NERC Data Catalogue Service
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.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2023-02-01
Imperial College London
-
Robin N. Thomas
(
Faculty of Engineering, Department of Earth Science & Engineering
)
, South Kensington Campus
,
London
,
SW7 2AZ
,
Imperial College London
-
Dr Adriana Paluszny
(
Faculty of Engineering, Department of Earth Science & Engineering
)
South Kensington Campus
,
London
,
SW7 2AZ
,
- Maintenance and update frequency
- notApplicable
- GEMET - INSPIRE themes
- BGS Thesaurus of Geosciences
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- Heterogeneity
- Fractured rock
- Tensile strength
- Tension tests
- Materials tests
- Mathematical models
- Compression
- Explosions
- Energy conservation
- Three dimensional models
- Finite element analysis
- Keywords
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- NERC_DDC
- Limitations on Public Access
- otherRestrictions
- Other constraints
- 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.
- Use constraints
- otherRestrictions
- 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.
- Topic category
-
- Geoscientific information
- Begin date
- 2021-01
- End date
- 2022-01
Spatial Reference System
No information provided.
Distribution Information
- Data format
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txt
()
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3dm
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vtk
()
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.m
()
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.uns
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.tin
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txt
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- Resource Locator
- Digital Object Identifier (DOI)
- Resource Locator
- Published Paper
- Resource Locator
- Data
- Resource Locator
- Digital Object Identifier (DOI)
- Resource Locator
- Published Paper
- Resource Locator
- Data
- Quality Scope
- nonGeographicDataset
- Other
- non geographic dataset
Report
- Dataset Reference Date ()
- 2011
- Explanation
- See the referenced specification
- Degree
Report
- Dataset Reference Date ()
- 2010-12-08
- Explanation
- See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Degree
- 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 (en)
- Resource type
- nonGeographicDataset
- Hierarchy level name
- non geographic dataset
- Metadata Date
- 2023-11-28
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
British Geological Survey
Environmental Science Centre,Keyworth
,
NOTTINGHAM
,
NOTTINGHAMSHIRE
,
NG12 5GG
,
United Kingdom
+44 115 936 3100
