A thermo-plastic/viscoplastic damage model for geomaterials

被引：0

作者：

Zhou H. ^{[1
]}

Hu D. ^{[1
,2
]}

Zhang F. ^{[2
,3
]}

Shao J. ^{[2
]}

机构：

[1] State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

[2] LML, UMR 8107, University of Lille i, Villeneuve d'Ascq

[3] School of Civil Engineering and Architecture, Hubei University of Technology

来源：

Acta Mechanica Solida Sinica | 2011年 / 24卷 / 3期

关键词：

geomaterial; mechanical model; rock salt; thermo-plastic/viscoplastic damage coupled;

D O I：

10.1016/S0894-9166(11)60021-9

中图分类号：

学科分类号：

摘要：

A thermo-plastic/viscoplastic damage coupled model was formulated to describe the time independent and time dependent behaviors of geomaterials under temperature effect. The plastic strain was divided into instantaneous plastic strain and creep plastic strain. To take temperature effect into account, a temperature variable was introduced into the instantaneous and creep plastic behavior descriptions and damage characterization, and a linear thermal expansion law was used in constitutive equation formulation. According to the mechanical behavior of rock salt, a specific model was proposed based on the previous model and applied to Avery rock salt, in which the numerical results obtained from our model had a good agreement with the data from experiments. © 2011 The Chinese Society of Theoretical and Applied Mechanics.

引用

页码：195 / 208

页数：13

共 31 条

[1]

Kelvin L., Elasticity, Encyclopedia Britannica, (1878)

[2]

Bingham E.C., Durham T.C., The viscosity and fluidity of suspensions of finely divided solids in liquids, American Chemical Journal, 46, pp. 278-297, (1911)

[3]

Duvaut G., Lions L.J., Inequalities in Mechanics and Physics, (1962)

[4]

Perzyna P., Thermodynamic Theory of Viscoplasticity, (1971)

[5]

Valanis K.C., A theory of viscoplasticity without a yield surface, Archives of Mechanics, 23, pp. 517-551, (1971)

[6]

Miller A.K., An inelastic constitutive model for monotonic, cyclic, and creep deformation, ASME, Journal of Engineering Materials and Technology, 98, pp. 97-105, (1976)

[7]

Bodner S.R., Merzer A., Viscoplastic constitutive equations for copper with strain rate history and temperature effects, Journal of Engineering Materials and Technology, Transactions of the ASME, 100, 4, pp. 388-394, (1978)

[8]

Liu M.C.M., Krempl E., Uniaxial viscoplastic model based on total strain and overstress, Journal of the Mechanics and Physics of Solids, 27, 5-6, pp. 377-391, (1979)

[9]

Lemaitre J., Chaboche J.L., Mechanics of Solid Materials, (1998)

[10]

Munson D.E., And Dawson P.R., Salt constitutive modeling using mechanism maps, First Conference of Mechanical Behaviors of Salt, (1984)

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