Modelling Tree Branch Failure

Schematic representation of the induced forces in a branch. Moment is present in the branches due to weight and wind flowing through leaves, torsion is present in the branch from adjacent branches and is also subject to weight and wind forces.

I am given a project to monitor tree branch failure. My current approach is to use an accelerometer to monitor its position and movement over time. From the references I found, the two forces that causes tree branch failure are torsion and bending moment. However, I am unable to apply such forces into a healthy tree branch.

I need to develop a model on which I can test my design. My field is EE, with no prior knowledge on trees and very limited knowledge on mechanics.

I am trying to procure wooden beams as simplified model of the branches. However, I am unable to find a fitting method to model the branch joint and tree leaves. I have also failed to come up with a satisfactory idea on giving torsion and bending moment to the model.

Can someone help me come up with ideas for the tree branch model and the experiment setup?