geographic dataset
Other

non geographic dataset

Conformance result

Date (Publication)
2011
Explanation

See the referenced specification
Pass
No

Conformance result

Date (Publication)
2010-12-08
Explanation

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass
No
Statement

Numerical simulations conducted using the Imperial College Geomechanics Toolkit (ICGT), using novel finite element-based methodologies

Metadata

File identifier
fb545266-dd9f-372f-e053-0937940ad24b XML
Metadata language
English
Hierarchy level
Non geographic dataset
Hierarchy level name

non geographic dataset
Date stamp
2024-09-09
Metadata standard name
UK GEMINI
Metadata standard version

2.3
Metadata author
Organisation name Individual name Electronic mail address Role

British Geological Survey

enquiries@bgs.ac.uk

Point of contact
Dataset URI

http://data.bgs.ac.uk/id/dataHolding/1360807 1

 
 

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