A New Elasto-Viscoplastic Damage Model Combined with the Generalized Hoek–Brown Failure Criterion for Bedded Rock Salt and its Application

Ma, Linjian; Liu, Xinyu; Fang, Qin; Xu, Hongfa; Xia, Huimin; Li, Erbing; Yang, Shizhong; Li, Wenpei

doi:10.1007/s00603-012-0256-8

Cited by 67 publications

(34 citation statements)

References 24 publications

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“…Thus, the irreversible volumetric strain increases due to the opening of micro-cracks, and other relevant factors such as damage, permeability increase and long-term failure take place in this zone. To take into account the above-mentioned mechanical properties of rock salt, different constitutive models have been developed (Cristescu & Hunsche, 1998;Olivella & Gens, 2002;Hou, 2003;Minkley & Muehlbauer, 2007;Ma et al, 2012). In this thesis three well-established rock salt constitutive models are employed, namely LUBBY2, BGRa and…”

Section: Computational Modelmentioning

confidence: 99%

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

et al. 2016

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Section: Computational Modelmentioning

confidence: 99%

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

et al. 2016

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“…Based on the theory proposed by Cristescu, Maranini and Yamaguchi (2001) formulated a nonassociated constitutive equation to describe the elastic and viscoplastic properties of granite during any compressive state. Combining with the generalized HoekBrown criterion, Ma et al (2013) put forward a three-dimensional creep damage constitutive model, which enables both the three creep phases and the deformation induced by vicious damage and plastic flow to be calculated. To simulate the tertiary creep process of sandstone, Jiang et al (2013) presented an extended Nishihara model by introducing a nonlinear Newton body, the viscosity coefficient of which changing with time instead of being constant.…”

Section: Introductionmentioning

confidence: 99%

A creep constitutive model with variable parameters for thenardite

et al. 2016

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Results from the triaxial creep tests indicate that the relationship between steady creep rate of thenardite and deviatoric stress can be described with the Heard model. By combining the Kelvin model which reflects the primary creep property of rock with the Heard steady creep model, a Kelvin-Heard (K-H) creep model is constructed. However, the predicted curves from the K-H model are not in good agreement with the creep test data of thenardite. To improve the prediction precision, it is assumed that the viscosity coefficient of thenardite increases over time in primary creep stage, and an improved K-H model is proposed. Compared with the K-H model, the improved K-H model can more precisely describe the creep behavior of thenardite under a certain stress state. However, each of its parameters G, g ? , a and b has different values under different deviatoric stress levels. These four parameters all decrease with the increase in deviatoric stress, which is considered to establish an improved K-H model with variable parameters for thenardite finally. Comparison with the test data shows that this model can precisely predict the creep behavior of thenardite when 25 MPa B r 1 -r 3 B 40 MPa.

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“…Generally in sedimentary rocks viscosity is a more determining factor, leading to greater deformations in the longer term (13). Porosity is essential, (14) distinguishes between the hard part (matrix) and the soft part (pores, fractures, cracks ...). The soft part is subject to large deformations were compressed.…”

Section: Introductionmentioning

confidence: 99%

“…En las rocas sedimentarias en general la viscosidad adquiere mayor importancia, dando lugar a mayores deformaciones a más largo plazo (13). La porosidad es esencial, (14) distingue entre parte dura (matriz) y parte blanda (poros, fracturas, fisuras…). La parte blanda está sujeta a grandes deformaciones.…”

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Estudio de la fluencia de una calcarenita: la Piedra de San Julián (Alicante)

et al. 2013

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Rocks creep has a great importance in the evaluation of the long-term behaviour of elements built with or within these materials. In this work, a porous well-known limestone locally named as San Julián stone has been physically and mechanically characterized. Uniaxial compressive tests for 96 h. at constant stress are carried out. Long-term behaviour has been modelled by means of a well-known creep model, the CEB-FIP Model code 2010, used for modelling other stony-material (i.e. concrete). Furthermore, a rheological model has been proposed. The main aim of this work is to investigate the possibility of exploiting the vast experience accumulated in the study of concrete deformational long-term behaviour in order to obtaining a reasonable approach to the behaviour of the rock, for too long testing times difficult to implement in laboratory. A creep function adapted to the studied rock only dependent on its elastic and mechanical characteristics is also proposed in this work.

show abstract

A New Elasto-Viscoplastic Damage Model Combined with the Generalized Hoek–Brown Failure Criterion for Bedded Rock Salt and its Application

Cited by 67 publications

References 24 publications

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

A creep constitutive model with variable parameters for thenardite

Estudio de la fluencia de una calcarenita: la Piedra de San Julián (Alicante)

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