Modeling of creep in rock materials in terms of material degradation

Shao, Jian‐Fu; Zhu, Qi‐Zhi; Su, Kun

doi:10.1016/s0266-352x(03)00063-6

Cited by 199 publications

(76 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…La Figura 5 muestra la deformación en el tiempo para el modelo reológico (abajo, [6]) y la del hormigón de referencia acuerdo a CEB-FIP (arriba, [5]) para el periodo ensayado de cuatro días. En la Figura 6 los mismos pará-metros para un periodo de 10.000 días.…”

Section: Discussionunclassified

“…This rheological model has been fitted to the CEB-FIB model parameters in order to reproduce the behaviour of the previously defined function [5] during a load period of 10000 days as follows: Firstly [5] has been discretized in order to be considered as a timestrain data series; secondly a least-square adjustment of the function that represents the behaviour of the rheological model has been performed and as a consequence the parameters of the model (E i and η j ) have been computed. Figure 4 shows the proposed model.…”

Section: Rheological Modelmentioning

confidence: 99%

“…Este modelo reológico se ha ajustado a los parámetros del modelo CEB-FIB a fin de reproducir el comportamiento de la función previamente definida [5] durante un periodo de carga de 10.000 días de la siguiente forma: En primer lugar la ecuación [5] se ha discretizado con el fin de tratarla como una Tabla de datos tiempo-deformación, en segundo lugar se ha ajustado por mínimos cuadrados la función que representa el comportamiento del modelo reológico a estos datos, y como consecuencia de ello se han obtenido los parámetros del modelo (E i y η j ). La Figura 4 muestra el modelo propuesto.…”

Section: Modelo Reológicounclassified

“…The parameters fitted to the rheological model are shown in Table 3. Figure 5 shows the creep time-series of the rheological model (below, [6]) and the reference concrete according CEB-FIP (arrives, [5]) for the tested period of four days. In Figure 6 the same parameters for a period of 10000 days are also plotted.…”

Section: Modelo Reológicomentioning

confidence: 99%

See 3 more Smart Citations

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

et al. 2013

View full text Add to dashboard Cite

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

Section: Discussionunclassified

Section: Rheological Modelmentioning

confidence: 99%

Section: Modelo Reológicounclassified

Section: Modelo Reológicomentioning

confidence: 99%

See 2 more Smart Citations

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

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Viscoplasticity is also taken into account to reproduce the creep deformation of the claystone [26,27]. The plastic strain is assumed to be composed of an instantaneous strain p ij independent of time and of a time-dependent creep strain vp ij [28].…”

Section: First Gradientmentioning

confidence: 99%

Modelling the influence of strain localisation and viscosity on the behaviour of underground drifts drilled in claystone

Pardoen

Collin

2017

Computers and Geotechnics

View full text Add to dashboard Cite

In the context of the deep geological repository of nuclear wastes, Andra con- Email address: f.collin@ulg.ac.be (F. Collin) 1 FRIA, F.R.S.-FNRS scholarship holder Preprint submitted to Computers and Geotechnics March 18, 2016 to reproduce the EDZ behaviour. Modelling shear banding around the gallery is an important aspect that leads to a better description of the EDZ for the considered claystone. Moreover, considering the material viscosity allows a better reproduction of the gallery convergence in the long term.

show abstract

Elastoplastic Behavior of Ductile Porous Rocks

Shao¹,

Xie²

2008

Constitutive Modeling of Soils and Rocks

View full text Add to dashboard Cite

Modeling of creep in rock materials in terms of material degradation

Cited by 199 publications

References 14 publications

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

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

Modelling the influence of strain localisation and viscosity on the behaviour of underground drifts drilled in claystone

Elastoplastic Behavior of Ductile Porous Rocks

Contact Info

Product

Resources

About