Time-dependent brittle creep as a mechanism for time-delayed wellbore failure

2014 ◽  
Vol 70 ◽  
pp. 400-406 ◽  
Author(s):  
M. Schoenball ◽  
D.P. Sahara ◽  
T. Kohl
Keyword(s):  
Time Dependent ◽  
Brittle Creep ◽  
Wellbore Failure

scholarly journals Time-dependent brittle creep in Darley Dale sandstone

2009 ◽  
Vol 114 (B7) ◽  
Author(s):  
M. J. Heap ◽  
P. Baud ◽  
P. G. Meredith ◽  
A. F. Bell ◽  
I. G. Main
Keyword(s):  
Time Dependent ◽  
Brittle Creep

A Micromechanical Method to Predict Macroscopic Behavior of Brittle Creep Failure in Rock

2016 ◽  
Vol 08 (08) ◽  
pp. 1650089 ◽  
Author(s):  
Xiaozhao Li ◽  
Zhushan Shao
Keyword(s):  
Model Comparison ◽  
Time Dependent ◽  
Similar Process ◽  
Model Parameters ◽  
Suggested Model ◽  
Wing Crack ◽  
Creep Failure ◽  
Brittle Creep ◽  
Deep Underground ◽  
Definition Of

Brittle creep in rock has great significance for the prediction of important geohazards and stability of deep underground excavations. A major challenge in this area is to link the time-dependent cracking with macroscopic mechanical behavior. In this paper, Ashby and Sammis’ microcrack model and Charles’ crack growth law are employed to investigate the time-dependent cracking during brittle creep in rock. Based on the macroscopic and micromechanical definition of damage in rock, a new theoretical model is suggested to establish the linkage between microcrack length and macroscopic strain. In order to verify the rationality of the suggested model, comparison between theoretical and experimental results is presented. Using this new model, brittle creep of Sanxia granite is investigated and discussed in detail. It is found that evolutions of wing crack length, strain, and damage perform a similar process during brittle creep and could be divided into three phases. Effects of model parameters on creep failure behaviors also are studied.

Brittle creep in basalt and its application to time-dependent volcano deformation

2011 ◽  
Vol 307 (1-2) ◽  
pp. 71-82 ◽  
Author(s):  
M.J. Heap ◽  
P. Baud ◽  
P.G. Meredith ◽  
S. Vinciguerra ◽  
A.F. Bell ◽  
...  
Keyword(s):  
Time Dependent ◽  
Volcano Deformation ◽  
Brittle Creep

Time-dependent cracking and brittle creep in crustal rocks: A review

2013 ◽  
Vol 52 ◽  
pp. 17-43 ◽  
Author(s):  
N. Brantut ◽  
M.J. Heap ◽  
P.G. Meredith ◽  
P. Baud
Keyword(s):  
Time Dependent ◽  
Crustal Rocks ◽  
Brittle Creep

scholarly journals Time-dependent brittle creep-relaxation failure in concrete

2016 ◽  
Vol 68 (13) ◽  
pp. 692-700 ◽  
Author(s):  
Ying-chong Wang ◽  
Bao-Ju Zhang ◽  
Sheng-Wang Hao
Keyword(s):  
Time Dependent ◽  
Brittle Creep
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