Hello! I was needing some help understanding why my design is not giving me a safety factor of 1 similar to when I compared it with my 3 point bending mechanical tests on a instron machine. I have created a I beam design and 3d resin printed it. After resin printing my design, I put the physical beam into a instron testing mechanism to run a 3 point bending test. During that test, it gave me the maximum force (UTS) to be 18100N. When running the simulation on Fusion 360 for my beam, the maximum force to give me a safety factor of 1 was 1700N. Can you help explain what could be wrong with my model and why I can get a safety factor of 1 when testing it mechanically but I cant get the same force to read in fusion 360? When putting the force on the beam to simulate it in Fusion 360, I have the correct material that was also used in my physical mechanical testing and I changed the safety factor to be based on UTS instead of YS.
Here is my beam design that I was trying to mimic the similar forces to my mechanical tests.
Even if I changed the beam design to look similar to the testing set up, it still does not give me the similar forces when compared to the mechanical tests.
