Comments

• MikeMcMullen

  January 2024

  Beyond me. Not a materials engineer, especially those for which Mohr columb is used for. Also the soils examples I was exposed to were always 2D, or simplified to reduce to approximately 2D. All real tests involve 3D interaction though.
• MikeMcMullen

  August 14

  I failed to note in my description that the tensile strength can vary considerably from point to point and is dependent upon the scale of the zone in tension, temperature, aggregate size, etc. Also the ability of a crack to lengthen under load is probably a function of the energy required to propagate the crack tip. This is not as clearly defined in concrete or timber as it is in steel which has been well researched. Don't know about cast iron.