Topic: Interface between two macro-elements
I am trying to model a beam with a notch (or a dapped end beam) and I'm modelling it as three separate macro-elements:
One macro-element for the section above the notch, one macro-element adjacent to that macro-element, and then one macro-element beneath that one. However, when analyzing the beam then viewing the principal strains in the post-processor, the strain appears to be discontinuous between the macro-elements as opposed to flowing continuously between them. For example, right at the interface of the two macro-elements, macro-element 1 might have a strain of -0.002, but macro-element 2 might have a strain closer to 0.
The contact is set to perfect connection between the macro-elements. Is there a specific reason this is happening?