Mohr's Arbelos and Lamé's Ellipsoids
Mohr's Arbelos and Lamé's Ellipsoids
Mohr's arbelos and Lamé's ellipsoids are two representations of the stress state at any point of a continuum. These give a geometric interpretation of the stress vector as a function of the direction of the normal to the infinitesimal facet across which this stress is exchanged.
This Demonstration helps with understanding the relationship between Mohr's arbelos and Lamé's ellipsoids by viewing a synchronous animation in which the stress vector changes with the direction of the normal.