CEEN 641 - Lecture 19 - Critical State Soil Mechanics - Computing Stress Paths using CSM (Part II)

In this lecture, I discuss how to compute stress paths for drained and undrained loading in p' and q space, as well as void ratio and p' space. I discuss the "rules" for computing stress paths given this simplistic CSM model with an elliptical yield surface. Please refer to the textbook "Soil Mechanics and Foundations" by Muni Budhu.

[joeyjoeyjojo]

Thank you for sharing your excellent lectures. There is very little content available relating to geotechnical engineering which is as approachable in its presentation, yet so through in its explanation.

[r.d]

Thanks for extremely useful content, better explanation than in City uni London

[elyasm]

Hello Dr. Franke that you very much for this wonderful lectures, going through your elementary mechanics playlist first, I noticed that lecture 22 was missing, could you please upload this. In addition, on this playlist some of the lectures are missing. I hope you respond to this it is extremely difficult to find a professor that has explanations as concise and easy to follow as yours. Hope this message reaches you.

[marshmelows]

Amazing video on CSM, thank you so much !

[m.sadati]

I can't see the third part of this video anymore, and I would really like to watch, is there a way?

[lucasluzzi]

you saida at 29:15 "as long as you are within the yield surface you are on the UR line" Does that implies that at the same time you reach the yield surface you will reach the UR line?

[NANDAHLAINGWIN]

Sir,
Could you kindly upload again the following lectures those are missing from Youtube?
CEEN 641,
Lesson 1,
Lessons 4 to 10,
Lessons 12 to 13,

[b.y.]

hi thanks for this video, just one question : why the critical state line always crosses the origin in the cam clay model? the cohesion of the soil is not taken into account with this model? thanks

[ammarsohail]

Does most of the change in void ratio occur along the failure shear band for heavily overconsolidated clays?

[youwilllaugh]

What are the direct practical applications of this?

[muhamadaminalsalamat]

Thank you for the very useful videos! just regarding rule number 4 how it comes that the sample may contract or dilate and no changes to the void ratio will happen? for example; dilation means the (e) will increase !?