I have run a static analysis in which the results indicate stresses beyond the yield point of the material. Since the stresses are compressive in nature as opposed to in tension, I am not terribly concerned since most materials are considerably stronger in compression than they are in tension. I am wondering, however, if there is a rule of thumb or some way of interpreting compressing load results to understand how the material will actually behave in the real world. For instance, will it simply deform slightly, or will it catastrophically fail by being crushed, etc? Does anyone have any advice?
There is a pin that goes through the hole in the image below. The outer tube sleeve (with the square block welded on its top) is rotated while the inner bar is held fixed to ground. Since the pin (not shown) passes through both the outer tube as well as the inner bar it places stresses as seen below in the assembly components. The material is all carbon steel.