The German Institute of Robotics and Mechatronics has run some experiments on man-machine collisions.
Here, it’s rather a case of a Kuku robotic arm against a mannequin head (the same as those you see in car crash-tests).
This type of experiment enables the development of anti-collision and safety
This is a companion discussion topic for the original entry at https://community.robotshop.com/blog/show/man-robot-collisions