Animating Soil Mechanics – Visualizations as open education tool for soil mechanics
Contact: Gertraud Medicus – gertraud.medicus@uibk.ac.at
Acknowledgement: Over the past years, I have received many messages, valuable feedback and had encouraging conversations about the project Animating Soil Models (soilmodels.com/soilanim/) – by email, on LinkedIn and Twitter, at conferences and in different courses. This feedback motivated me to start the new project Animating Soil Mechanics. Thank you all very much!
Shearing of layers of circular discs, based on Muir Wood (2009)
Coulomb’s active earth pressure, wall friction δ = 0
Active earth pressure, wall friction δ = 0, c = 0
upcoming
The interactive graphics below have been created with GeoGebra
You can use the slider for variation of the radius. In addition, it is possible to move the point A (blue bullet) and the center C (black bullet). Sign convention: Tensile stresses (+), compressive stresses (-), for more details on sign convention, see for example Mang & Hofstetter (2013).
click to enlarge, the Figure is based on Mang & Hofstetter (2013)
This figure might help to illustrate the link between Mohr’s circles and stress paths, using a conventional drained triaxial compression test. The Mohr-Coulomb failure line for c=0 is shown and the stress state can be adjusted using the slider.
for mechanical sign convention, tensile stresses (+), compressive stresses (-): click to enlarge
for geotechnical sign convention, tensile stresses (-), compressive stresses (+): click to enlarge
Use the sliders to vary the parameters c and φ. You can also adjust the minor principal stress σ₃ for a given σ₁=-100 kPa until the Mohr-Coulomb failure criterion is reached.
for mechanical sign convention, tensile stresses (+), compressive stresses (-): click to enlarge
for geotechnical sign convention, tensile stresses (-), compressive stresses (+): click to enlarge
