TY - JOUR
T1 - Correction to Growth model for large branched three-dimensional hydraulic crack system in gas or oil shale (Phil. Trans. R. Soc. A (2016) 374 (20150418) 10.1098/rsta.2015.0418)
AU - Chau, Viet T.
AU - Bažant, Zdeněk P.
AU - Su, Yewang
N1 - Publisher Copyright:
© 2019 The Author(s) Published by the Royal Society. All rights reserved.
PY - 2019/9/9
Y1 - 2019/9/9
N2 - Recent reanalysis revealed that the branching indicated by the computer program in this article was, in fact, triggered by a programming glitch which caused an unintended abrupt change of Biot coefficient for transverse water pressure on the crack. This change suddenly increased the pressure on the solid phase and triggered dynamic response. Such a sudden trigger is probably unrealistic and requires correction. The correction nevertheless reveals a useful fact, namely that producing fluid pressure shocks within the cracks would locally stimulate branching. A partly revised model, which is based mostly on the mathematical formulation from this paper leads to crack branching similar to what is seen in the figures of this paper, has been published by Rahimi-Aghdam et al. [1].
AB - Recent reanalysis revealed that the branching indicated by the computer program in this article was, in fact, triggered by a programming glitch which caused an unintended abrupt change of Biot coefficient for transverse water pressure on the crack. This change suddenly increased the pressure on the solid phase and triggered dynamic response. Such a sudden trigger is probably unrealistic and requires correction. The correction nevertheless reveals a useful fact, namely that producing fluid pressure shocks within the cracks would locally stimulate branching. A partly revised model, which is based mostly on the mathematical formulation from this paper leads to crack branching similar to what is seen in the figures of this paper, has been published by Rahimi-Aghdam et al. [1].
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U2 - 10.1098/rsta.2019.0220
DO - 10.1098/rsta.2019.0220
M3 - Comment/debate
C2 - 31329068
AN - SCOPUS:85069940428
VL - 377
JO - Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
JF - Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
SN - 0962-8428
IS - 2153
M1 - 2019220
ER -