The article studied how double-ring joints behave when bent, bent and sheared, or loaded off-center. By using computer simulations and calculations, the researchers found: 1) The double-ring joint can hold a certain amount of weight before breaking and can twist a little at the beginning. 2) When bent and sheared, the joint acts similarly to when just bent. 3) The relationship between how much weight the joint can hold and how off-center the load is can be described by a specific mathematical formula.