So this semester, I'm taking a Finite Element Method course at my graduate school. We started out making codes for 1D bars and came all the way to 8 node solid elements. However, I seem to have run into a wall, as I have made my code and combed through it for the past week, making sure all the shape functions and mathematics were correct. In the end, everything looks correct. However, while I am supposed to get deflections in the z direction around the ballpark of 0.3 m, I keep getting deflections in the magnitude of E-04. I am very much at my wit's end. Also, because I genuinely don't know which StackExchange community to post this question to, I have tried Mathematics and Overflow. I would like to emphasize that I'm not trying to just spam my question. If you kindly explain to me why my question doesn't belong here, I will delete it quickly. But I have done my research and I have made my own code, so I'm not trying to something out of nothing. Any and all help is appreciated. I will detail the problem below:
- There is a bar that is fully clamped at one end.
- It is 1[m] long in the x-dir and 0.1[m] long in the y-dir and z-dir.
- A point force of 100[kN] is applied in an upward direction at the free end of the bar. The number of elements in the y-dir and z-dir is to always be 1 element only, but the I'm supposed to increase the number of x-dir elements to show that the displacement values converge. Currently, not only do they not converge, but the values are much too small.
Once again, thank you for any and all help.