(Created page with "==1 Title, abstract and keywords<!-- Your document should start with a concise and informative title. Titles are often used in information-retrieval systems. Avoid abbreviatio...")
 
Line 1: Line 1:
−
==1 Title, abstract and keywords<!-- Your document should start with a concise and informative title. Titles are often used in information-retrieval systems. Avoid abbreviations and formulae where possible. Capitalize the first word of the title.
+
==Abstract==
 +
This talk addresses the application of SPH to problems of hydro-fracturing and fluid-structure
 +
interaction. Simulating a hydraulic-fracture propagating in a rock with in-situ joint sets is particularly
 +
challenging. Traditional continuum modeling techniques have the advantage of using classical non-
 +
linear material models, however they often fail to accurately capture the complexity of the geometry
 +
and path of multiple intersecting fractures. In particular, mesh dependence of the fracture path,
 +
closing of an opened fracture and shear, present difficulties using these techniques. The use of the
 +
smoothed particle hydrodynamics (SPH) method for these problems is relatively recent. Mesh free
 +
methods, such as SPH, have the potential to overcome the previously mentioned difficulties of mesh
 +
based methods. Simulation of the initiation and propagation of pressure-driven fractures in brittle
 +
rocks is presented in this study. By exploiting techniques commonly used in traditional continuum
 +
methods, we have developed an elasto-plastic SPH model, which is based on the Drucker-Prager
 +
yield criterion, and the Grady-Kipp damage model. The model is validated against Brazil test data.
 +
Results are also presented the Brazil test, uni-axial compressive fracture as well as initial results for
 +
intersection of dynamic fractures with intersecting joints.
  
−
Provide a maximum of 6 keywords, and avoiding general and plural terms and multiple concepts (avoid, for example, 'and', 'of'). Be sparing with abbreviations: only abbreviations firmly established in the field should be used. These keywords will be used for indexing purposes.
+
== Recording of the presentation ==
 +
{| style="font-size:120%; color: #222222; border: 1px solid darkgray; background: #f3f3f3; table-layout: fixed; width:100%;"
 +
|-
 +
|{{#evt:service=youtube|id=https://youtu.be/mSQGs8EqOb8|alignment=center}}
 +
|- style="text-align: center;"
 +
| Location: Technical University of Catalonia (UPC), Vertex Building.  
 +
|- style="text-align: center;"
 +
| Date: 28 - 30 September 2015, Barcelona, Spain.
 +
|}
  
−
An abstract is required for every document; it should succinctly summarize the reason for the work, the main findings, and the conclusions of the study. Abstract is often presented separately from the article, so it must be able to stand alone. For this reason, references and hyperlinks should be avoided. If references are essential, then cite the author(s) and year(s). Also, non-standard or uncommon abbreviations should be avoided, but if essential they must be defined at their first mention in the abstract itself. -->==
+
== General Information ==
 +
* Location: Technical University of Catalonia (UPC), Barcelona, Spain.
 +
* Date: 28 - 30 September 2015
 +
* Secretariat: [//www.cimne.com/ International Center for Numerical Methods in Engineering (CIMNE)].
  
 +
== External Links ==
 +
* [//congress.cimne.com/particles2015/frontal/default.asp Particles 2015] Official Website of the Conference.
 +
* [//www.cimnemultimediachannel.com/ CIMNE Multimedia Channel]
  
 +
==References==
  
 +
[1]  A.A. Savitski and E. Detournay,  “Propagation of a penny-shaped  fluid-driven fracture  in an
 +
impermeable rock: asymptotic solutions”,  International Journal of  Solids and Structures, 39
 +
6311–6337(2002).
  
−
==2 The main text<!-- You can enter and format the text of this document by selecting the ‘Edit’ option in the menu at the top of this frame or next to the title of every section of the document. This will give access to the visual editor. Alternatively, you can edit the source of this document (Wiki markup format) by selecting the ‘Edit source’ option.
+
[2]  D.  Deb  and R. Pramanik, “Failure  Process  of Brittle  Rock  Using  Smoothed  Particle
 +
Hydrodynamics”, J. Eng. Mech. 2013.139:1551-1565 (2013).
  
