Micropolar hyper-elastoplasticity: constitutive model, consistent linearization, and simulation of 3D scale effects

2012 ◽  
Vol 91 (1) ◽  
pp. 39-66 ◽  
Author(s):  
S. Bauer ◽  
W. G. Dettmer ◽  
D. Perić ◽  
M. Schäfer
Keyword(s):  
Constitutive Model ◽  
Scale Effects ◽  
Consistent Linearization

Micropolar hyperelasticity: constitutive model, consistent linearization and simulation of 3D scale effects

2012 ◽  
Vol 50 (4) ◽  
pp. 383-396 ◽  
Author(s):  
S. Bauer ◽  
W. G. Dettmer ◽  
D. Perić ◽  
M. Schäfer
Keyword(s):  
Constitutive Model ◽  
Scale Effects ◽  
Consistent Linearization

scholarly journals Constitutive model of scale effects in uniaxial compression for gas-saturated coal

2011 ◽  
Vol 26 ◽  
pp. 166-172 ◽  
Author(s):  
Song Liang ◽  
Liu Weiqun ◽  
Jin Cuijun ◽  
Liang Haonan
Keyword(s):  
Constitutive Model ◽  
Uniaxial Compression ◽  
Scale Effects

Effects of finite-size joints on the deformability of jointed rock at the two-dimensional level

1994 ◽  
Vol 31 (3) ◽  
pp. 364-374 ◽  
Author(s):  
Pinnaduwa H.S.W. Kulatilake ◽  
Hasan Ucpirti ◽  
Ove Stephansson
Keyword(s):  
Constitutive Model ◽  
Scale Effects ◽  
Distinct Element ◽  
Density Ratio ◽  
Finite Size ◽  
Block Size ◽  
Jointed Rock ◽  
Two Dimensional ◽  
Joint Orientation ◽  
Joint Geometry

A numerical decomposition technique, which has resulted from a linking between joint-geometry modeling and generation schemes, and a distinct element code (UDEC), is used to study the effect of joint-geometry parameters of finite-size joints on the deformability properties of jointed rock at the two-dimensional (2D) level. The influence of joint-geometry parameters such as joint density, ratio of joint size to block size, and joint orientation on the deformability of jointed rock is shown. Relations are established between deformability properties of jointed rock and fracture-tensor parameters. An incrementally linear elastic, anisotropic constitutive model is developed to represent the prefailure mechanical behaviour of jointed rock at the 2D level. This constitutive model has captured the anisotropic, scale-dependent behaviour of jointed rock. In this model, the effect of the joint-geometry network in the rock mass is incorporated in terms of fracture-tensor components. Some insight is given related to estimation of representative elementary volumes for deformability properties of jointed rock. Key words : rock masses, deformability, distinct element method, fracture tensor, anisotropy, scale effects.

IMPLICATIONS OF A CONSTITUTIVE MODEL FOR STRAIN LOCALIZATION

1988 ◽  
Vol 49 (C3) ◽  
pp. C3-489-C3-496
Author(s):  
B. D. COLEMAN ◽  
M. L. HODGDON
Keyword(s):  
Constitutive Model ◽  
Strain Localization
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