L33 Cam-Clay model (Part 2): calculation of elastic and plastic strains

Topics: Modified Cam-Clay model (MCC), consolidation test, isotropic compressibility coefficients, pre-consolidation stress, elastic ans plastic stiffness matrices, strain localization caused by strain-softening.

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[victoriareis]

theres a lot of cement sheath models that uses modified cam clay and only watching your video I could finally understand. Thank you so much.

[VahidAzami]

Very beautifully explained. Your lecture was highly helpful for me.

[mariogalindoq]

Could you explain please why the model doesn't consider the cohesion being that one of the most important characteristic of a clay is the cohesion? Thank you in advance.

[PedroAraujop]

In a FEM 2D model, after calculating the plastic strains, how do I calculate the values for strain in the vertical (axial) and horizontal directions?
I believe that with the elastic strains it would be easy as we have a constant poisson ratio.

[JosueA_]

Thank you for your explanation. Could you kindly let me know how you obtained equation number 2? Minute 17.54.

[hugoperalta]

great lecture! a pro tip is to watch it in x1.5 speed.

[JamesDean.]

Thank you so much, Could you explain how's Cam-Clay used to model sands?

[zohrea]

Do you recommend using Cam-Clay model when modelling the 1-D consolidation test in FEM?

[pablosorosoto]

Wich would be the loading path of an unconfined load test?

[DivyanshuLal]

very beautifully explained ....can you give more references related to the study of compaction and shear band

[KishanKumar-ihvo]

Very well explained. What are the assumptions you have considered to obtain explicit relations for plastic strain in MCC model (apart from biot coefficient=1) ? How relevant are these assumptions in actual reservoirs. In the literature I see that for MCC model they solve for plastic variable, stress and hardening parameter simultaneously at each loading step or for example in the attached Ruben Juanes paper for shale they solve for stress and plastic multiplier simultaneously. Thank you,

[diogocecilio]

Thank you for the video, very well explained! Can you give any reference with a simple numerical example?

[maria-dshq]

Thank you for this nice lecture. i am still confused about how you obtain the hardening parameters from equations 3, 4 and then how the matrix of plasticity is made? i tried a lot but i couldn't succeed to obtain the equation.