−
Most of the documents in Scipedia are written in English (write your manuscript in American or British English, but not a mixture of these). Anyhow, specific publications in other languages can be published in Scipedia. In any case, the documents published in other languages must have an abstract written in English.
+
[3]  R. Pramanik and D. Deb, “SPH procedures for modeling multiple intersecting discontinuities in  
 +
geomaterial”,  Int. J. Numer. Anal. Meth. Geomech. DOI: 10.1002/nag.2311 (2014).
  
−
 
+
[4]  R. Pramanik and D. Deb, “Implementation of Smoothed Particle Hydrodynamics for Detonation
−
2.1 Subsections
+
of  Explosive with  Application to Rock  Fragmentation”, Rock  Mech  Rock  Eng  DOI
−
 
+
10.1007/s00603-014-0657-y (2014).
−
Divide your article into clearly defined and numbered sections. Subsections should be numbered 1.1, 1.2, etc. and then 1.1.1, 1.1.2, ... Use this numbering also for internal cross-referencing: do not just refer to 'the text'. Any subsection may be given a brief heading. Capitalize the first word of the headings.
+
−
 
+
−
 
+
−
2.2 General guidelines
+
−
 
+
−
Some general guidelines that should be followed in your manuscripts are:
+
−
 
+
−
*  Avoid hyphenation at the end of a line.
+
−
 
+
−
* Symbols denoting vectors and matrices should be indicated in bold type. Scalar variable names should normally be expressed using italics.
+
−
 
+
−
* Use decimal points (not commas); use a space for thousands (10 000 and above).
+
−
 
+
−
* Follow internationally accepted rules and conventions. In particular use the international system of units (SI). If other quantities are mentioned, give their equivalent in SI.
+
−
 
+
−
 
+
−
2.3 Tables, figures, lists and equations
+
−
 
+
−
Please insert tables as editable text and not as images. Tables should be placed next to the relevant text in the article. Number tables consecutively in accordance with their appearance in the text and place any table notes below the table body. Be sparing in the use of tables and ensure that the data presented in them do not duplicate results described elsewhere in the article.
+
−
 
+
−
Graphics may be inserted directly in the document and positioned as they should appear in the final manuscript.
+
−
 
+
−
Number the figures according to their sequence in the text. Ensure that each illustration has a caption. A caption should comprise a brief title. Keep text in the illustrations themselves to a minimum but explain all symbols and abbreviations used. Try to keep the resolution of the figures to a minimum of 300 dpi. If a finer resolution is required, the figure can be inserted as supplementary material
+
−
 
+
−
For tabular summations that do not deserve to be presented as a table, lists are often used. Lists may be either numbered or bulleted. Below you see examples of both.
+
−
 
+
−
1. The first entry in this list
+
−
 
+
−
2. The second entry
+
−
 
+
−
2.1. A subentry
+
−
 
+
−
3. The last entry
+
−
 
+
−
* A bulleted list item
+
−
 
+
−
* Another one
+
−
 
+
−
You may choose to number equations for easy referencing. In that case they must be numbered consecutively with Arabic numerals in parentheses on the right hand side of the page. Below is an example of formulae that should be referenced as eq. (1].
+
−
 
+
−
 
+
−
2.4 Supplementary material
+
−
 
+
−
Supplementary material can be inserted to support and enhance your article. This includes video material, animation sequences, background datasets, computational models, sound clips and more. In order to ensure that your material is directly usable, please provide the files with a preferred maximum size of 50 MB. Please supply a concise and descriptive caption for each file. -->==
+
−
 
+
−
 
+
−
 
+
−
 
+
−
==3 Bibliography<!--
+
−
Citations in text will follow a citation-sequence system (i.e. sources are numbered by order of reference so that the first reference cited in the document is [1], the second [2], and so on) with the number of the reference in square brackets. Once a source has been cited, the same number is used in all subsequent references. If the numbers are not in a continuous sequence, use commas (with no spaces) between numbers. If you have more than two numbers in a continuous sequence, use the first and last number of the sequence joined by a hyphen
+
−
 
