Publication | Closed Access
Elasto‐plastic modelling of Red Wildmoor sandstone
73
Citations
0
References
1999
Year
Red Wildmoor SandstoneRock TestingEngineeringMechanical EngineeringWeak SandstoneMechanics ModelingGeotechnical EngineeringDeformation ModelingMechanical BehaviorExtension TestsSolid MechanicsPlasticityMechanical DeformationRock PropertiesCivil EngineeringGeomechanicsRock PhysicRock FragmentationRock MechanicsMechanics Of Materials
On the basis of an extensive experimental program of axisymmetric triaxial compression and extension tests, the mechanical behaviour of a weak sandstone (Red Wildmoor sandstone) is analysed and modelled within the frame of the theory of elastoplasticity. Stress-dependent elasticity and damage are incorporated into the model. Pressure sensitivity of the plastic behaviour is described through a non-linear Mohr–Coulomb model with friction hardening and cohesion softening. Emphasis is given on the calibration procedure. Validation of the model is done through back analysis of the experimental tests. Shear-band analysis is performed on the basis of the extension of the constitutive model to non-coaxial plasticity. Copyright © 1999 John Wiley & Sons, Ltd.