+
−
You should ensure that all references are cited in the text and that the reference list. References should preferably refer to documents published in Scipedia. Unpublished results should not be included in the reference list, but can be mentioned in the text. The reference data must be updated once publication is ready. Complete bibliographic information for all cited references must be given following the standards in the field (IEEE and ISO 690 standards are recommended). If possible, a hyperlink to the referenced publication should be given. See examples for Scipedia’s articles [1], other publication articles [2], books [3], book chapter [4], conference proceedings [5], and online documents [6], shown in references section below. -->==
+
−
 
+
−
 
+
−
 
+
−
 
+
−
==4 Acknowledgments<!-- Acknowledgments should be inserted at the end of the document, before the references section. -->==
+
−
 
+
−
 
+
−
 
+
−
 
+
−
==5 References<!--[1] Author, A. and Author, B. (Year) Title of the article. Title of the Publication. Article code. Available: http://www.scipedia.com/ucode.
+
−
 
+
−
[2] Author, A. and Author, B. (Year) Title of the article. Title of the Publication. Volume number, first page-last page.
+
−
 
+
−
[3] Author, C. (Year). Title of work: Subtitle (edition.). Volume(s). Place of publication: Publisher.
+
−
 
+
−
[4] Author of Part, D. (Year). Title of chapter or part. In A. Editor & B. Editor (Eds.), Title: Subtitle of book (edition, inclusive page numbers). Place of publication: Publisher.
+
−
 
+
−
[5] Author, E. (Year, Month date). Title of the article. In A. Editor, B. Editor, and C. Editor. Title of published proceedings. Paper presented at title of conference, Volume number, first page-last page. Place of publication.
+
−
 
+
−
[6] Institution or author. Title of the document. Year. [Online] (Date consulted: day, month and year). Available: http://www.scipedia.com/document.pdf.
+
−
-->==
+

Revision as of 10:11, 22 October 2019

Abstract

This talk addresses the application of SPH to problems of hydro-fracturing and fluid-structure interaction. Simulating a hydraulic-fracture propagating in a rock with in-situ joint sets is particularly challenging. Traditional continuum modeling techniques have the advantage of using classical non- linear material models, however they often fail to accurately capture the complexity of the geometry and path of multiple intersecting fractures. In particular, mesh dependence of the fracture path, closing of an opened fracture and shear, present difficulties using these techniques. The use of the smoothed particle hydrodynamics (SPH) method for these problems is relatively recent. Mesh free methods, such as SPH, have the potential to overcome the previously mentioned difficulties of mesh based methods. Simulation of the initiation and propagation of pressure-driven fractures in brittle rocks is presented in this study. By exploiting techniques commonly used in traditional continuum methods, we have developed an elasto-plastic SPH model, which is based on the Drucker-Prager yield criterion, and the Grady-Kipp damage model. The model is validated against Brazil test data. Results are also presented the Brazil test, uni-axial compressive fracture as well as initial results for intersection of dynamic fractures with intersecting joints.

Recording of the presentation

Location: Technical University of Catalonia (UPC), Vertex Building.
Date: 28 - 30 September 2015, Barcelona, Spain.

General Information

External Links

References

[1] A.A. Savitski and E. Detournay, “Propagation of a penny-shaped fluid-driven fracture in an impermeable rock: asymptotic solutions”, International Journal of Solids and Structures, 39 6311–6337(2002).

[2] D. Deb and R. Pramanik, “Failure Process of Brittle Rock Using Smoothed Particle Hydrodynamics”, J. Eng. Mech. 2013.139:1551-1565 (2013).

[3] R. Pramanik and D. Deb, “SPH procedures for modeling multiple intersecting discontinuities in geomaterial”, Int. J. Numer. Anal. Meth. Geomech. DOI: 10.1002/nag.2311 (2014).

[4] R. Pramanik and D. Deb, “Implementation of Smoothed Particle Hydrodynamics for Detonation of Explosive with Application to Rock Fragmentation”, Rock Mech Rock Eng DOI 10.1007/s00603-014-0657-y (2014).

Back to Top
GET EPUB

Document information

Published on 22/10/19

Licence: CC BY-NC-SA license

Document Score

0

Views 87
Recommendations 0

Share this document

claim authorship

Are you one of the authors of this document?

I am an author